38 results about "Wilkinson power divider" patented technology

According to one embodiment, a Wilkinson power divider / combiner (WPDC) circuit includes a pair of first differential ports including a Vin+ port and a Vin− port, a pair of second differential ports including a Vout1+ port and a Vout1− port, and a pair of third differential ports including a Vout2+ port and a Vout2− port. The WPDC circuit includes a first transformer winding having a first end coupled to the Vin+ port and a second end coupled to the Vin− port, a second transformer winding having a first end as Vout1+ port and a second end as Vout1− port, the second transformer winding magnetically coupled to a first portion of the first transformer winding, and a third transformer winding having a first end as Vout2+ port and a second end as Vout2− port, the third transformer winding magnetically coupled to a second portion of the first transformer winding.

Disclosed is an antenna having a plurality of radiator columns and an integrated phase shifter / calibration board. The radiator columns have radiator clusters that may be differentially phase to provide beam tilt. The input traces of each of the phase shifters is capacitively coupled to a Wilkinson power divider that sums the power of all the input signals, thereby providing a calibration function. The output traces of each of the phase shifters has a designated meander pattern that provides phase alignment for all the output signals to prevent phase mismatches between signals fed to the radiator clusters.

The application belongs to the field of satellite mobile communication, and specifically provides a wide-beam metal-resistant antenna for satellite communication to overcome the problem that communication is interrupted under the interference of a metal environment for the existing satellite communication antenna. The application adopts a design of laminated slot coupling feed, improves the back and forward radiation of the antenna through a metal reflector plate and a forward radiation plate to improve the gain, generates 90 degrees of self-phase shift through a Wilkinson power divider, feeds a rotationally symmetrical "H" type slot at the same time, introduces a metal aluminum ring to pre-compensate the metal environment, reduces the influence of the surrounding metal floor on the antenna, and the metal reflector plate and the conductive metal aluminum ring together form a magnetic dipole, which is complementary to the directional diagram of the feed plate as an electrode to widen the lobe and improve the gain at a low elevation angle. Furthermore, the application has the advantages of wide beam, good low-elevation circular polarization performance and metal resistance, and is more suitable for satellite communication in actual scenarios.

The invention discloses a reconfigurable broadband circularly polarized metasurface antenna based on liquid, which is composed of three parts of structures including a top metal metasurface layer, a middle liquid layer and a bottom feed source antenna part. The top-layer metal metasurface comprises a dielectric plate F4B and a radiation metal sheet; the middle liquid layer is of a hollow structure in which liquid can be injected, and the structure consists of a medium PDMS (Polydimethylsiloxane); the bottom feed source antenna sequentially comprises a metal grounding plate, a dielectric plate F4B and a Wilkinson feed network from top to bottom. Signals are input to the Wilkinson power divider from the microstrip line connected with the 50-ohm microstrip line, and are transmitted to the middle liquid layer and the top metal metasurface through the four coupling gaps on the metal grounding plate, and switching of radiation and scattering modes by the antenna is realized by switching liquid injected into the liquid layer.

Substantially equal mutual inductances between a primary coil and respective secondary windings of a secondary coil of a transformer with an integrated differential Wilkinson power divider or combiner help to ensure balanced outputs for the transformer. The primary coil and the secondary coil are substantially symmetric to provide a high coupling between the coils, and the secondary windings of the secondary coil are substantially symmetric to help provide the substantially equal mutual inductances. The secondary windings of the secondary coil cross over each other an equal number of times to further ensure balanced outputs for the transformer.

The invention discloses a TSV technology-based full-connection beam forming network miniaturization design method, and belongs to the technical field of wireless communication and radar systems, and the method comprises the steps: in the miniaturization process of equivalently replacing a transmission line into a T-type network, designing the T-type network through a transmission matrix analysis method based on the TSV technology, and obtaining a miniaturized transmission line; a miniaturized directional coupler, a Wilkinson power divider, an annular coupler and a T-shaped attenuator are designed; all the devices are assembled through transmission lines, and a network topology structure of the full-connection beam forming network is obtained; on the basis of a network topology structure, transmission lines of connecting devices are processed according to different layers by using a TSV technology, and a miniaturized full-connection beam forming network is obtained. According to the method, the problem of large circuit area occupied by a cross junction due to large area and high circuit complexity of a full-connection beam forming network device is solved, and the miniaturization design of the whole network is realized.

A power divider / combiner circuit may include a first port configured to receive a signal, a second port, and a third port. The circuit may include an unequal Wilkinson power divider / combiner circuit including a first node coupled to the first port, a second node coupled to the second port, and a third node. The unequal Wilkinson power divider / combiner circuit is configured to receive a signal at the first node and divide the signal to produce a first signal at the second node and a second signal at the third node. The circuit may include a configurable impedance transformation circuit coupled between the third node and the third port. The configurable impedance circuit is configured to provide a configurable phase shift and a configurable attenuation of the second signal to provide a selected power division ratio between the first signal at the second port and the second signal at the third port.

A substantially equal mutual inductance 120, 122, 520, 920 between a primary coil 114, 404, 514, 804, 914, 1104 and a respective secondary winding 116, 118, 516, 518, 519, 916, 918, 921, 923 of a secondary coil 308, 714, 10104 of a transformer 100, 400, 500, 800, 900, 1100 with an integrated differential Wilkinson power divider or combiner helps ensure that the transformer has a balanced output. The primary coil and the secondary coil are substantially symmetrical to provide high coupling between the coils, and the secondary windings of the secondary coil are substantially symmetrical to help provide the substantially equal mutual inductance. The secondary windings of the secondary coil cross each other for equal times to further ensure that the transformer has balanced output.

The invention provides a radio-frequency signal amplification circuit and electronic equipment, the radio-frequency signal amplification circuit comprises an amplifier and a Wilkinson power divider, a first port of the Wilkinson power divider is connected with the amplifier, a second port and a third port of the Wilkinson power divider are connected with the amplifier, and a third port of the Wilkinson power divider is connected with a fourth port of the Wilkinson power divider. One is connected with the 90-degree phase shifter and the filter in sequence, and the other one is connected with the filter and the 90-degree phase shifter in sequence.

A symmetric spiral configuration having portions of oppositely oriented negative traces (302, 1002) and positive traces (202, 902) provides a field cancellation effect in a Wilkinson power divider (100, 600, 700, 1100) (or combiner) wherein the magnetic field generated by the positive traces (202, 902) is substantially cancelled by the magnetic field generated by the negative traces (302, 1002). The geometry of the positive trace (202, 902) and the negative trace (302, 1002) is effective to produce an isolation inductor (126, 128, 626, 628, 632, 638, 642, 646, 726, 728, 732, 738, 742, 746). Some embodiments utilize a transformer (800) that includes a first positive input port (802) and a first negative input port (804), an amplifier (806), and a transformer (808) that includes an input shunt inductor (814) of the differential power divider as part of the transformer.

This invention provides a non-reciprocal power divider and an electromagnetic wave transmission device. The non-reciprocal power divider includes: a dielectric substrate; at least one Wilkinson power divider; the ports of the Wilkinson power divider serve as the radio frequency ports of the non-reciprocal power divider; the Wilkinson power divider is disposed on the top surface of the dielectric substrate, and each branch of the Wilkinson power divider includes a filter, the filter being composed of at least two resonators; the back surface of the dielectric substrate is provided with multiple varactor diodes, multiple signal feed circuits, multiple metallized vias, and multiple modulation ports; the modulation ports are used to receive modulation signals, each modulation port is connected to a metallized via through a signal feed circuit, one end of each varactor diode is connected to one end of a resonator through a metallized via, and the other end of each varactor diode is grounded. This invention achieves a non-reciprocal power divider without any magnetic material biasing, and has advantages such as integration with circuits.

Wilkinson power dividers (or combiners) include a first positive output terminal and a second positive output terminal connected to a positive trace in a first plane and a first negative output terminal and a second negative output terminal connected to a negative trace in a second plane spaced apart from the first plane, e.g., in different circuit layers, with minimal overlap and crossings of positive and negative portions of the traces near the midpoints of the traces. The positive and negative traces are substantially symmetric to one another, and cascading various ones of the power dividers disclosed herein enables implementation of N-way Wilkinson power dividers.

The utility model discloses an equal power division network feed differential antenna array, and relates to the technical field of microwaves and radio frequency. Comprising a feed network and a radiating antenna part, the feed network is of a three-layer structure, the middle layer is a slotted copper metal ground, the top layer and the bottom layer are of power division structures symmetrical about the middle layer, and an FR-4 dielectric substrate is arranged between the top layer and the bottom layer; the power division structure is composed of a transmission line and two stages of Wilkinson power dividers, and the radiation antenna part is composed of four dual-band quasi-yagi antennas with through holes and is connected with the power division structure through the through holes. The antenna array is uniform in power distribution, high in anti-interference performance, wide in working frequency band, reliable in connection, stable in performance and reasonable in size.

The invention belongs to the technical field of antennas and electromagnetic waves, and discloses a transmitting-receiving isolation improving method applied to a common-caliber phased-array antenna, which is characterized in that open-circuit band-stop branches with specific electrical length and characteristic impedance are loaded on the same layer of a feed structure of a traditional antenna unit, so that the feed structure can meet the working bandwidth requirement and can also meet the requirement of a common-caliber phased-array antenna. And suppression of out-of-band specific frequency band interference signals is satisfied. The feed structure of the antenna comprises but is not limited to a basic coupling bridge, a Wilkinson power divider, a T-shaped power divider and the like. The feed structure loaded with the open-circuit band-stop stub is beneficial to compact layout design of antennas of different frequency bands. The antenna unit with the out-of-band rejection characteristic can be used for design of a transceiving common-caliber receiving and transmitting antenna unit, miniaturization of air interface calibers of equipment in different communication scenes is achieved, and the integration degree of the equipment is improved.

The invention discloses a non-reflection band-pass filter based on a Wilkinson power divider and a rectangular substrate integrated waveguide resonator. According to the non-reflection band-pass filter, a complementary symmetrical structure is adopted, an isolation resistor on a transmission axis is used as an absorption resistor, and the non-reflection band-pass filter is different from a traditional reflected signal eliminating method. Due to the characteristics of the two paths of reflected signals, the phase difference is 180 degrees, mutual counteraction is achieved, and the mutual counteraction effect of the reflected signals is good. In the frequency selection process, a microstrip line is not directly used, the SIW technology is adopted, the resonant cavity is used as a transmission medium, compared with microstrip line transmission, the band-pass filter has higher power capacity and quality factor, and due to the design, the band-pass filter can work on a higher frequency wave band. The filter designed by the invention keeps very low profile height and is easy to process and produce.

The invention relates to a novel reflection-type analog pre-distortion circuit, and the circuit comprises a 90-degree bridge which is used for generating a first signal and a second signal, the phase difference of which is 90 degrees; the Wilkinson equal power divider is used for equally dividing the first path of signal into two paths of equal signals; the two multiplication reflection branches are used for generating two nonlinear reflection signals; the Wilkinson equal power divider is also used for synthesizing the two paths of nonlinear reflection signals into a first reflection signal, and the fixed reflection branch is used for reflecting the second path of signal to obtain a second reflection signal; and the 90-degree bridge is also used for performing vector synthesis on the first reflection signal and the second reflection signal to output a pre-distortion signal. The invention can form effective complementation with the nonlinear characteristic of the solid-state power amplifier, thereby improving the linearity of the solid-state power amplifier.

The application provides a power amplification module, which comprises a substrate made of a molybdenum-copper composite material and a power amplification unit mounted on the substrate, and parts of components of the power amplification unit are mounted on the substrate through a heat sink made of a copper-molybdenum-copper composite material, and the heat sink is sintered on the substrate through a soldering material; the power amplification unit comprises an input matching circuit, a power amplification circuit and an output matching circuit; the power amplification circuit comprises four; the output matching circuit comprises a first-stage output matching circuit, a second-stage output matching circuit and a third-stage output matching circuit; the first-stage output matching circuit comprises four; the second-stage output matching circuit comprises two first Wilkinson power dividers; the third-stage output matching circuit comprises a second Wilkinson power divider, two first feeding circuits and an output matching circuit. The power amplification module can not only reliably control the junction temperature of the power amplification circuit, but also improve the output power and efficiency of the power amplification module.

The invention discloses a metasurface array antenna with independently adjustable amplitude and phase. Aiming at the problems of serious amplitude and phase regulation coupling and low precision of the existing metasurface antenna, the invention provides an amplitude and phase independent adjustable unit formed by cascading a reflective attenuator, a reflective phase shifter and a 1-bit reconfigurable radiation structure. The attenuator adopts a PIN diode, continuous amplitude regulation and control from-1.5 dB to-25dB are realized, and the phase fluctuation is less than + / -5 degrees; the phase shifter adopts a variable capacitance diode to realize 4-bit (16-state) phase regulation and control, and is cascaded with the 1-bit phase of the radiation structure to form 5-bit (32-state) phase regulation and control, the coverage is 0-360 degrees, and the stepping is 11.25 degrees. Amplitude and phase are regulated independently and do not interfere with each other. A 1 * 8 array and a one-to-eight Wilkinson power divider are integrated, the overall profile is only 0.03 lambda 0, and the antenna has the advantages of being high in precision, wide in range, low in profile, low in cost and the like and is suitable for 5G / 6G communication, radar detection and beam forming systems.

The application discloses a kind of wideband low coupling dual-polarized dielectric resonator antennas based on dual-mode resonance and differential feed, including dielectric resonator, two pairs of orthogonal coaxial probe, first Wilkinson power divider, second Wilkinson power divider, first feed port and second feed port;Two pairs of orthogonal coaxial probe are inserted into dielectric resonator;Each pair of coaxial probe is connected with the two output ends of its corresponding Wilkinson power divider;First feed port excites a pair of coaxial probe to dielectric resonator feed by first Wilkinson power divider, and excites the horizontal polarization radiation mode in x-axis direction;Second feed port excites another pair of coaxial probe to dielectric resonator feed by second Wilkinson power divider, and excites the horizontal polarization radiation mode in y-axis direction;The application realizes compact structure, wideband, low coupling dual-polarized radiation mode, and each polarization further increases bandwidth by exciting two frequency points close to resonance mode.

The invention discloses a miniaturized one-to-five Wilkinson power divider based on a lumped element framework. A top metal layer, a dielectric substrate and a bottom metal layer are sequentially arranged from top to bottom. According to the invention, a distributed transmission line segment directly hooked with the working wavelength in the traditional design is thoroughly abandoned, and a pi-type / T-type network formed by the lumped inductor (L) and the capacitor (C) is creatively adopted for function replacement. Due to the fundamental structural change, the physical size of the circuit does not depend on the wavelength of the low-frequency signal any more, but is only determined by the size of the patch element and the wiring space. Therefore, on the premise of ensuring complete circuit functions, the overall size of the power divider is successfully reduced to 39.14 mm * 78.28 mm. Compared with a traditional microstrip line one-to-five power divider working in the same frequency band, the area is reduced by more than 80%, and key component support is provided for system-level miniaturization and high-density integration.

The invention provides a deblocking type broadband Wilkinson power divider and a design method, and belongs to the technical field of microwave radio frequency passive circuit devices. The power divider provided by the invention comprises a metal microstrip line structure, a dielectric substrate and a defected ground structure, the metal microstrip line structure comprises a shunt structure and a T-shaped resonant structure, and the metal structure is located at the top layer of the power divider; the dielectric substrate is used for placing the metal structure and the defected ground structure; the defected ground structure comprises a slot line structure, a slot line circle and a slot line circular ring; when an odd mode is excited, the central surface of the micro-strip slot line mixed structure is equivalent to an electric wall, the slot line structure is excited, and an electromagnetic field is divided into two paths of signals with equal amplitude and opposite phases after entering the defected ground structure, so that superposition cancellation is realized, and the effect is equivalent to an isolation resistor effect. According to the deblocking type broadband Wilkinson power divider and the design method provided by the invention, the processing cost is reduced, the circuit power capacity is improved, and the integration level of a system is improved.

The invention discloses a one-to-sixty-four-path unequal Wilkinson power divider based on a suspended stripline, which comprises a Wilkinson power division network of the suspended stripline, and the whole power division network adopts nine-order equal and unequal power division network cascading to reduce the network power distribution difference and improve the network power distribution precision. And a Teflon material is adopted to support the power division network. The power division network is placed in the open metal machining groove cavity, and the left and right metal cover plates and the top metal cover plate are fastened with the edge of the metal cavity through screws to form a closed metal cavity. Glass insulators are welded into the left and right metal cover plates, the external parts are connected with the standard flange SMA, and the internal parts are welded with the strip line output port. The invention has obvious advantages of low loss and high power capacity: an air strip line scheme is adopted to realize optimal performance. Tests show that the antenna has high power distribution precision, low loss and high power capacity within 9.3-9.5 GHz, and is suitable for phased array radar beam forming scenes.

The embodiment of the invention discloses a Wilkinson power divider and a communication device. The Wilkinson power divider comprises an input node, at least two output nodes, a first impedance unit coupled between the input node and a first intermediate node, a second impedance unit coupled between the input node and a second intermediate node, a first circuit unit coupled between the first intermediate node and at least one output node, and a second circuit unit coupled between the second intermediate node and at least one output node. And a second circuit unit coupled between the second intermediate node and the at least one output node. At least one of the input node, the first intermediate node and the second intermediate node is a frequency compensation node, the frequency compensation node is coupled with a resonant circuit, and the resonant circuit compensates frequency characteristics of an impedance unit and / or a circuit unit coupled with the frequency compensation node, so that the bandwidth of the power divider is improved.

A reconfigurable dual-band Wilkinson power divider device comprising: an input terminal; a first output terminal; a second output terminal; and a plurality of pi-shaped dual-band quarter-wavelength transmission line structures, each pi-shaped dual-band quarter-wavelength transmission line structure comprising: a coupled line with a first terminal and a second terminal, a first transmission line connected to the first terminal of the coupled line, a second transmission line connected to the second terminal of the coupled line, a first varactor diode connected to the first transmission line and to ground, and a second varactor diode connected to the second transmission line and to ground; wherein the pi-shaped dual-band quarter-wavelength transmission line structure is arranged symmetrically around a center point of the coupled line;wherein the pi-shaped dual-band quarter-wave transmission line structure is designed to operate simultaneously at two discrete operating frequencies; and wherein the capacitance of both the first varactor diode and the second varactor diode is variable by setting a bias voltage, such that by setting the bias voltage an upper operating frequency of the device is reconfigured.;

The invention discloses an ultra-wideband dual-polarization dielectric resonator antenna based on multimode resonance and two-stage Wilkinson differential feed. The ultra-wideband dual-polarization dielectric resonator antenna comprises a dielectric substrate, a cylindrical dielectric resonator, two pairs of coaxial probes, two groups of two-stage Wilkinson power dividers and two feed ports, the cylindrical dielectric resonator is arranged at the central position of the dielectric substrate; the two pairs of coaxial probes are symmetrically arranged in pairs along + / -x and + / -y directions by taking the center of the cylindrical dielectric resonator as an original point; and the two feed ports are respectively connected with the input ends of the corresponding two-stage Wilkinson power dividers and are used for carrying out differential feed on the corresponding coaxial probes and exciting a radiation mode polarized in the x-axis direction and a radiation mode polarized in the y-axis direction and orthogonal to the radiation mode. According to the invention, a dual-polarization radiation mode with a compact structure, a wide band and low coupling is realized, each polarization further increases the bandwidth by exciting a plurality of resonant modes with close frequency points, and low coupling is realized through differential feed and medium regulation field valley composite decoupling.

A Wilkinson power divider (100, 200, 300, 400) (or combiner) includes a first positive output (106, 306) and a second positive output (110, 310) connected to a positive trace in a first plane and a first negative output (108, 308) and a second negative output (112, 312) connected to a negative trace in a second plane spaced apart from the first plane, the first plane and the second plane are, for example, in different circuit layers with minimal overlap and intersection of positive and negative portions of the trace near a midpoint (222, 422) of the trace. The positive and negative traces are substantially symmetrical to each other, and cascading various of the power dividers disclosed herein enables implementation of an N-way Wilkinson power divider.

The application discloses a terahertz phased array antenna based on a circularly polarized antenna unit and belongs to the technical field of radio frequency front ends. The application comprises 16 circularly polarized antenna units integrated on a coplanar waveguide, 16 MEMS four-bit distributed phase shifters and 15 Wilkinson power dividers, is fed by a signal probe, and the signal probe is divided into 16 paths through the 15 Wilkinson power dividers and connected with the circularly polarized antenna units through the MEMS four-bit distributed phase shifters. The MEMS four-bit distributed phase shifters and the circularly polarized antenna units correspond to each other. The application can be applied to various application scenarios as a small-size radio frequency device. The power dividers, phase shifters and high-performance antenna units and other devices involved in the overall structure can work in the terahertz wave band and can be individually applied to other communication systems.

The application provides a quadrupole high-isolation MIMO array antenna, which comprises a dielectric substrate, a metal floor printed on the upper surface of the dielectric substrate and N feed networks on the lower surface, N is greater than or equal to 2, a decoupling baffle fixed on the upper surface of the dielectric substrate and N periodically arranged dual-polarized dipole radiating units, and the feed structure of the dual-polarized dipole radiating unit is connected with the output end of the feed network; the feed network comprises two Wilkinson power dividers, two pi-type attenuators connected with four output ends of each Wilkinson power divider, one Schumann phase shifter and three branch line couplers; when two input ends of one of the branch line couplers and the outer input ends of the other two branch line couplers are simultaneously fed, the linear polarization characteristics of 0°, 90°, -45° and 45° can be simultaneously realized on one dual-polarized dipole radiating unit connected with the output end of the feed network, and the defect of complex antenna structure in the prior art is solved.

According to one embodiment, a Wilkinson power divider / combiner (WPDC) circuit includes a pair of first differential ports including a Vin+ port and a Vin– port, a pair of second differential ports including a Vout1+ port and a Vout1– port, and a pair of third differential ports including a Vout2+ port and a Vout2– port. The WPDC circuit includes a first transformer winding having a first end coupled to the Vin+ port and a second end coupled to the Vin- port, a second transformer winding having a first end as Vout1+ port and a second end as Vout1- port, the second transformer winding magnetically coupled to a first portion of the first transformer winding, and a third transformer winding having a first end as Vout2+ port and a second end as Vout2- port, the third transformer winding magnetically coupled to a second portion of the first transformer winding.

The application belongs to the technical field of radio frequency devices, and particularly relates to a compact Wilkinson power divider based on a gallium arsenide IPD process, which comprises an input port Port1, an output port Port2 and an output port Port3, a first radio frequency signal assembly is connected between the input port Port1 and the output port Port2, a second radio frequency signal assembly is connected between the input port Port1 and the output port Port3, the first radio frequency signal assembly and the second radio frequency signal assembly are the same in structure, and are connected in parallel between the first radio frequency signal assembly and the second radio frequency signal assembly. The compact Wilkinson power divider based on the gallium arsenide substrate IPD uses small-sized and low-power consumption lumped elements, divides one radio frequency signal into two radio frequency signals according to certain equalization, and realizes the performance of an operating frequency band of 6.0GHz-15.0GHz, an insertion loss (IL) less than 2dB, an input / output return loss (RL) greater than 10dB, and a two-port isolation greater than 15dB.