5069results about "Coupling devices" patented technology

An electronic device assembly includes a cavity formed from two portions and includes a reflector configured to reflect wireless signals that lines the cavity. A first portion of the cavity is formed within a carrier substrate and a second portion of the cavity is formed by an electrically conductive structure bonded to the carrier substrate above the first portion. The second portion is encapsulated by molding material disposed on the carrier substrate. An antenna structure is disposed at one end of the cavity and oriented toward the reflector. The antenna structure is electrically coupled to an electronic device bonded to the carrier substrate that is also encapsulated by the molding material.

A waveguide antenna system, includes: an electromagnetic, EM, transition portion having a transition region having a signal feed interface and an open waveguide section, the EM transition portion configured to couple EM energy from the signal feed interface to a guided waveguide mode of EM energy to the open waveguide section via the transition region; and a leaky waveguide antenna portion configured and disposed to radiate electromagnetic energy received from the open waveguide section; wherein the EM transition portion is electromagnetically coupled to the leaky waveguide antenna portion, the EM transition portion being configured to support a transfer of electromagnetic energy from a signal feed structure to the leaky waveguide antenna portion.

The embodiment of the invention provides a base station antenna, and relates to the technical field of communication. The base station antenna comprises a housing, a phase shifter and a combiner. The shell is provided with combining cavities and phase shifting cavities, the two phase shifting cavities are arranged side by side in the first direction, the combining cavities are arranged on the same side of the two phase shifting cavities in the second direction in a stacked mode, the first direction is perpendicular to the second direction, and the size of the combining cavity in the first direction is larger than the size of any phase shifting cavity and smaller than the sum of the sizes of the two phase shifting cavities; the phase shifter comprises two phase shifting modules corresponding to the phase shifting cavities, each phase shifting module is arranged in the corresponding phase shifting cavity, and each phase shifting module is provided with a phase shifting network; the combiner is arranged in the combining cavity and provided with a combining network, and the combining network is connected with the two phase shift networks. According to the base station antenna provided by the embodiment of the invention, multi-frequency, miniaturization and integration are realized, the gain, radiation efficiency and sidelobe performance of the base station antenna are optimized, the feed network is simple, and the resonance phenomenon is avoided.

The invention belongs to the technical field of microwave passive devices, and discloses a millimeter wave duplex power divider based on a multilayer metal gap waveguide and a working method thereof, and the millimeter wave duplex power divider comprises a common channel, a low-frequency filtering power divider and a high-frequency filtering power divider; the input port of the common channel is used for being connected with an electromagnetic wave signal source, and the output end of the common channel comprises an upper output channel and a lower output channel. Wherein the first output channel is connected with the input port of the low-frequency filtering power divider, and the second output channel is connected with the input port of the high-frequency filtering power divider; the low-frequency filtering power divider and the high-frequency filtering power divider are stacked up and down and adopt double-layer metal gap waveguide structures; wherein a fourth-order resonant cavity is arranged in the double-layer metal gap waveguide structure so as to realize a duplex power division function; functions of a duplexer and a power divider are integrated, loss caused by machining and assembling errors is greatly reduced, and low insertion loss and high isolation between channels of the duplex power divider are achieved.

The invention relates to the technical field of wireless communication, in particular to a wide-stop-band filtering coupler based on a rectangular coaxial structure, which comprises a rectangular coaxial outer conductor upper cavity, an inner conductor circuit and a rectangular coaxial outer conductor lower cavity, and is characterized in that the inner conductor circuit is arranged between the rectangular coaxial outer conductor upper cavity and the rectangular coaxial outer conductor lower cavity through a medium supporting block; the inner conductor circuit comprises an input port, a straight-through port, a coupling port, an isolation port and a branch line coupler structure. Four ports of the branch line coupler structure are respectively in coupling connection with the input port, the straight-through port, the coupling port and the isolation port through a quarter-wavelength open-circuit parallel coupling line structure. The novel rectangular coaxial transmission line is adopted for design, so that the circuit has the advantages of the rectangular coaxial metal transmission line, the electromagnetic shielding structure enables the circuit not to be easily interfered by external electromagnetic wave signals, and the rectangular coaxial transmission line can control the impedance requirement by changing the proportion of the inner conductor and the outer conductor according to different design requirements.

A quadrature coupler includes four ports, four inductors, and six capacitors. The first through third capacitors are coupled in series between the first and fourth ports. A first intermediate node is between the first and second capacitors. A second intermediate node is between the second and third capacitors. The fourth through sixth capacitors are coupled in series between the second and third ports. A third intermediate node is between the fourth and fifth capacitors, and a fourth intermediate node is between the fifth and sixth capacitors. The first inductor is coupled between the first and second ports. The second inductor is coupled between the first and third intermediate nodes. The third inductor is coupled between the second and fourth intermediate nodes. The fourth inductor is coupled between the fourth and third ports. Variable tuning networks may be coupled between the first and fourth ports and the second and third ports.

The embodiment of the invention provides a gap waveguide cavity filtering power divider, and belongs to the technical field of filtering power dividers, the gap waveguide cavity filtering power divider comprises a device body, a first slot, at least two second slots and a cover plate, the device body is provided with an input waveguide interface and at least two output waveguide interfaces; the first slot is arranged on the device body, and the first slot is connected with the input waveguide interface; the at least two second open slots are formed in the device body, the second open slots are connected with the output waveguide interfaces in a one-to-one correspondence mode, the first open slots are connected with the second open slots respectively, and the opening directions of the first open slots and the second open slots are located on the same side of the device body; the cover plate is arranged on the device body, and is configured to define a first waveguide resonant cavity with the first slot and define a second waveguide resonant cavity with the second slot. The gap waveguide cavity filtering power divider provided by the embodiment of the invention is simple in structure, can reduce the insertion loss, and has better stop-band performance.

The invention discloses a Ka-band waveguide three-way power divider, which belongs to the technical field of microwave and millimeter waves, and is characterized in that a combining port is formed in the front side wall of a shielding box, and three distribution ports are formed in the rear side wall of the shielding box; a coplanar magic T equal power divider, a coplanar magic T equal power combiner, a branch waveguide unequal power divider, an L-shaped waveguide, a Z-shaped waveguide and a half waveguide-full waveguide gradual change structure are arranged in the shielding box. Wherein the coplanar magic T equal power divider comprises an E-T junction waveguide cavity, two equal branch waveguide cavities, a microstrip probe and a power resistance load, and outputs two paths of signals with equal amplitude and opposite phases; the branch waveguide unequal power divider comprises a four-branch waveguide directional coupler and an inclined-wedge-shaped waveguide matching load, and the output power ratio of a straight-through output port to a coupling output port is 2: 1. The filter has the advantages of being symmetrical in structure, good in amplitude and phase consistency, small in insertion loss, good in port standing wave and high in isolation degree.

The invention provides an adjustable power distribution circuit capable of realizing any polarization mode, the adjustable power distribution circuit is positioned between a radio frequency circuit and at least one antenna assembly, the adjustable power distribution circuit comprises an input signal part, at least two signal control parts, a processing unit and at least one orthogonal coupling circuit, the input signal part can convert a radio frequency signal from the radio frequency circuit into a plurality of corresponding input signals and transmit the input signals to each signal control part, each signal control part can convert the input signals into corresponding control signals according to a processing instruction of the processing unit and then transmit the control signals to the orthogonal coupling circuit, and the orthogonal coupling circuit transmits the control signals to the radio frequency circuit. And the orthogonal coupling circuit generates two output signals with a phase difference of 90 degrees, and transmits the output signals to the antenna assembly. Therefore, the adjustable power distribution circuit can enable the antenna assembly to form a linear polarization mode, a circular polarization mode or an elliptical polarization mode in any direction according to actual requirements of products.

The invention discloses a waveguide duplexer for a dual-band probe and application. The waveguide duplexer comprises a common end waveguide port, a D-waveband standard waveguide port, a G-waveband standard waveguide port, a non-standard waveguide channel of a common end, a stepped transition structure from a non-standard waveguide to a ridge waveguide, and a T-shaped connection structure among a high-frequency channel, a low-frequency channel and a common end channel. The invention discloses an impedance matching structure for transition from a connection structure to a low-frequency channel, the low-frequency channel, a transition structure from the low-frequency channel to a D-band standard waveguide, a high-frequency channel and a transition structure from the high-frequency channel to a G-band standard waveguide, and relates to the technical field of microwave radio frequency testing. The transition structure from each channel to the standard waveguide of the corresponding wave band provides an interface connected with other devices or equipment, and has the good channel transmission characteristics of low loss, good isolation between channels and the like, and as most structures adopt the ridge waveguide design, the working bandwidth is wide and the device structure is compact on the premise of large power capacity.

The invention discloses an orthogonal directional coupler and a microwave system based on a micro-coaxial technology, the orthogonal directional coupler comprises a metal outer conductor, an upper inner conductor and a lower inner conductor, the upper inner conductor and the lower inner conductor are suspended in the metal outer conductor through a periodic medium support loading structure; the upper inner conductor and the lower inner conductor serve as two identical micro coaxial coupling lines to be cascaded, the micro coaxial coupling lines are symmetrical multi-stage impedance stepped couplers, each micro coaxial coupling line is provided with n coupling units, the coupler structure is symmetrical about the center coupling unit, the upper inner conductor and the lower inner conductor are overlapped in the axial direction at the center coupling unit, and the upper inner conductor and the lower inner conductor are overlapped in the axial direction at the center coupling unit. The upper inner conductor and the lower inner conductor extend from the center coupling unit to the two ends, the upper inner conductor and the lower inner conductor deviate from the center to the two sides, and the closer to the coupling units at the two ends, the larger the offset is; the ultra-wideband orthogonal antenna can work in the frequency range of 5 GHz to 100 GHz, the return loss is superior to 15 dB, the phase change is smaller than 5.5 degrees, the directivity is superior to 10 dB, and the ultra-wideband orthogonal antenna can be used for generating ultra-wideband orthogonal signals.

The invention discloses a radio frequency vertical transition structure, and relates to the technical field of electronic components. In three stacked structures from top to bottom formed by multiple layers of stacked aluminum nitride ceramic circuit substrates, a microstrip line is arranged on the first stacked structure, a strip line is clamped in the second stacked structure, and a central vertical via hole and surrounding quasi-coaxial metal through holes are formed in the first stacked structure and the second stacked structure. A vertical interconnection center conductor is arranged in the center vertical via hole, the microstrip line and the strip line are connected through the vertical interconnection center conductor, a microstrip line-vertical transition-strip line conversion structure is formed, a conical air cavity is formed in the position, corresponding to the vertical transition part, of the third stacking structure, and the conical air cavity and the vertical transition part form a resonance effect; and ultra-low loss of vertical interconnection can be realized.

Embodiments disclosed herein include an apparatus that includes a radio frequency (RF) power supply, and a power splitter electrically coupled to the RF power supply. In an embodiment, the apparatus includes a plurality of impedance matches electrically coupled to the power splitter, where the power splitter is configured to split RF power from the RF power supply in order to supply the RF power to each of the plurality of impedance matches. In an embodiment, the apparatus further includes a plurality of chambers, wherein each chamber is electrically coupled to a different one of the plurality of impedance matches.

A device comprises a superconducting quantum circuit comprising a coupler which is coupled to a first quantum bit and a second quantum bit. The coupler comprises a tunable coupler and a fixed coupler. The coupler is configured to operate in a first mode to suppress coupling between the first quantum bit and the second quantum bit, when the tunable coupler is tuned to have a first frequency which corresponds to a fixed frequency of the fixed coupler. The coupler is configured to operate in a second mode to enable coupling between the first quantum bit and the second quantum bit, when the tunable coupler is tuned to have a second frequency which is different from the fixed frequency of the fixed coupler.

A system for wireless power transfer (WPT) is described. The WPT system may be used for charging of electric vehicles or other mobile platforms. The WPT system includes a gap waveguide base including a conductive waveguiding structure and a bandgap structure along at least the lateral sides of the waveguiding structure. The WPT system also includes a charging plate separate from the gap waveguide base. The charging plate includes a conductive plate having a receiving structure for receiving the electromagnetic field from the gap waveguide base through an air gap. The disclosed WPT system enables propagation of an electromagnetic field through the air gap, including electromagnetic fields in the very high frequency (VHF) band.

The invention discloses a negative group delay system based on SSPP, and belongs to the technical field of microwave communication. A fundamental mode negative group velocity is innovatively generated based on an artificial surface plasmon SSPP, and an SSPP system with negative group delay is realized. The system comprises two parts, namely an amplifier circuit and an SSPP waveguide with a negative group delay unit. The SSPP waveguide with the negative group delay characteristic comprises two coplanar waveguide parts, two transition parts and an SSPP waveguide part, the SSPP waveguide part comprises a unit for generating negative group velocity and a plurality of basic units, and further comprises a microwave dielectric substrate. The amplifier is composed of an amplifier chip, a peripheral capacitor inductor of the amplifier chip and a direct-current power supply. An input signal passes through the system, and advanced transmission of the signal can be realized. The problems of narrow bandwidth, large loss and non-adjustable structure in the prior art are effectively solved, and the antenna has wide application prospects in the fields of 5G communication, radar signal processing, array antenna systems and the like.

Improved waveguides, transitions, and conductors for propagating electromagnetic energy. A device includes a waveguide port, two or more coaxial waveguides, and a transition disposed between the waveguide port and the two or more coaxial waveguides. The transition combines or divides electromagnetic energy propagating between the waveguide port and the two or more coaxial waveguides.

The invention belongs to the technical field of communication, and particularly relates to an ultra-wideband miniaturized Vivaldi antenna. The antenna comprises a dielectric substrate, wherein the upper surface of the dielectric substrate comprises a main body Vivaldi antenna, four resistors, two rectangular metal patches and an artificial surface plasma, wherein the main body Vivaldi antenna is provided with an exponential gradually-changed slot; a feed network is arranged on the lower surface and comprises six impedance conversion microstrip transmission lines, a fan-shaped transmission line and a circular groove; the main body antenna and the dielectric substrate are placed in a centered alignment manner, the four resistors are placed at the tail end of the main body antenna, and the rear sides of the resistors are connected with the two rectangular patches; the artificial surface plasma is placed in the main body antenna gradual change gap; and the multi-section impedance transformer and the microstrip-to-slot line structure of the feed network are aligned with the circular slot of the main body antenna. According to the invention, the ultra wide band, miniaturization and high radiation gain are realized by designing the main body antenna, slotting the edge, loading the resistor, carrying out the artificial surface plasma and the like. The working frequency band of the antenna ranges from 0.2 GHz to 18 GHz, and the antenna has the characteristic of miniaturization.

The invention discloses a conversion device for packaging a chip into a waveguide, a radio frequency device and a radar device. The conversion device is a transition structure for packaging the chip into the waveguide, which is simple in structure, low in loss and wide in impedance bandwidth. A conventional E-shaped patch conversion device has a gap, and the processing error of the gap can cause the problem of frequency offset. The conversion device has the characteristic of a wider band under the condition that the characteristic of low loss is guaranteed, RF performance deterioration caused by the design of a too narrow gap and gap processing errors is avoided, and the RF performance of a transition structure from chip packaging to waveguide is guaranteed.

The utility model discloses an annular megawatt-level power combiner, which comprises two groups of N-path coaxial waveguide power combiners for realizing N-in-one and one group of 2-path power combiners for realizing 2-in-one, each group of N-path coaxial waveguide power combiners comprises N coaxial input ports, N waveguide tubes and N-1 waveguide elbows; the N coaxial input ports are respectively and correspondingly arranged on the N waveguide tubes, and every two waveguide tubes are connected through a waveguide elbow, so that each group of N coaxial waveguide power combiners form a semi-ring structure; the output ends of the two groups of N-path coaxial waveguide power combiners are connected with the input end of the two-path power combiner, and a twisted waveguide is additionally arranged at the output end of the two-path power combiner, so that the output end of the two-path power combiner rotates by 90 degrees to form the output end of the annular megawatt-level power combiner.

The invention discloses an ultra-wideband balancer applied to high-power microwave measurement and a manufacturing method and device. The ultra-wideband balancer comprises a thick slot line layer, a microstrip line dielectric plate and a microstrip line layer, wherein the microstrip line dielectric plate and the microstrip line layer are stacked on one side of the thick slot line layer in the second direction, and the microstrip line layer is provided with an output port; the first input port and the second input port are respectively connected with an SMA connector, the phase difference of input signals of the two SMA connectors is 180 degrees, and the output port is connected with an SMA connector; a resonant cavity and a thick slot line resonator are formed between the first thick slot line structure and the second thick slot line structure, and the thick slot line resonator and the microstrip line layer form electromagnetic coupling, so that an input signal which is input by the first input port and the second input port and has a phase difference of 180 degrees is output from the output interface as an anti-phase microwave synthesis signal; the ultra-wideband balancer has larger power capacity, the problem that the power capacity is limited due to the fact that the slot line is too thin is solved, and the ultra-wideband balancer applied to high-power microwave measurement has larger power capacity.

The invention relates to the technical field of adjustable power dividers, in particular to an adjustable power divider matched with any port impedance, which comprises a transmission line structure power divider used for dividing an input signal into multiple paths for output; the input ends of the second impedance matching networks are connected with the output end of the transmission line structure power divider; wherein the second impedance matching network comprises an adjustable capacitor and an inductance element, and the second impedance matching network dynamically matches the impedances of different output ports by adjusting the capacitance value of the adjustable capacitor without changing the structural parameters of the transmission line. According to the adjustable power divider matched with the impedance of any port, the impedance matching networks which are formed by the adjustable capacitors and are connected in parallel are introduced into the output end of the power divider, real-time matching of different load impedances can be achieved only by adjusting capacitance values of the capacitors, a transmission line does not need to be redesigned or an isolator does not need to be additionally arranged, and the adjusting complexity is remarkably reduced.

The present application discloses a waveguide adjustable coupler and its adjustment method, which belongs to the field of microwave. The coupler adopts two back-to-back waveguide bridges, and realizes the adjustable coupling amount of the waveguide coupler by cooperating with the tuning screw to tune the phase. The coupling amount can be adjusted continuously, and at the same time, good echo characteristics and isolation characteristics can be guaranteed; and the tuning screw is tuned at the empty waveguide, and the size space is large, so it can work in the millimeter wave frequency band; further, the waveguide is split from the E surface, and the narrow side of the waveguide is opened with a threaded hole, and the adjustment screw is on the front of the product, which is convenient for debugging and manufacturing.

A power amplifier includes a 3-dB coupler which splits a first signal into a second signal and a third signal lagging behind the second signal by 90°, a carrier amplifier, a peak amplifier, and a hybrid coupler. The carrier amplifier amplifies the second signal and outputs a fourth signal when the first-signal power level is a first level or higher. The peak amplifier amplifies the third signal and outputs a fifth signal when the first-signal power level is a second level or higher, which is higher than the first level. The hybrid coupler includes a first transmission line receiving the fourth signal at its first terminal, and a second transmission line receiving the fifth signal at its first terminal and being open at its second terminal. The first transmission line outputs, from its second terminal, an amplified first signal obtained by combining the fourth and fifth signals.

To provide a component for millimeter wave communication.SOLUTION: Disclosed herein are a component for millimeter wave communication and a related method and system.SELECTED DRAWING: Figure 5A

The invention relates to the technical field of wireless communication, and provides a coupler which comprises a substrate layer, a buried oxide layer, a first metal layer, a second metal layer and a third metal layer which are sequentially stacked and fixed. A main transmission line is formed on the third metal layer, the main transmission line is provided with a signal input end and a signal output end, the signal input end is used for accessing a radio frequency signal, and the signal output end is used for accessing an antenna; an auxiliary transmission line is formed on the first metal layer, the auxiliary transmission line is provided with a coupling end and an isolation end, and the main transmission line and the auxiliary transmission line form partial coupling and are coupled and output through the coupling end; the coupler further comprises a substrate, a monitoring circuit, a control circuit and an impedance matching circuit. The monitoring circuit is used for monitoring radio frequency signals output by the power amplifier, and the radio frequency signals are fed back to the power amplifier through the monitoring circuit after being subjected to impedance matching through the impedance matching circuit. The coupler disclosed by the invention is high in power amplifier monitoring precision and good in reliability.

The disclosure relates to a planar balun structure for routing millimetre-wave radar signals. Example embodiments include a planar balun structure (200) for routing millimetre-wave radar signals, the balun structure (200) comprising: a single-ended side (201); a differential side (203); a half-wavelength path (204) connecting the differential side (203) to the single-ended side (201), wherein the half-wavelength path (204) surrounds the single-ended side (201).

A vertically-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: first and second slots, and a metal flooded ground plane, first and second antenna PCBs forming four dipole pairs, the first and second antenna PCBs mounted to the host PCB, respective first to third ground connection fillet tabs, the first and second tabs being on an opposite side of the host PCB from the third tab, the first to third tabs being on a same side of its antenna PCB, an amplitude taper on each antenna PCB at transitions between the host and antenna PCBs, including: a first transmission line splitting off into a second transmission line and a third transmission line, the second transmission line feeding two antennas to form one dipole pair, the third transmission line stepping down using a quarter-wave transformer, and a radio frequency (RF) connector to receive a power supply.

The invention discloses a multi-mode circularly polarized OAM (orbital angular momentum) filtering antenna based on an artificial surface plasmon. According to the antenna, the SSPP leaky-wave antenna and the HMSIPW filter are integrated, so that efficient emission of multi-mode OAM beams is realized, and the antenna has low axial ratio, high gain and good directional diagram matching performance; the SSPP leaky-wave antenna is composed of an Archimedes spiral line type SSPP waveguide and annularly distributed patches, wherein the SSPP waveguide realizes accurate regulation and control of dispersion characteristics through the combination of periodic sawtooth comb lines and uniform spiral lines; the HMSIPW filter is composed of a dielectric substrate layer, a metalized through hole and a gradient rectangular structure, impedance matching of a micro-strip and double lines is achieved, insertion loss is reduced, and radiation performance is improved. Compared with a traditional design, a filtering function is integrated, higher harmonic radiation and low-purity high-mode OAM are inhibited through the overall design, and selectivity and radiation energy uniformity are improved.

The invention discloses an omnidirectional broadband high-gain rectification antenna which comprises an antenna unit radiation structure, an antenna unit radiation patch, an upper dielectric plate, a first rectification circuit, a second rectification circuit, a metal plate, a lower dielectric plate and an antenna unit feed structure. Wherein the first rectifying circuit and the second rectifying circuit are both printed on the upper surface of the upper-layer dielectric plate; the first rectifying circuit is connected with the first port of the antenna unit and is used for receiving radio frequency energy in the environment; and the second rectifying circuit is connected with the second port and the third port of the antenna unit and is used for receiving radio frequency energy from the fixed radio frequency source. The antenna can be applied to radio frequency energy collection and wireless energy transmission at the same time, and has the characteristics of omnidirectional broadband and high gain. The antenna can be widely applied to the field of microwave rectification antennas.