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66results about How to "Easy to process and integrate" patented technology
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Broadband three-mode balanced band-pass filter based on interdigital multi-mode resonators
InactiveCN104900949ASimple structureEasy to process and integrateWaveguide type devicesCommunications systemBand-pass filter
The invention discloses a broadband three-mode balanced band-pass filter based on interdigital multi-mode resonators, comprising a dielectric substrate, an input port feeder, a first output port feeder, a second output port feeder, a first interdigital multi-mode resonator and a second interdigital multi-mode resonator which are arranged on the upper surface of the dielectric substrate, and a metal grounding plate which is disposed on the lower surface of the dielectric substrate. The first interdigital multi-mode resonator and the second interdigital multi-mode resonator are respectively disposed at the two sides of the input port feeder, and are symmetrical stub-loaded multi-mode resonators. The broadband three-mode balanced band-pass filter of the invention has the characteristics of wide stop band, miniaturization, high common-mode rejection, high selectivity, low loss, and the like, and is very suitable for modern wireless communication systems.
Owner:NANJING UNIV OF SCI & TECH
Broadband three-mode Balun band-pass filter based on E multi-mode resonators
InactiveCN105990629AImprove matchSimple structureResonatorsCommunications systemDielectric substrate
The invention discloses a broadband three-mode Balun band-pass filter based on E multi-mode resonators, comprising an input feeder, a dual-port output feeder, a three-port output feeder, a first E multi-mode resonator, a second E multi-mode resonator, a dielectric substrate, and a metal ground plate. The first and second E multi-mode resonators are symmetrical stub-loaded multi-mode resonators. The input feeder, the dual-port output feeder, the three-port output feeder, the first E multi-mode resonator and the second E multi-mode resonator are disposed on the upper surface of the dielectric substrate, and the metal ground plate is disposed on the lower surface of the dielectric substrate. The first E multi-mode resonator includes two quarter-wave resonators and a symmetrical stub loading unit. The second E multi-mode resonator includes two quarter-wave resonators and a symmetrical stub loading unit. The broadband three-mode Balun band-pass filter has the advantages of simple structure, low loss, good selectivity and good port matching property, and is very applicable to a modern wireless communication system.
Owner:NANJING UNIV OF SCI & TECH
Unequal power divider based on microstrip ridge-type gap waveguide
InactiveCN107134624ASolve the problem of unequal power distributionLow insertion lossCoupling devicesGround planeMicrostrip
The invention discloses an unequal power divider based on a microstrip ridge-type gap waveguide. The unequal power divider is composed of a dielectric plate of a through hole layer, an air gap layer and a metal cover plate on the air gap layer. The unequal power divider concretely comprises printed microstrip lines in the upper surface of the dielectric substrate, periodic metal pasters, periodic metalized through holes and a metal grounding plate, the metal grounding plate is in the lower surface of the dielectric plate of the through hole layer, and an air gap of certain height is left between the dielectric plate of the through hole layer and the metal cover plate in the upper layer; the microstrip lines are in short connection to the grounding plane via the metalized through hole arranged in a periodic way to form a micrstrip ridge type structure; and the metalized holes arranged in the periodic way are arranged in the surrounding of the printed microstrip line structure, and each metalized hole and the metal paster in the corresponding position form an EBG structure. Thus, problems in unequal power distribution ratio adjustment and phase adjustment of the microstrip ridge-type waveguide are solved, and the unequal power divider also has the advantages of being simple in structure, easy to integrate, easy to process, small in size, wide in bandwith, low in insertion loss and stable in structural performance.
Owner:NANJING UNIV OF SCI & TECH
Packaging structure for three-dimensional integration of radio frequency system and design method thereof
PendingCN110473789AEasy to process and integrateRealize interconnectionSemiconductor/solid-state device detailsSolid-state devicesInterconnectionEngineering
The invention discloses a packaging structure for three-dimensional integration of a radio frequency system and a design method thereof. The structure comprises a silicon-based adapter plate and at least two supporting interconnection adapter plates which are alternately and longitudinally stacked from bottom to top, wherein a cavity is formed between the at least two supporting interconnection adapter plates; each of the silicon-based adapter plate and the supporting interconnection adapter plates comprises a silicon substrate, a through silicon via (TSV), micro bumps and an RDL wiring layer.The TSV penetrates the silicon substrate; the RDL wiring layers are arranged on the upper surface and the lower surface of the silicon substrate; the micro bumps are arranged on the two RDL wiring layers; the TSV, the RDL wiring layers, and the micro bumps are connected with one another. The structure has the effects of vertical interconnection and structural support, three-dimensional vertical stacking of radio frequency chips can be achieved, and the problem of electromagnetic compatibility during three-dimensional stacking of the radio frequency chips can be solved through flexible design.
Owner:CHENGDU GANIDE TECH
Tapped feed dual-mode Balun band-pass filter
InactiveCN105304982ASimple structureEasy to process and integrateWaveguide type devicesLow-pass filterDual mode
The invention discloses a tapped feed dual-mode Balun band-pass filter which comprises a rectangular medium baseplate (6) of which the lower surface is equipped with a metal grounding plate (7), wherein an input port feeder line (1), a first output port feeder line (2) and a second output porter feeder line (3) are disposed on the upper surface of the rectangular medium baseplate (6), the input porter feeder line (1) is close to one wide edge of the rectangular medium baseplate (6), the first output port feeder line (2) and the second output port feeder line (3) are close to the other wide edge of the rectangular medium baseplate (6) and are arranged successively along the length direction of the rectangular medium baseplate (6), a first E-type resonator (4) is disposed between the first output port feeder line (2) and the input port feeder line (1), and a second E-type resonator (5) is disposed between the second output port feeder line (3) and the input port feeder line (1). The tapped feed dual-mode Balun band-pass filter disclosed by the invention is simple in structure, low in losses and good in selectivity and port matching.
Owner:NANJING UNIV OF SCI & TECH
A planar end-emitting pattern reconfigurable antenna
ActiveCN109066073ALow profileEasy to process and integrateRadiating elements structural formsAntenna earthingsReconfigurable antennaElectrical conductor
The invention discloses a planar end-emitting pattern reconfigurable antenna, include a dielectric substrate, radiation patch, slotted floor, switch and bias circuits and coaxial cables, the dielectric substrate includes an opposing first surface and a second surface, the radiation patch is attached to the first surface of the dielectric substrate, the grooved floor is attached to the second surface of the dielectric substrate, The switch and the bias circuit are arranged in the slotted floor slot, the coaxial cable comprises an outer conductor and an inner conductor, the outer conductor is connected with the slotted floor, the inner conductor is connected with the radiation patch through the dielectric substrate, and the coaxial cable is arranged at the geometric center of the planar end-emitting pattern reconfigurable antenna; The invention discloses a planar end-emitting pattern reconfigurable antenna, which not only has excellent circuit characteristics and radiation characteristics, but also has the advantages of compact size and simple structure, and reduces the complexity and cost of a radio frequency antenna module.
Owner:SOUTH CHINA UNIV OF TECH
Substrate integrated ridge waveguide slot array broadband leaky-wave antenna
InactiveCN106299712AReduce transmission lossWorking frequency bandwidthAntenna arraysRadiating elements structural formsDielectric plateBroadband
The invention discloses a substrate integrated ridge waveguide slot array broadband leaky-wave antenna which is of a symmetrical structure about an H surface. The substrate integrated ridge waveguide slot array broadband leaky-wave antenna comprises a substrate integrated waveguide and a ridge metal layer, wherein the substrate integrated waveguide comprises a lower metal layer, a lower dielectric plate, an upper dielectric plate and an upper metal layer; the lower metal layer, the lower dielectric plate, the ridge metal layer, the upper dielectric plate and the upper metal layer are overlapped in sequence; a row of side via holes is formed in each side of the ridge metal layer, and the side via holes pass through the lower metal layer, the lower dielectric plate, the upper dielectric plate and the upper metal layer in sequence; a row of middle via holes is further formed in the center line of the ridge metal layer in the length direction, and the middle via holes pass through the lower metal layer, the lower dielectric plate and the ridge metal layer (3) in sequence; the antenna can realize frequency scanning of 28 degrees to 84 degrees on the H surface, and the impedance bandwidth can reach 38%; and meanwhile, the antenna has the prominent advantages of being high in gain, low in minor lobe level, easy to machine and integrate and the like.
Owner:SICHUAN ZHONGCE MICROGRID TECH CO LTD
Dual-passband band-pass filter based on asymmetric coupling lines
The invention provides a dual-passband band-pass filter based on asymmetric coupling lines. The filter comprises a dielectric substrate, a filter positioned on the upper surface of the dielectric substrate, and a metal grounding plate positioned on the lower surface of the dielectric substrate, the filter comprises an H-shaped multi-mode resonator with an improved center, asymmetric parallel coupling lines loaded on the left side and the right side of the multi-mode resonator, stepped impedance branches loaded on the upper side and the lower side of the multi-mode resonator, parallel three-line coupling lines composed of high impedance lines and the parallel coupling lines, and open circuit branches loaded on the lower side of a left port feeder line. According to the invention, under thestrong coupling effect of the multi-mode resonator loaded with a stepped impedance stub and the asymmetric coupling line structure, the selectivity of a passband is improved, and the size of the filter is reduced. The two passbands are low and adjustable in insertion loss, so the filter is good in out-of-band characteristic, compact in structure, low in cost, convenient to process and easy to integrate with other circuits.
Owner:LIAONING TECHNICAL UNIVERSITY
Balun band-pass filter based on slot line and microstrip multimode resonators
InactiveCN107579317ASimple structureEasy to process and integrateCoupling devicesBand-pass filterDielectric substrate
The invention discloses a balun band-pass filter based on a slot line and microstrip multimode resonators. The balun band-pass filter comprises a rectangular dielectric substrate (7) provided with a metal grounding plate (8) on the lower surface, wherein the upper surface of the dielectric substrate (1) is provided with an input port feeder (1), a first output port feeder (2) and a second output port feeder (3); an input end of the input port feeder (1) is positioned at a midpoint of a narrow side of the dielectric substrate (7), an output end of the first output port feeder (2) is positionedon a broadside of the dielectric substrate (7), and an output end of the second output port feeder (3) is positioned on another broadside of the dielectric substrate (7); and a short-circuit half-wavelength resonator (4) and a branch-loaded resonator (5) are arranged between the input port feeder (1) and the first output port feeder (2), and a continuous bending type half-wavelength slot line (6)is etched on the metal grounding plate (8). The balun band-pass filter disclosed by the invention has the advantages of high selectivity, good port matching feature and small phase deviation.
Owner:NANJING UNIV OF SCI & TECH
Full-band absorption dual-frequency band-pass filter with complementary duplex structure
ActiveCN112909461ANovel structureGuaranteed normal transmissionWaveguide type devicesInterference (communication)Communications system
The invention discloses a full-band absorption dual-frequency band-pass filter with a complementary duplex structure, and belongs to the electrical field. The overall structure is composed of a dual-frequency band-pass filtering structure and complementary dual-frequency band-stop absorption branches in bilateral symmetry. The dual-frequency band-pass filtering structure comprises a coupling line c and a microstrip line s1 connected with the coupling line c; the microstrip line s1 is respectively connected with the left and right complementary dual-frequency band-stop absorption branches, and is also connected with the input port and the output port; the complementary dual-frequency band-stop absorption branch comprises an absorption branch knot and a stepped impedance open-circuit branch knot; the stepped impedance open-circuit branch knot comprises microstrip lines s3 and s4 which are connected in series; the absorption branch knot comprises a microstrip line s5 and a grounding resistor R1 which are connected in series; and when a signal is input from the first port, an in-band signal is transmitted to the output port through the dual-frequency band-pass filtering structure, an out-of-band signal is absorbed through the complementary dual-frequency band-stop absorption branch, and current is converted into energy to be dissipated through the energy dissipation element resistor. According to the invention, useless signals are prevented from being reflected to equipment connected with the useless signals to cause interference on the performance of a communication system.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Anti-phase unequal power divider based on parallel coupling structure
InactiveCN105591183ASimple structureEasy to process and integrateCoupling devicesFeed lineTransmission line
The invention discloses an anti-phase unequal power divider based on a parallel coupling structure. The anti-phase unequal power divider includes a rectangular medium substrate of which a lower surface is provided with a metal ground plate. An upper surface of the medium substrate is provided with an input terminal feed line, a first output terminal feed line, and a second output terminal feed line. A first parallel coupling structure and a first 1 / 4 wavelength transmission line are arranged between the input terminal feed line and the first output terminal feed line. A second parallel coupling structure and a second 1 / 4 wavelength transmission line are arranged between the input terminal feed line and the second output terminal feed line. A third 1 / 4 wavelength transmission line, a fourth 1 / 4 wavelength transmission line, and a resistor are also arranged between the first output terminal feed line and the second output terminal feed line. The resistor is connected to the ground plate on the lower surface of the medium substrate through a metal through hole in the medium substrate. The anti-phase unequal power divider has simple structure, low loss, high isolation, and small phase deviation.
Owner:NANJING UNIV OF SCI & TECH
Novel wideband four-way filtering power divider
ActiveCN109326855ACompact structureEasy to process and integrateWaveguide type devicesElectrical resistance and conductanceCoupling
The invention discloses a novel wideband four-way filtering power divider, which comprises a rectangular medium base plate with a metal grounding plate arranged on the lower surface, wherein an inputport feeder line, first to fourth output port feeder lines and first to fourth output coupling lines are arranged on the upper surface of the rectangular medium base plate; a first multimode resonatoris arranged between the second output port feeder line and the input port feeder line; a second multimode resonator is arranged between the fourth output port feeder line and the input port feeder line; a first isolation resistor is arranged between the first multimode resonator and the second multimode resonator; a second isolation resistor is arranged between the first coupling output line andthe second coupling output line; and a third isolation resistor is arranged between the third coupling output line and the fourth coupling output line. The novel wideband four-way filtering power divider is symmetrical axially about the symmetry axis of the input port feeder line. The wideband four-way filtering power divider is compact in structure, low in loss, high in selectivity, good in isolation, and has good out-band suppression performance.
Owner:NANJING NORMAL UNIVERSITY
Multi-mode resonator based dual-mode balun bandpass filter
ActiveCN105826640AImprove matchSimple structureWaveguide type devicesBandpass filteringCommunications system
The invention discloses a dual-mode balun bandpass filter based on a multi-mode resonator, which includes an input feeder, a two-port output feeder, a three-port output feeder, a first multi-mode resonator, and a second multi-mode resonator device, dielectric substrate, metal ground plate, the first multimode resonator and the second multimode resonator are all multimode resonators loaded on the symmetry plane; the feeder at the input end, the feeder at the two-port output end, and the feeder at the three-port output end , the first multimode resonator and the second multimode resonator are located on the upper surface of the dielectric substrate, and the metal ground plate is located on the lower surface of the dielectric substrate; the first multimode resonator includes two quarter-wavelength resonators, two The symmetrical plane stub loading unit, the second multimode resonator includes two quarter-wavelength resonators and two symmetrical plane stub loading units. The balun bandpass filter of the invention has the advantages of simple structure, low loss, good selectivity and good port matching characteristics, and is very suitable for modern wireless communication systems.
Owner:NANJING UNIV OF SCI & TECH
Dual-mode high-performance balance band-pass filter based on E-shaped resonators
InactiveCN105244573ASimple structureEasy to process and integrateWaveguide type devicesPhysicsDielectric substrate
The invention discloses a dual-mode high-performance balance band-pass filter based on E-shaped resonators. The dual-mode high-performance balance band-pass filter comprises input port feeder lines, output port feeder lines, a first E-shaped resonator and a second E-shaped resonator positioned on the upper surface of a dielectric substrate and a metal ground plate positioned on the lower surface of the dielectric substrate. The first E-shaped resonator and the second E-shaped resonator are symmetrical surface branch loaded dual-mode resonators; the input port feeder lines comprise a first input port feeder line and a second input port feeder line which are symmetrically connected with each other; the output port feeder lines comprises a first output port feeder line and a second output port feeder line which are symmetrically connected with each other; and each of the first E-shaped resonator and the second E-shaped resonator comprises a half wavelength resonator and a symmetrical surface branch loading unit. The dual-mode high-performance balance band-pass filter has the characteristics of miniaturization, high common mode rejection, high selectivity, low loss and the like, and is very suitable for modern wireless communication systems.
Owner:NANJING UNIV OF SCI & TECH
In-phase power division filter based on slot line and microstrip
ActiveCN111613859ASimple structureEasy to process and integrateCoupling devicesPhysicsDielectric substrate
An in-phase power division filter based on a slot line and a microstrip, disclosed by the present invention, comprises a rectangular dielectric substrate (4), a metal grounding plate (9) is arranged on the lower surface of the rectangular dielectric substrate (4), and an input port feeder line (1), a first output port feeder line (2) and a second output port feeder line (3) which are symmetricallydistributed, are arranged on the upper surface of the dielectric substrate (4). A T-shaped microstrip line (10) is positioned in the middle of the dielectric substrate, the first microstrip line (20)and the second microstrip line (30) are respectively connected with the first output port feeder line (2) and the second output port feeder line (3), and the continuous right-angle bent slot lines (6) and (7) and circular fan slot lines (8) are etched on the metal grounding plate (9). The isolation resistors (5) are arranged below the joints of the circular fan slot lines (8), and the metal columns are distributed at the two ends of each isolation resistor (5) respectively. The slot line in-phase power dividing filter of the present invention is high in selectivity, good in port matching characteristic and small in phase deviation.
Owner:NANJING NORMAL UNIVERSITY
Wide-stop-band three-mode dual-passband filter based on cross type multimode resonators
InactiveCN105206905ASimple structureEasy to process and integrateWaveguide type devicesDielectric substrateFeed line
The invention discloses a wide-stop-band three-mode dual-passband filter based on cross type multimode resonators. The wide-stop-band three-mode dual-passband filter comprises an input port feed line, an output port feed line, a first cross type multimode resonator, a second cross type multimode resonator, a dielectric substrate and a metal grounding plate. The first and second cross type multimode resonators are connected with each other through a metal through hole and are symmetry plane side loading type multimode resonators. The input port feed line, the output port feed line and the first and second cross type multimode resonators are arranged at the upper surface of the dielectric substrate. The metal grounding plate is arranged at the lower surface of the dielectric substrate. The input and output port feed lines include two parts of a 50ohm microstrip line conduction band and a feed line. The first cross type multimode resonator comprises two quarter-wavelength resonators and two symmetry plane loading units. The second cross type multimode resonator comprises two quarter-wavelength resonators and two symmetry plane loading units. The wide-stop-band three-mode dual-passband filter has characteristics of wide stop-band, high selectivity and low loss and is suitable for modern wireless communication systems.
Owner:NANJING UNIV OF SCI & TECH
Novel dual-passband filter coupler adopting double-layer slotted circular patch
ActiveCN111613857ASimple structureEasy to process and integrateCoupling devicesPower processingDielectric substrate
The invention discloses a novel dual-passband filter coupler adopting a double-layer slotted circular patch. The coupler comprises an upper dielectric substrate, a metal grounding plate and a lower dielectric substrate which are sequentially arranged in parallel from the top to the bottom, wherein the contours of the upper dielectric substrate, the metal grounding plate and the lower dielectric substrate coincide with one another; a top slotted circular patch, a first port feeder line and a second port feeder line are arranged on the upper surface of the upper dielectric substrate, and a bottom slotted circular patch, a second port feeder line and a third port feeder line are arranged on the lower surface of the lower dielectric substrate. When a signal is input from the first port, a signal output by the second port and a signal output by the third port are equal in amplitude and phase; when a signal is input from the fourth port, a signal output by the second port and a signal outputby the third port are equal in amplitude and opposite in phase. Compared with the prior art, the scheme has the advantages of simple structure, high Q value, high power processing capability and dual-passband performance.
Owner:南京智景融新能源科技有限公司
Dual-passband balance power division filter adopting double-layer circular patches
ActiveCN113381141ATake advantage ofSimple structureWaveguide type devicesFeeder lineDielectric substrate
The invention discloses a dual-passband balanced power dividing filter adopting double-layer circular patches. The filter comprises an upper dielectric substrate and a lower dielectric substrate, and is characterized in that a metal grounding plate is arranged between the upper dielectric substrate and the lower dielectric substrate; the top layer circular patch, a first input port feeder line, a second input port feeder line, a top layer first isolation port and a top layer second isolation port are arranged on the upper surface of the upper layer dielectric substrate; the lower surface of the lower dielectric substrate is provided with the bottom circular patch, a first output port feeder line, a second output port feeder line, a third output port feeder line and a fourth output port feeder line; and the metal grounding plate is provided with a slot line which is used for transmitting the resonance mode of the top circular patch to the bottom circular patch. The dual-passband balanced power dividing filter has very small size and more perfect functions, can be realized on a single PCB (Printed Circuit Board), is convenient to process and integrate, and has high common-mode rejection performance.
Owner:NANJING IND INST FOR ADVANCED INTELLIGENT EQUIP +1
Integrated substrate gap waveguide millimeter wave annular coupler based on multilayer packaging
The invention discloses an integrated substrate gap waveguide millimeter wave annular coupler based on multilayer packaging, which belongs to the electrical field, and is characterized in that three layers of media are constructed, the bottommost layer is a PMC layer of which the lower surface is coated with metal copper, a plurality of metal via holes are periodically arranged in the layer, the upper edge tightly abuts against a circular metal patch, and the lower edge is connected with the metal copper to form a mushroom-shaped EBG array; the middle layer is a layer of dielectric plate; the uppermost layer is a gap layer, the lower surface is printed with a hybrid ring coupling microstrip line, and the upper surface is coated with a layer of metal copper; the microstrip line comprises four sections of microstrip lines as ports, and seven sections of microstrip lines form a two-section hybrid ring; different ports are excited, and the bandwidth is enhanced to 50% through the two-section hybrid ring structure; and the metal copper on the uppermost layer and the mushroom type EBG array on the lowermost layer in the three layers of dielectric plates form a substrate gap waveguide, the working frequency band is distributed between 24 GHz and 40 GHz, and most of 5G millimeter wave frequency bands are covered. The antenna is low in transmission loss, compact in structure and easy to process and integrate.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Vivaldi antenna with notched characteristics
InactiveCN107181055ASimple structureEasy to process and integrateRadiating elements structural formsAntennas earthing switches associationDielectric substrateVivaldi antenna
The invention discloses a Vivaldi antenna with notched characteristics, which comprises a rectangular dielectric substrate (5) a metal grounding plate (4) attached to the lower surface of the dielectric substrate (5), and is characterized in that the metal grounding plate (4) is provided with a slot line structure (3), and the slot line structure (3) is located at a long axis of the dielectric substrate (5) and symmetric relative to the long axis of the dielectric substrate (5). The Vivaldi antenna further comprises an input port feeder (1) and a stepped impedance resonator (2) which are located at the upper surface of the dielectric substrate (5), wherein the stepped impedance resonator (2) is axisymmetric relative to the slot line structure (3) on the metal grounding plate (4), and two ends of the stepped impedance resonator (2) are electrically connected with the metal grounding plate (4); and the input port feeder (1) and the stepped impedance resonator (2) are parallel to a short axis of the dielectric substrate (5). The Vivaldi antenna with notched characteristics is simple in structure, high in radiation gain and good in directivity.
Owner:NANJING UNIV OF SCI & TECH
Wearable sliding-type static self-powered respiration monitoring device
ActiveCN108523893AEasy to process and integrateSimple and fast operationRespiratory organ evaluationSensorsEmbedded systemElectric energy
The invention provides a wearable sliding-type static self-powered respiration monitoring device. The monitoring device is applied to respiration monitoring during sleep of the human body and is characterized by comprising a sensing part and a wearable part, wherein the sensing part comprises two sliding-type frictional power generating units, the wearable part comprises inner and outer layers ofannular binding belts adjustable in size, the sliding-type frictional power generating units can convert mechanical energy produced during fluctuation of the thoracic cavity into electric energy to beoutput through electric signals. Compared with existing respiration monitoring devices, the respiration monitoring device does not need an external power supply, can produce electric signals itself and has the advantages of being easy to process and integrate, simple and convenient to operate, high in efficiency and excellent in precision.
Owner:ZHEJIANG UNIV
High-selectivity broadband anti-phase filtering power divider based on three-wire coupling
The invention relates to a high-selectivity broadband anti-phase filtering power divider based on three-wire coupling, which comprises a dielectric substrate and a circuit layer, wherein the lower surface of the dielectric substrate is provided with a metal grounding plate; the circuit layer is arranged on the upper surface of the dielectric substrate; the circuit layer comprises an input port feeder line, a branch knot loading resonator, a first output port feeder line, a second output port feeder line, an output port connecting line and a grounding resistor; during working, a signal enters from the input port feeder line, is coupled to the branch loading resonator in parallel through the two paths of quarter-wavelength open-circuit coupling lines to generate resonance, and is coupled and output through the first output port feeder line and the second output port feeder line after resonance; the reverse phase difference is generated by the terminal grounding of the first output port feeder line and the phase shift feeder line of the second output port feeder line, and the output port signal isolation is realized by loading a grounding resistor through the output port connecting line. The filter is simple in structure, flexible in design, high in selectivity, large in bandwidth and good in port matching and isolation.
Owner:JINLING INST OF TECH
Anti-phase Unequal Power Splitter Based on Parallel Coupling Structure
InactiveCN105591183BSimple structureEasy to process and integrateCoupling devicesCouplingLength wave
The invention discloses an anti-phase unequal power divider based on a parallel coupling structure. The anti-phase unequal power divider includes a rectangular medium substrate of which a lower surface is provided with a metal ground plate. An upper surface of the medium substrate is provided with an input terminal feed line, a first output terminal feed line, and a second output terminal feed line. A first parallel coupling structure and a first 1 / 4 wavelength transmission line are arranged between the input terminal feed line and the first output terminal feed line. A second parallel coupling structure and a second 1 / 4 wavelength transmission line are arranged between the input terminal feed line and the second output terminal feed line. A third 1 / 4 wavelength transmission line, a fourth 1 / 4 wavelength transmission line, and a resistor are also arranged between the first output terminal feed line and the second output terminal feed line. The resistor is connected to the ground plate on the lower surface of the medium substrate through a metal through hole in the medium substrate. The anti-phase unequal power divider has simple structure, low loss, high isolation, and small phase deviation.
Owner:NANJING UNIV OF SCI & TECH
Double-passband balance filter adopting double-layer circular patch
ActiveCN111613856ATake advantage ofSimple structureWaveguide type devicesDielectric substrateEngineering
The invention discloses a double-passband balance filter adopting a double-layer circular patch, which comprises an upper dielectric substrate and a lower dielectric substrate, wherein a metal grounding plate is arranged between the upper dielectric substrate and the lower dielectric substrate, a top metal plate of the upper dielectric substrate is provided with a top circular patch, a first inputport feeder line, a second input port feeder line, a top first slot line and a top second slot line, a bottom metal plate of the lower layer dielectric substrate is provided with a bottom circular patch, a first output port feeder line, a second input port feeder line, a bottom first slot line and a bottom second slot line, and the metal grounding plate is provided with a grounding plate first slot line and a grounding plate second slot line. One end of the input port feeder extends to the side edge of the dielectric substrate, and the other end of the input port feeder is tangent to the circular patch.
Owner:JIANGSU HOPERUN ZHIRONG TECH CO LTD
Integrated substrate gap waveguide four-arm circularly polarized antenna
PendingCN110838616AHigh gainHigh bandwidthRadiating elements structural formsAntennas earthing switches associationCircularly polarized antennaDielectric plate
The invention discloses an integrated substrate gap waveguide four-arm circularly polarized antenna, which comprises an upper dielectric plate, a lower dielectric plate and a spacing dielectric plate,wherein a first copper-clad layer is printed on the upper surface of the upper dielectric plate; a gap is formed in the first copper-clad layer; the lower surface of the upper dielectric plate is printed with a feed microstrip line, a quarter-wavelength impedance converter and a three-fourths-wavelength impedance matching line which are connected in sequence; the impedance matching line is bent into a ring shape from outside to inside; four antenna arms which are perpendicular to each other and are spaced by a quarter of wavelength are arranged on the impedance matching line; an impedance matching patch which is arranged opposite to the impedance converter and has the same size and an annular patch which is arranged opposite to the impedance matching line and has the same size are arranged in the gap; a second copper-clad layer is printed on the lower surface of the lower dielectric plate, round metal patches which are arranged periodically are printed on the upper surface of the lower dielectric plate, and a metal via hole is formed in each round metal patch. The antenna structure can be simplified, the antenna gain and the bandwidth are improved, and the axial ratio bandwidth performance is improved.
Owner:YUNNAN UNIV
A Highly Selective Dual-Passband Power Divider Filter
ActiveCN108682926BCompact structureEasy to process and integrateWaveguide type devicesDielectric substrateHigh isolation
Owner:NANJING NORMAL UNIVERSITY
A Three-pass Band Power Divider Filter Based on Multimode Fork Resonator
Owner:NANJING IND INST FOR ADVANCED INTELLIGENT EQUIP +1
A New Type of High Performance Dual-Passband Four Power Division Filter
ActiveCN109193087BCompact structureEasy to process and integrateCoupling devicesDielectric substrateEngineering
The invention discloses a novel high-performance dual-pass band four-power dividing filter, comprising a rectangular dielectric substrate with a metal ground plane on a lower surface, wherein an inputport feed line, a first output port feed line, a second output port feed line, a third output port feed line and a fourth output port feed line are arranged on an upper surface of the rectangular dielectric substrate; a first ring branch loading type multimode resonator is arranged between the second output port feed line and the input port feed line, and a second ring branch loading type multimode resonator is arranged between the fourth output port feed line and the input port feed line; a first isolation resistor is provided between the first coupling input line and the second coupling input line, a second isolation resistor is provided between the first coupling output line and the second coupling output line, and a third isolation resistor is provided between the third coupling output line and the fourth coupling output line. The invention has the advantages of compact structure, low loss, high selectivity, good isolation and good out-of-band rejection performance.
Owner:NANJING NORMAL UNIVERSITY
Putting sliding static self -supply energy respiratory monitoring device
ActiveCN108523893BEasy to process and integrateSimple and fast operationRespiratory organ evaluationSensorsThoracic structureMechanical energy
Owner:ZHEJIANG UNIV
A full-band absorbing dual-band bandpass filter with complementary duplex structure
ActiveCN112909461BNovel structureGuaranteed normal transmissionWaveguide type devicesBandpass filteringInterference (communication)
Owner:BEIJING UNIV OF POSTS & TELECOMM
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