31results about How to "Guaranteed RF performance" patented technology

The invention relates to a radio frequency connector and a manufacturing method thereof, which relate to the field of signal transmission and aims at requiring no brazing and no gold plating when the radio frequency connector is manufactured and ensuring the positioning precision and the packaging air tightness of the radio frequency connector. According to the technical scheme adopted by the invention, conductive sealing glass powder, the conductive sealing glass powder and an organic binder are mixed, granulation is carried out, and granulation powder is formed; according to the appearance of a radio frequency terminal, the granulation powder is manufactured into a conductive sealing glass perform; and the conductive sealing glass perform is placed between the radio frequency terminal and a shell and is heated to a sealing temperature, the conductive sealing glass perform is thus combined with the radio frequency terminal and the shell respectively. According to the radio frequency connector manufacturing method, through manufacturing the conductive sealing glass perform and heating the conductive sealing glass perform, the conductive sealing glass perform is in a melt state, the radio frequency terminal is thus sealed with the shell, and the method can ensure the air tightness and the radio frequency performance of the radio frequency connector, accurate positioning and high reliability.

The embodiment of the invention discloses a signal interference processing method and device, and a mobile terminal. The method is applied to the mobile terminal. The mobile terminal comprises a radiofrequency module and a touch module. The method comprises the steps of: obtaining radio frequency enable signals emitted by the radio frequency module and touch scanning signals of the touch module;and if the radio frequency enable signals and the touch scanning signals have signal overlapping on a time domain, the touch scanning signals are regulated to allow the touch scanning signals and theradio frequency enable signals to be staggered on the time domain. According to the embodiment of the invention, the touch scanning signals sent by the touch module are only needed to be regulated toeffectively avoid the signal overlapping of the touch scanning signals and the radio frequency enable signals on the time domain so as to avoid the interference problem caused by the simultaneous working of the radio frequency module and the touch module and ensure the radio frequency performance of the radio frequency module.

The invention provides an easy-to-bend flexible transmission line, which comprises metal grounds, a signal layer and a dielectric layer, wherein a plurality of metal grounds form a multilayer structure of the transmission line, the dielectric layer is filled among the plurality of metal grounds, the signal layer is embedded into the dielectric layer, and the top metal ground located on the top surface of the dielectric layer and the bottom metal ground located on the bottom surface of the dielectric layer are provided with buffer holes in the bending area. According to the transmission line provided by the invention, windowing copper reduction design is carried out in a bending area, so that on the premise of ensuring the radio frequency performance of a flexible transmission line, the flexible transmission line can complete required bending processing, and the process difficulty can also be reduced through copper reduction in the bending area; and the problems that a traditional flexible transmission line is large in resilience force and bending difficulty and inconvenient to bend are solved.

The present invention is a non-radio frequency test seat signal test system with a symmetrical tuning unit, which is applied to a test system without a radio frequency test seat; when in use, a radio frequency test probe, a symmetrical tuning unit and a test instrument module are used, and the radio frequency test probe connects the antenna The matching circuit is connected to the symmetrical tuning unit, the symmetrical tuning unit is connected to the test instrument module, the symmetrical tuning unit is used to match the antenna matching circuit, and a symmetrical two-port radio frequency path is formed between the radio frequency chip and the test instrument. The symmetrical tuning unit and the antenna matching circuit form a symmetrical radio frequency path, which ensures that the return loss of the two directions of the radio frequency path is very close, so as to achieve the purpose of ensuring the authenticity of the detection effect when detecting from one direction, and ensure the dual-port network of the entire radio frequency path Excellent RF performance, on the basis of reducing RF test sockets, reduces the operational complexity of impedance matching, saves adjustment time and verification time, and ensures the effectiveness of the detection effect.

The invention discloses a system and a method for achieving frequency band compatibility. The system comprises a PCB and a frequency band compatible circuit, wherein the frequency band compatible circuit comprises a transceiver, a central processor, an antenna, an antenna switch, a first duplexer, a second duplexer, a single-pole double-throw switch and two short-circuit welding pads, wherein both ends of the transceiver are connected with two output ports of differential output signals of the single-pole double-throw switch, both ends of a first differential input end in the single-pole double-throw switch are connected with two output ends of the differential output signals of the single-pole double-throw switch separately through one of the independent short-circuit welding pads, two ports of the first differential input end in the single-pole double-throw switch are connected with the first duplexer, two ports of a second differential input end in the single-pole double-throw switch are connected with the second duplexer, output ends of the two duplexers are connected with the antenna through the antenna switch, and the central processor is connected with the single-pole double-throw switch. The system and the method achieve coexistence of two frequency bands truly, and ensure the RF performance.

The invention discloses a low-cost radio frequency differential amplifier. The differential amplifier comprises an input balun, a differential radio frequency circuit, and an output balun, wherein the input balun is used for outputting an input radio frequency single-ended signal by converting the same into a balancing mode from an unbalancing mode by use of two sub-baluns so as to obtain a differential signal required by the differential radio frequency circuit; the differential radio frequency is used for amplifying the balanced radio frequency signal output by the input balun; and the output balun is used for outputting the balanced radio frequency signal, which is output by the different radio frequency circuit, by converting the same into the unbalancing through two sub-baluns. By use of the differential amplifier disclosed by the invention, the layout of the system is compact while the radio frequency performance of the circuit is guaranteed, the chip area around an active device is sufficiently utilized, and the cost is effectively lowered.

The invention discloses an electromagnetic wave control method and device, wherein the method includes: when an object is detected close to the antenna array, determining the phase adjustment mode of the radiation beam of each antenna unit in the antenna array, so that The phase of the radiation beam of each antenna unit is the target phase; wherein, the phase adjustment method includes phase adjustment and no phase adjustment; the radiation beams of the antenna units whose phase is the target phase are superimposed and synthesized to obtain A target electromagnetic wave in a predetermined direction. The present invention controls the direction of the radiation beam of each antenna unit in the antenna array, and then controls the direction of the superimposed and synthesized electromagnetic wave, so that the direction of the synthesized electromagnetic wave is far away from the human body, so as to realize the reduction of SAR without reducing the emission Power, to ensure the radio frequency performance, thereby ensuring the signal quality.

The invention discloses a power line and a household appliance therewith. The power line comprises a power line body, a wireless communication element and a plug. The power line body comprises a powerline harness and a communication line harness. The plug is connected with the power wire harness, and the wireless communication element comprises a housing with an accommodation cavity and a wireless communication module arranged in the accommodation cavity. The housing is arranged on the power line body, and the communication line harness extends into the accommodation cavity to be connected with the wireless communication module. A part of the power line harness is located in the accommodation cavity and is separated from the wireless communication module. According to the embodiment of the invention, the power line can protect the communication of the wireless communication element from being influenced by the electromagnetic radiation interference of the electric equipment, enables the communication of the wireless communication element to be stable and reliable, can enable the wireless communication element to have enough installation space, guarantees the radio frequency performance of the wireless communication element, improves the antenna efficiency of the wireless communication element, is lower assembly difficulty of the wireless communication element, and is high in operability.

The invention discloses an antenna device and an electronic device. The electronic device comprises a metal cell cover with a slit structure, and a plastic support structure arranged in the slit structure. The antenna device comprises a slit antenna body formed by being along a first edge, in contact with the top end face of the plastic support structure, of the metal cell cover. A connection part is arranged on the metal cell cover to divide the slit antenna body into two segments. The slit antenna body is short circuited with a grounding end through the connection part. The antenna device also comprises a first tuning part, a second tuning part and a feed part which are successively arranged between the connection part and the first end of the slit antenna body. The first tuning part is connected with the grounding end through a first switch matching circuit. The second tuning part is connected with the grounding end through a second switch matching circuit. The feed part is connected with a radio frequency front end through a spring sheet or a flexible circuit board. According to the invention, when multi-band reuse is achieved, radio frequency performance of each brand and light and thin performance of the electronic device can be ensured.

The invention discloses a mobile terminal. The mobile terminal comprises a shell, a printed wiring board, a metal frame, a first connector, a second connector and a first antenna, wherein the metal frame encircles the shell and comprises a first frame, a second frame and a third frame, the first frame is provided with a first gap, the first connector is connected with the first frame on the first gap, the second connector is connected with the third frame and a ground end of the printed wiring board separately, the first antenna comprises a first antenna main radiation body, a first part, a second part, a first inductor, a third part, a fourth part and a fifth part, the first part parallel to the first frame is connected with the first connector, the second part parallel to the third frame is connected with the first part, the first inductor is connected with the second part and the ground end of the printed wiring board separately, the third part is arranged under the second part and is parallel to the second part, one end of the third part is suspended, the fourth part parallel to the first part is connected with a second inductor and the third part separately, and the fifth part parallel to the first part is connected with the second inductor and a first feeding end of the printed wiring board separately. By the mobile terminal, the antenna cost is reduced, and the mobile terminal is convenient and flexible to debug. The invention also discloses an antenna of the mobile terminal.

The invention discloses a hybrid NFC antenna and a manufacturing method. The hybrid NFC antenna includes an ultra-thin antenna and a sub-antenna; the ultra-thin antenna includes a first polymer sheet and an antenna radiator printed on it; the antenna radiator includes an antenna port The auxiliary antenna includes a second polymer sheet and an antenna feeder printed on it; the auxiliary antenna is located above the antenna radiator, one end of the antenna feeder is connected to the antenna port, and the other end is connected to the main board of the mobile phone, and the auxiliary antenna and the ultra-thin antenna are connected to the antenna The connection between the feeder and the antenna port. The invention can reduce the overall thickness of the antenna under the premise of ensuring the radio frequency performance, and is more suitable for the structural design requirements of ultra-thin mobile phones, and the antenna is made less, and the aluminum printed circuit is used, which is better than the existing double-sided copper coating The cost of FPCB is 30% lower.