37 results about "Microstrip circuits" patented technology

The invention relates to the field of microwave technology and electronic devices, and particularly discloses a surface-mounted microstrip circulator with a shielding cavity, which comprises a shielding body provided with six caulking grooves uniformly distributed at intervals along the circumferential direction, the shielding cavity is formed on the shielding body, and a partition plate is arranged in the shielding cavity to divide the shielding cavity into an upper cavity and a lower cavity which are relatively isolated; the gyromagnetic ferrite is arranged in the lower cavity, the gyromagnetic ferrite is fixedly connected to the partition plate, and the corners of the gyromagnetic ferrite are correspondingly embedded into the caulking grooves; the microstrip circuit is arranged below the gyromagnetic ferrite, and the microstrip circuit is provided with three ports; three conductive connecting bodies, wherein each conductive connecting body is correspondingly and electrically connected with each port; the permanent magnet is arranged in the upper cavity and is used for providing a bias magnetic field for the gyromagnetic ferrite; and the cover plate is connected to the shielding body so as to package the permanent magnet in the upper cavity. Therefore, electromagnetic field distribution can be optimized, high-order mode and spurious resonance can be effectively suppressed, and good rigidity and heat dissipation capability can be achieved.

The invention discloses a resonance regulation and control system based on symmetry control. The resonance regulation and control system comprises a low-symmetry metal spiral structure and an excitation microstrip circuit. The low-symmetry metal spiral structure is composed of four metal spiral arms, and the four metal spiral arms have two different lengths. The excitation microstrip circuit sequentially comprises a metal strip, a dielectric substrate layer and a metal ground plane; the resonator introduces an electromagnetic resonance mode excited by a first-order current through the asymmetric design of a low-symmetry metal spiral structure, and realizes the regulation and control of resonance characteristics.

The invention discloses a high-performance broadband band-stop filter, and relates to the technical field of filters, and the filter comprises a microstrip circuit and a shielding cavity. The microstrip band-stop filter is composed of a novel spiral stepped impedance resonance unit and cascade transmission lines with different impedances, and in order to reduce the area of the filter, a spiral low-impedance structure of the resonance unit and a main transmission path are bent. The filter has the advantages that in order to suppress spurious coupling and surface waves introduced by the spiral structure and expand the upper passband, the parasitic conductor sheets are introduced between the resonance units, miniaturization of the filter is achieved, and the comprehensive high performance of the wide upper passband, high suppression depth and low insertion loss is obtained.

The utility model provides a three-frequency microstrip combiner with a power division network, which comprises a dielectric substrate provided with ports. The copper-clad layer is arranged on the lower surface of the dielectric substrate; the microstrip circuit is arranged on the upper surface of the dielectric substrate and electrically connected with the port, the microstrip circuit comprises a low-frequency shunt, an intermediate-frequency shunt and a high-frequency shunt, the high-frequency shunt is connected with the port and the intermediate-frequency circuit, and the intermediate-frequency circuit is connected with the low-frequency circuit; wherein a signal is input to the high-frequency shunt through the port, and is shunted to the intermediate-frequency shunt and the low-frequency shunt through the high-frequency shunt. According to the utility model, the low-frequency shunt, the intermediate-frequency shunt and the high-frequency shunt are combined to form the microstrip network, so that the requirement of a three-frequency combiner antenna can be met, the size of the combiner is smaller due to three-frequency combination, and the production cost of the combiner is effectively reduced.

A PIN diode electrically controlled attenuation circuit comprises a radio frequency main link and a direct current bias circuit, the positive electrode of a PIN diode D1 is connected with the negative electrode of a PIN diode D2 through a microstrip circuit 1, and the negative electrode of the PIN diode D1 is connected with one end of a capacitor C1; the positive electrode of the PIN diode D4 is connected with the negative electrode of the PIN diode D3 through the microstrip circuit 4, and the negative electrode of the PIN diode D4 is connected with one end of the capacitor C2; the positive electrode of the PIN diode D2 is connected with one end of the microstrip circuit 2, the positive electrode of the PIN diode D3 is connected with one end of the microstrip circuit 3, and the other end of the microstrip circuit 2 is connected with the other end of the microstrip circuit 3; a driving current Ic is connected with one end of a capacitor C3 and one end of a resistor R6, the other end of the resistor R6 is connected with one end of an inductor L4, the other end of the inductor L4 is connected to one end of an inductor L3 and one end of a capacitor C4, the other end of the capacitor C3 and the other end of the capacitor C4 are respectively grounded, the other end of the inductor L3 is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with the other end of the microstrip circuit 2 and the other end of the microstrip circuit 3. The circuit is simple, the attenuation dynamic range is enlarged, and attenuation stability is improved.

The application discloses a passive and active hybrid circuit capable of reconstructing four microwave functions, wherein the resistance, the capacitance and the transistor of the upper layer are reasonably placed on the microstrip line, and are made on the upper surface of the intermediate dielectric layer together with the PIN diode; the lower surface of the dielectric layer is connected with the metal grounding surface, and the size of the metal grounding surface is completely consistent with the size of the lower surface of the dielectric layer. Through the control of the forward and reverse voltage of the PIN diode, the conduction and the disconnection of the diode can be realized, the on-off of the microstrip circuit can be realized, and the function reconstruction of the device can be realized; the function reconstruction device comprises four functions, which are respectively an antenna, a filter, a power amplifier and a mixer, and the filter is a 3-order band-pass filter; the function reconstruction device has the advantages of compact structure, high port multiplexing rate, wide application range, high integration degree, quick switching among the four functions, and independent working in time-sharing mode without affecting each other.

The utility model belongs to the microwave device technical field discloses a kind of microwave multilayer board intervertical interconnection circuit structure, including cavity, microwave multilayer board and radio frequency glass insulator;Microwave multilayer board is fixed in the two sides of cavity, glass insulator is set on the extension structure parallel to microwave multilayer board in cavity geometric center, and microwave multilayer board forms air coaxial structure, for being connected with microstrip circuit by bonding mode and realizing the matching transmission of microwave signal, the vertical interconnection of microwave multilayer board radio frequency circuit is completed.The utility model forms air coaxial structure between radio frequency glass insulator and microwave multilayer board to realize circuit matching, more simple than prior art using circuit mode matching.And gold wire bonding mode can realize automation assembly and improve assembly efficiency.

The utility model relates to microstrip circuit technical field discloses a kind of microstrip circuit and radio frequency coding device based on multimode radio frequency coding, including the phase-shift coding unit being connected between quadrature power divider and combiner, phase-shift coding unit includes the absorption modal microstrip line for modal coding, positive modal microstrip line and negative modal microstrip line, the coding modal needed is selected by modal selection switch, wherein, positive modal microstrip line is straight-through microstrip line, output phase is synchronous with input phase, terminal short circuit line is also connected on straight-through microstrip line, two sections are set apart in terminal short circuit line, and it is L type bending structure, the bending section of two L type bending structures is parallel with positive modal microstrip line, and opposite direction is oriented.The utility model can effectively reduce the dispersion effect of straight-through microstrip line in wide frequency band by setting terminal short circuit line on the straight-through microstrip line of positive modal microstrip line, and improve broadband performance.

This invention discloses a suboctave band equalization structure and a method for optimizing in-band flatness based on it, relating to the technical field of microwave circuits. The suboctave band equalization structure consists of a 50-ohm microstrip line, an absorption resistor, and a high-impedance line. The high-impedance line employs an S-shaped bend structure to reduce volume, and the absorption resistor's geometric dimensions are adjusted to precisely control the equalization depth. This invention utilizes the transmission characteristics of a resonator exhibiting high insertion loss at the center of the band and gradually decreasing insertion loss at both sides when the fundamental frequency reaches the second resonant frequency. This complements the transmission characteristics of a filter, which has low insertion loss in the center of the passband and gradually increasing insertion loss at both sides. This application can significantly improve in-band flatness by physically canceling passband edge losses through passive microstrip circuits while ensuring high matching performance with return loss better than -20dB. It has advantages such as simple structure, easy integration, and strong engineering applicability.

The invention discloses a microstrip band-stop filter with a wide upper passband, and relates to the technical field of radio frequency passive devices, and the microstrip band-stop filter comprises an electromagnetic shielding cavity, a dielectric substrate, a microstrip circuit located on the front surface of the dielectric substrate, and a grounding metal layer located on the back surface of the dielectric substrate. The microstrip circuit is composed of an input feeder line, an output feeder line and a four-stage cascade filter network located between the input feeder line and the output feeder line. The stopband center frequencies of the four filtering units are distributed in a staggered manner so as to broaden the stopband bandwidth; each filtering unit is composed of two U-shaped micro-strips and an interdigital capacitor, and symmetrical rectangular split ring resonators loaded with the interdigital capacitors and double-path arc-shaped parallel micro-strip lines are adopted at the interstage connecting positions of the filtering units respectively. According to the invention, the low insertion loss, high selectivity and miniaturization design of the filter are realized, and the technical problem that the existing band elimination filter is difficult to adapt to a complex and changeable signal environment due to the limited passband width is solved.

A miniaturized broadband microstrip circulator provided by the present invention comprises a metal base plate, a gyromagnetic medium substrate, a microstrip circuit, a ceramic spacer and a permanent magnet, the gyromagnetic medium substrate is installed on the metal base plate, the microstrip circuit is installed on the gyromagnetic medium substrate, the ceramic spacer is installed on the microstrip circuit, and the permanent magnet is installed on the microstrip circuit. And the permanent magnet is mounted on the ceramic spacer. By designing the gyromagnetic medium substrate, the gyromagnetic medium substrate is no longer made of a single gyromagnetic material. The microstrip circulator has the advantages of being small in size and wide in bandwidth, miniaturization and broadband of the microstrip circulator are achieved, and the microstrip circulator is suitable for a microwave assembly of a large-scale micro-assembly technology.

The invention discloses a microstrip annular isolation assembly based on a composite nested substrate, and belongs to the technical field of microwave components. The antenna comprises a slide, a radio frequency resistor, a composite nested substrate, a microstrip circuit layer, a protection sheet and a permanent magnet, the microstrip circuit layer is arranged on the composite nested substrate, the protection sheet is arranged on the microstrip circuit layer, the permanent magnet is arranged on the protection sheet, the composite nested substrate and the radio frequency resistor are arranged on the slide, the radio frequency resistor is electrically connected with the microstrip circuit layer, and the microstrip circuit layer is electrically connected with the permanent magnet. The composite nested substrate is formed by nesting three layers of different-material double knots, the three layers of different-material double knots are sequentially an outer layer plate, a ferrite outer ring and a ferrite inner cylinder from outside to inside, and the magnetic moment of the ferrite is sequentially increased from outside to inside. According to the invention, triple frequency work, high isolation, miniaturization and high stability can be taken into account, so that more application scenes can be met.

The application discloses a four-mode reconfigurable microstrip line filter integrated with reflection-free and multi-zero-point response, which adopts a single microstrip circuit topology with left-right symmetry and is composed of an upper branch band-pass filter circuit, a T-shaped joint structure, a pair of cross-shaped absorption branches, a pair of coupled line absorption branches, five groups of switch pairs and input and output ports; the coupled lines at the two ends of the upper branch band-pass filter circuit are connected with the ground through the switch pair connection ports and the T-shaped joint structure, and the absorption branches are connected with the ports in parallel through the switches; the four-mode switching of double-band rejection, full-band reflection-free band-pass, full-band reflection-free band-stop and multi-transmission zero-point band-stop is realized in the same circuit through the on-off control of the switches; the integration degree is improved; the reflection-free characteristic of the band-stop energy dissipation is realized by relying on the resistance-loaded absorption branches; the frequency selectivity and the band-stop suppression capability are strengthened in combination with the multi-transmission zero points; and the problems of low resource reuse rate, lack of reflection-free characteristic and uneven multi-mode performance of the traditional structure are solved.

A combined planar radiator near-field antenna comprises a radiator PCB, a microstrip circuit feed PCB, and vertical metal feed posts connecting the radiator PCB and the microstrip circuit feed PCB. A combined planar radiator is provided on the upper surface of the radiator PCB, the combined planar radiator comprising a plurality of metal copper foils, each provided with a soldering via. The microstrip circuit feed PCB is provided with a microstrip distribution circuit, the microstrip distribution circuit being provided with a microstrip feed port and a plurality of metal feed post feed points. Compared with the prior art, the present invention has the beneficial effects of: using the combined planar radiator as the basic radiator facilitates achieving a large and stable near-field radiation area, and each metal copper foil is connected using an independent metal feed post feed point. The microstrip distribution circuit is used to sequentially configure corresponding feeding phases and equal-amplitude feeding levels to achieve circularly polarized operating characteristics.

A Ku-band self-biased circulator belongs to the field of microwave ferrite device technology. The circulator includes a composite substrate and a microstrip circuit formed on the composite substrate; wherein the composite substrate includes a secondary dielectric sheet and an array of ferrite rods nested within the secondary dielectric sheet, the array of ferrite rods being composed of nested array of ferrite rods and a primary dielectric substrate. This invention, by employing a composite substrate structure with array of ferrite rods nested within a primary dielectric substrate, effectively reduces the influence of demagnetizing fields through the placement of the rod-shaped ferrites. The synergistic generation of multiple rod-shaped ferrites produces a stable bias magnetic field, providing good control over the device's operating frequency range. While maintaining non-reciprocal characteristics, it significantly reduces magnetic loss in the Ku-band, thereby reducing insertion loss.

The rectangular waveguide-microstrip three-path power divider comprises a waveguide body and a microstrip circuit, the microstrip circuit is located in the waveguide body, the waveguide body is provided with a rectangular waveguide port and a shielding cavity, and a waveguide short-circuit surface is manufactured at the terminal of the rectangular waveguide port; the microstrip circuit comprises a dielectric substrate, fan-shaped probes are symmetrically arranged on the dielectric substrate, each fan-shaped probe is sequentially connected with an impedance conversion line, a low-impedance branch line and a first 50-ohm microstrip line, the low-impedance branch line is further connected with a high-impedance branch line, and the end of the high-impedance branch line is connected with a second 50-ohm microstrip line. After being input from the rectangular waveguide port, a microwave signal is efficiently coupled to the microstrip circuit under the combined action of the fan-shaped probe and the waveguide short-circuit surface; after impedance matching is carried out on signals through the impedance conversion lines, the signals are distributed to the low-impedance branch lines and the high-impedance branch lines, the signals distributed to the low-impedance branch lines are output from the first 50-ohm microstrip line, and the signals in the two high-impedance branch lines are output from the second 50-ohm microstrip line.

The invention discloses a microstrip circuit of a circulator, the circulator and electronic equipment. The circuit comprises a central junction circuit used for distributing radio frequency signals among a plurality of ports and forming a directional transmission path of the radio frequency signals under the action of a magnetic circuit structure of the circulator; the plurality of matching circuits are connected between the central junction circuit and the plurality of ports and are used for matching impedance between the central junction circuit and the plurality of ports; the at least one resonance elimination circuit is connected with the matching circuit in parallel and used for guiding and consuming out-of-band harmonic energy, and the electrical length of the resonance elimination circuit is determined based on the wavelength of the radio frequency signal; the resonance elimination circuit further comprises an energy absorption device which is arranged at the open circuit end of the resonance elimination circuit and used for consuming out-of-band harmonic energy. The effect of improving the out-of-band harmonic interference resistance of the circulator is achieved.

The invention relates to the technical field of microwave ferrite devices, and discloses an X-band miniaturized microstrip ferrite circulator, which comprises a magnetic conductive sheet, a ferrite substrate, a microstrip circuit, a ceramic sheet, a permanent magnet and the like. And the ferrite substrate and the positioning boss are integrally formed, so that the number of parts is reduced, the weight is reduced, the space occupied by an assembly gap is avoided, and the product reliability is enhanced. The microstrip circuit is arranged on the upper surface of the ferrite substrate, the upper surface of the microstrip circuit is provided with the single Y-shaped disc central section and uniformly provided with the fan-shaped regions and the grooves, the circulator function is realized on the surface of the limited substrate, and the occupied area of the circuit is reduced. The ceramic chip and the permanent magnet are sequentially arranged on the upper surface of the micro-strip circuit, all the components are stacked, excessive occupation of transverse space is avoided, the overall structure is simplified, the material consumption is reduced, the production cost is reduced, the weight is reduced, the overall size and weight burden of the system are effectively reduced, and stable operation of the system is guaranteed.

The invention provides a low-loss high-isolation micro-strip bridge for a Ku-band narrow-band measurement and control system. The low-loss high-isolation micro-strip bridge comprises a dielectric substrate and a micro-strip pattern structure on the dielectric substrate, the micro-strip pattern structure comprises two main lines, two branch lines and four micro-strip feeder lines; the two main lines are arranged in parallel, and the two branch lines are arranged in parallel; the two branch lines are located between the two main lines and are perpendicular to the two main lines respectively. The width of the four microstrip feeder lines is smaller than that of the main line; the four microstrip feeder lines are divided into two groups and are respectively connected with two ends of the two main lines. The Ku band-pass filter has the advantages that excellent low insertion loss, high port isolation and good port return loss are realized at the same time in a specific narrowband working frequency of a Ku band, and the inherent advantages of miniaturization, easy integration and low cost of a microstrip circuit are kept at the same time.

The application provides a cross-coupled microstrip filter vibrator antenna and an array thereof, and belongs to the field of large phased array radar systems, and comprises an antenna feed port, a reflector plate, a suspended cross-coupled microstrip circuit board, a filter cover plate and metal vibrator arms. The filter cover plate is located on the upper surface of the reflector plate and forms a suspended air cavity together with the reflector plate. The suspended cross-coupled microstrip circuit board is located in the suspended air cavity. The inner conductor of the antenna feed port extends into the suspended air cavity and is connected with the suspended cross-coupled microstrip circuit board. The outer conductor is connected with the reflector plate. The metal vibrator arms are located on the filter cover plate. One of the metal vibrator arms is connected with the suspended cross-coupled microstrip circuit board, and the other is grounded. The radiation characteristics are realized directly on the filter cover plate. The suspended broadband high-pass filter is used to realize high suppression of the lower sideband. The original filtering performance of the filter is not changed, the profile height is basically maintained, a wider working bandwidth is realized, and the interference problem of a secondary radar on a primary radar is solved.

The utility model relates to the technical field of antennas, and discloses a satellite positioning patch antenna, comprising a substrate, the substrate is provided with a first surface and a second surface, the first surface is provided with a plurality of metal pads, the metal pads extend to form a microstrip line, and the second surface is a metal conductive surface; the edge of the metal patch is provided with a metal foot part corresponding to the metal bonding pad, and the metal foot part is correspondingly welded and connected with the metal bonding pad; and a signal feed foot part is arranged on the metal patch. According to the utility model, the miniaturization of the cavity resonance structure is realized, and the weight problem of the ceramic antenna is solved.

The utility model discloses an ultra wide band multi-nested microstrip two-section circulator, which comprises a base, a ceramic substrate, a microstrip circuit, ferrite, a ferrite substrate, a ceramic gasket and a samarium cobalt permanent magnet, the ferrite substrate is nested in a hole groove in the ceramic substrate through a nesting process to form a whole, the ceramic substrate is welded on the base through welding flux, the microstrip circuit is arranged on the upper surface of the ferrite substrate, the ceramic gasket is arranged on the microstrip circuit, and the samarium-cobalt permanent magnet is arranged on the ceramic gasket; the circulator is simple in structure, is suitable for surface mounting and microcircuit integration, and has the obvious advantages of good consistency, batch production, miniaturization and wide frequency band compared with a traditional circulator.

The embodiment of the utility model discloses a microstrip-waveguide conversion structure, a signal transmission device and communication equipment. According to the technical scheme provided by the embodiment of the utility model, the mounting base and the cover plate which are detachably connected are arranged, the waveguide through hole is formed in the mounting base, and the connecting port communicated with the first end of the waveguide through hole is formed in the mounting base, so that external equipment can be connected to the connecting port; a reflection cavity is formed in the side, corresponding to the second end of the waveguide through hole, of the cover plate, a boss which is used for configuring a transmission zero point position and is of a preset height is arranged in the reflection cavity of the cover plate, and transverse electromagnetic waves are output from the output end of the microstrip circuit board, excited and converted into transverse electromagnetic waves through the reflection cavity and then transmitted along the waveguide through hole. The boss in the reflection cavity can add a transmission zero point in signal transmission, out-of-band rejection of signal transmission can be effectively achieved, the position of the transmission zero point can be preset based on the preset height of the boss, debugging work does not need to be additionally introduced in the production link, and the production efficiency is improved. And the production cost can be greatly reduced while the equipment size is effectively reduced.

The utility model discloses a C wave band low harmonic power amplifier relates to the field of amplifier, and the amplifier includes the phase -locked loop frequency source module, and its output is connected pre -inhibit harmonic filter, adjustable gain forestage amplifier, interstage dynamic harmonic suppression module and double power divider microstrip circuit in proper order. Two output ends of double power divider microstrip circuit are connected first, second final stage power amplifier respectively, and its output is synthesized through double -way power synthesizer microstrip circuit again, and finally by radio frequency port output, while access feedback detection module, under the control of control module, through interstage dynamic harmonic suppression module to harmonic real -time regulation and control, combine the closed -loop feedback mechanism of feedback detection module, and the harmonic distortion caused by temperature drift, device aging is effectively suppressed, and the stability of harmonic suppression performance is significantly improved while guaranteeing high -power output.

The invention belongs to the technical field of wireless communication, and discloses a microstrip antenna housing for gain enhancement and a wireless communication system. The metasurface structure antenna housing is located right above the radiation antenna; the metasurface printed circuit unit for enhancing the radiation performance is formed by combining two long-edge hollowed triangles of a rectangular micro-strip, a rectangular ring groove formed in the middle and small rectangular micro-strip circuits added at two ends, the metasurface array is composed of 5 * 5 metasurface units, the metasurface array is etched on the front and back surfaces of the dielectric substrate to form an antenna housing, and the antenna housing is provided with the antenna housing. And the LED lamp is placed right above the radiation source. According to the invention, the problem of gain improvement of a traditional antenna under the condition that the structural design of the antenna is not changed is solved; while the gain of the antenna is ensured to be improved, the antenna has a good radiation pattern and a stable working bandwidth; the method can be well applied to a wireless communication system.

The utility model relates to the technical field of communication, and provides a coaxial microstrip coupler, which comprises a main rod, an outer cavity, a microstrip circuit board and an adjustable coupling mechanism, the outer cavity is internally provided with an accommodating cavity, the main rod is arranged in the accommodating cavity, the outer wall of the outer cavity is provided with a coupling window, the coupling window corresponds to the main rod, and the coupling window corresponds to the microstrip circuit board. The accommodating cavity is communicated with the outside through the coupling window; the microstrip circuit board is installed on the outer wall of the outer cavity and blocks the coupling window. The adjustable coupling mechanism comprises a first conductor and a second conductor arranged on the first conductor in a sleeving mode, the first conductor can move relative to the second conductor in the axial direction of the second conductor so as to stretch into the coupling window, and the second conductor is arranged on the microstrip circuit board and electrically connected with the microstrip circuit board. According to the coaxial microstrip coupler provided by the utility model, a post-stage coupling degree adjusting circuit of the coupler can be omitted, the complexity of the circuit is reduced, and the reliability of the whole circuit is higher.

A Lamp; the C-band high-temperature superconducting frequency division filter comprises a three-port matching network, an L-band filter and a C-band filter which are arranged on a dielectric substrate, the filter is characterized in that the three-port matching network is of a similar T-shaped structure and is composed of stepped impedance multi-fold microstrip lines, a resonator of the L-band filter is of a similar hairpin-shaped structure with capacitive finger tip loading, the two ends of the resonator are parallel branch microstrip lines in a left-right hand interdigital shape, a resonator of the C-band filter is of a hairpin-shaped structure, and the two ends of the C-band filter are parallel branch microstrip lines in a right-left hand interdigital shape. Microstrip circuits of the three-port matching network, the L-band filter and the C-band filter are made of high-temperature superconducting thin film materials; the three-port matching network has the advantages that the three-port matching network can organically combine an L-band filter and a C-band filter, frequency division filtering of L-band and C-band signals is achieved, a hairpin-like structure loaded at a capacitive finger tip is introduced, equivalent capacitance is increased, frequency multiplication of the L-band filter is pushed out of the C-band, and the three-port matching network has the advantages of being compact in structure, high in frequency selectivity, low in cost and the like. And the isolation degree is good.

The utility model relates to a circuit assembly used for transmitting W wave band signals, which belongs to the technical field of electronics and comprises an RSIW structure waveguide formed by an upper layer printed board and a lower layer printed board which are arranged in a stacked mode, and an outlet amplifying circuit arranged on a top metal layer of the upper layer printed board is connected with a feed port on the waveguide on the same layer. The inlet amplification circuit arranged on the top metal layer of the lower printed board is connected with the inlet filter, and the inlet filter is further connected with the waveguide lower feed port located in the same layer, so that W-band signals can be transmitted in waveguides, high integration level is achieved, and the antenna is more compact. The component can be used as an element to be integrated with high integration level and applied to various microstrip circuits and antennas required by transmission of W-band signals.

The application discloses a kind of plane matrix device and radio frequency matrix system, it is related to radio frequency microwave communication technical field, the matrix device solves the structure form of existing matrix cumbersome, the transmission form of original cable space distortion or flip interconnection structure is simplified into the transmission form of plane microstrip.The plane matrix device includes the microstrip circuit of "X" type cross form arrangement, its 4 branches are four filter devices, four branches are interconnected by a matching device at cross position, and the port of each filter device corresponds the four ports of plane matrix device respectively, and can be used for upper and lower circuit cascade.The matrix device can be used to realize different frequency band matrix power division and synthesis, can satisfy overlapping installation to realize multiple matrix circuit, simplify volume, and signal transmission response is fast, isolation is high, phase amplitude consistency is excellent, heat dissipation performance is excellent, frequency band range covers widely.

The application relates to the technical field of microwave ferrite devices, and discloses a miniaturized X-band microstrip ferrite circulator, which comprises a magnetic conductive sheet, a ferrite substrate, a microstrip circuit, a ceramic sheet and a permanent magnet and the like. The ferrite substrate is arranged on the upper surface of the magnetic conductive sheet, the ferrite substrate is provided with a positioning boss and is integrally formed with the magnetic conductive sheet, the number of components is reduced, the weight is lowered, the assembly gap is avoided from occupying space, and the product reliability is enhanced. The microstrip circuit is arranged on the upper surface of the ferrite substrate, the upper surface of the microstrip circuit is provided with a single Y-shaped disc center section and uniformly arranged fan-shaped areas and grooves, the circulator function is realized on the limited substrate surface, and the occupied area of the circuit is reduced. The ceramic sheet and the permanent magnet are sequentially arranged on the upper surface of the microstrip circuit, the components are stacked and arranged, the transverse space is avoided from being excessively occupied, the overall structure is simplified, the material consumption is reduced, the production cost is lowered, the weight is reduced, the overall volume and weight burden of the system are effectively reduced, and the stable operation of the system is ensured.