66results about How to "Easy to process and integrate" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention discloses a high-selectivity double-passband power dividing filter, comprising a polygonal dielectric substrate provided with a metal grounding plate on a lower surface thereof. An inputport feeding line, a first output port feeding line, a second output port feeding line, a first output coupling line and a second output coupling line are arranged on the upper surface of the polygonal dielectric substrate. The first output port feeding line and the second output port feeding line are close to two vertically-adjacent edges of the polygonal dielectric substrate. A branch-loading type multi-mode resonator is arranged between the first output port feeding line and the second output port feeding line. An isolation resistor is arranged between the first output coupling line and the second output coupling line. The high-selectivity double-passband power split filter is compact in structure, low in loss, high in selectivity, good in isolation and good in out-of-band rejection performance.

The invention discloses a three-pass band power dividing filter based on a multi-mode fork resonator, which comprises a dielectric substrate, a metal grounding plate is provided on the bottom surface of the dielectric substrate, and an input port feeder, a first output feeder and a second feeder are provided on the top surface. The output feeder, the input port feeder is located in the middle of the dielectric substrate, the first output feeder and the second output feeder are symmetrically arranged on both sides of the input port feeder; the input port feeder and the first output feeder are respectively provided with a first fork A three-mode fork resonator and a second fork-shaped three-mode resonator; a third fork-shaped three-mode resonator and a fourth fork-shaped three-mode resonator are respectively arranged between the input port feeder and the second output feeder.

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.

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.

The invention discloses a full-band absorption dual-band bandpass filter with a complementary duplex structure, which belongs to the electrical field; the overall structure is composed of a dual-band bandpass filter structure and a left-right symmetrical complementary dual-band stop absorption branch; the dual-frequency bandpass filter structure includes The coupling line c and the microstrip line s1 connected to it; the microstrip line s1 is respectively connected to the left and right complementary dual-band stop absorbing branches, and is also connected to the input port and output port; the complementary dual-band stop absorbing branch includes absorbing branches and ladder impedance Open-circuit stub; ladder impedance open-circuit stub includes series-connected microstrip lines s3 and s4; absorbing stub includes series-connected microstrip line s5 and grounding resistor R1; when the signal is input from the first port, the in-band signal is transmitted through the dual-band bandpass filter structure To the output port, the out-of-band signal is absorbed by the complementary dual-band band-stop absorption branch, and the current is converted into energy for dissipation through the resistance of the energy-dissipating element. The invention prevents unnecessary signals from being reflected into connected equipment and causing interference to the performance of the communication system.