38 results about "Microstrip filter" patented technology

The invention relates to the technical field of microwave ferrite devices, and discloses a double-section microstrip circulator which comprises a magnetic conductive sheet, a ferrite gyromagnet and a resistor, the ferrite gyromagnet and the resistor are arranged on the upper surface of the magnetic conductive sheet, a circuit is additionally arranged on the upper surface of the ferrite gyromagnet, and the circuit is connected with a microstrip filter; the ceramic chip is arranged on the upper surface of the circuit, and samarium cobalt is additionally arranged at the top end of the ceramic chip, according to the two-section microstrip circulator, through the arrangement of a combined structure of the magnetic conductive sheet, the ferrite gyromagnet, the circuit, the microstrip filter, the ceramic chip, the samarium cobalt and the resistor, the isolation degree can be effectively improved, and the requirement of a system for high isolation is met; the microstrip filter in circuit connection can improve the second harmonic characteristic and improve the problem that the second harmonic of a conventional microstrip circulator is poor; the ferrite gyromagnet is used as a gyromagnet material, and is combined with a double-section circuit, so that the characteristic of low emission loss can be realized, and the circulator is small in size, light in weight and relatively high in reliability due to the integral structural design.

The invention belongs to the technical field of microwave filter design, and particularly relates to a microstrip filter of a CQ frequency-variable coupling structure and a design method of the microstrip filter. The method comprises the following steps: firstly, according to required filter indexes, such as order, center frequency, bandwidth, return loss and transmission zero position, solving a transverse matrix M of a filter by utilizing a filter comprehensive theory; then performing similarity transformation and scaling transformation on the transverse matrix to eliminate unnecessary coupling terms in the transverse matrix so as to obtain a filter topological structure and a frequency-dependent coupling matrix M'which are easier to implement; a quarter-wavelength short-circuit stepped impedance resonator is selected as a resonance unit of the micro-strip filter simulation model; finally, relevant coupling parameters of the micro-strip filter simulation model are made to approach the theoretical coupling coefficient by adjusting relevant physical structure parameters of the resonator, and then design is completed. By introducing a frequency-dependent coupling mechanism into the structure, the position of a transmission zero point is flexible and controllable, and the spectrum selectivity and the out-of-band rejection capability of the filter can be effectively improved.

Printed microstrip filter. A printed film radio frequency microstrip bandpass filter includes: a plurality of resonators disposed on a dielectric substrate; a first input / output (I / O) interface and a second I / O interface connected to corresponding first and second resonators located on the sides of one or more intermediate resonators. The opposite ends of the one or more intermediate resonators are connected to a ground plane on the opposite side of the substrate via corresponding wires. The intermediate resonators have an electrical wavelength that is half the wavelength of the filter's center frequency, and the first and second resonators may have an electrical wavelength that is nominally half the wavelength of the bandpass filter's center frequency.

The invention provides a multi-band radio frequency power real-time monitoring device which comprises a broadband antenna, a radio frequency amplifier, a power divider, a microstrip filter, a power detector and an acquisition processor. The radio-frequency amplifier comprises a broadband matching circuit and a low-noise amplifier and is used for amplifying radio-frequency signals received by the broadband antenna, and the power divider is used for dividing output signals of the radio-frequency amplifier into N equal parts and respectively sending the N equal parts into the microstrip filters with filtering characteristics of different frequency bands, the power detector converts an output signal of the microstrip filter into a voltage signal, outputs the voltage signal to the acquisition processor for sampling and quantification, and calculates the average power in each frequency band within a specified time. The device can quickly acquire the power information of each frequency band of the radio frequency signal, has the characteristics of good real-time performance and high accuracy, and can monitor the non-single-frequency complex radio frequency signal in real time.

The invention provides a third harmonic suppression film microstrip filter based on a mixed structure. Comprising a substrate, a pair of coplanar waveguide feeder lines used for being connected with an external circuit and playing a role in impedance matching, and a plurality of interdigital resonators used for generating passband characteristics of the filter, the hairpin resonator is used for generating a transmission zero point at the low end of the filter to improve low-end stop-band suppression, the 1 / 4 wavelength open-circuit lines are used for suppressing third harmonics of the filter, and the pair of coplanar waveguide feeder lines, the interdigital resonators, the hairpin resonator and the 1 / 4 wavelength open-circuit lines are all laid on the substrate. The plurality of interdigital resonators are located between the pair of coplanar waveguide feeders, the hairpin resonator is located between the plurality of interdigital resonators, the pair of coplanar waveguide feeders is connected with the interdigital resonators at two sides of the plurality of interdigital resonators, and the plurality of 1 / 4 wavelength open-circuit lines are connected with the pair of coplanar waveguide feeders in parallel.

The invention relates to the technical field of microwave circuits, and discloses a stacked high-pass filter, which comprises a first filter circuit, a first through hole, a second filter circuit, a second through hole and an interconnection layer, and is characterized in that the first filter circuit and the second filter circuit are connected through the interconnection layer; the first through hole penetrates through the first filter circuit and is connected with the interconnection layer, and the second through hole penetrates through the second filter circuit and is connected with the interconnection layer; the dielectric constant of the first filter circuit is larger than a first preset value, the dielectric constant of the second filter circuit is smaller than a second preset value, and the first preset value is larger than the second preset value. The stacked high-pass filter provided by the invention has the characteristics of miniaturization, high suppression, ultra wide band and the like, realizes double-layer wiring high-pass filter circuit topology in a form of stacking the first filter substrate and the second filter substrate, and has the structural advantages of miniaturization and low cost of a microstrip filter and the performance advantages of high suppression and ultra wide band of a suspended line filter.

This invention discloses a cross-shaped microstrip filter, belonging to the field of microwave RF passive device technology. The filter includes a dielectric substrate, an input microstrip line, an output microstrip line, two sets of series-arm resonant units, and two sets of parallel-arm resonant units. The series-arm resonant units are composed of microstrip inductors and interdigital capacitors connected in series, with the resonant frequency corresponding to the filter's center frequency. The parallel-arm resonant units are composed of microstrip inductors and surface-mount capacitors connected in series, generating low-frequency and high-frequency transmission zeros respectively. The four sets of resonant units converge at a common node to form a cross-shaped topology. This invention, through a modular cross-shaped architecture, allows direct mapping between the resonant units and the frequency response, simplifying debugging and increasing design efficiency. Modular cascading can achieve high-order filtering, significantly improving band-edge steepness and stopband suppression, making it suitable for microwave RF systems such as communication, radar, and satellite navigation.

The small-size high-bandwidth thin film microstrip filter comprises a long-strip-shaped substrate and a resonator group arranged on the substrate, a line connecting the midpoints of the long sides of the substrate on both sides forms a center line, the resonator group comprises 2n resonators symmetrically distributed along the center line, n is an even number, a first cross-sawtooth structure forming a capacitive coupling is arranged between the nth-m resonator and the nth-m+1 resonator, a second cross-sawtooth structure forming a capacitive coupling is arranged between the nth resonator and the nth+1 resonator, m is an odd number smaller than n, the cross-sawtooth structure can be used to increase the coupling area and improve the coupling amount without changing the size of the thin film microstrip filter, so that the bandwidth requirement is met, the nth-s resonator and the nth-s+1 resonator are connected through a connecting rib, s is an even number smaller than n, and the inductive coupling formed by the connecting rib can also be used to eliminate the parasitic zero point formed on the far end side of the passband, so that the electrical performance is improved.

The utility model belongs to the technical field of filter structures, and particularly relates to a KU-frequency-band low-loss microstrip filter structure design which comprises a machine body and a prompting mechanism, the two ends of the machine body are fixedly connected with connector assemblies, the prompting mechanism is arranged on the connector assemblies, the prompting mechanism comprises an outer cylinder detachably connected to the connector assemblies, and the outer cylinder is arranged on the machine body. The inner side of the outer cylinder is rotationally connected with an inner cylinder, an observation opening is formed in the end, close to the inner cylinder, of the outer cylinder, and a prompt mark is arranged on the surface of the end, close to the outer cylinder, of the inner cylinder. According to the utility model, the inner cylinder and the outer cylinder can move relatively when the joint assembly and the connector are loosened, so that a maintainer can judge whether the joint assembly and the connector are loosened by observing whether a prompt sign is exposed in the observation port or not; and relative rotation between the connector assembly and the connector can be hindered through friction between the outer barrel and the inner barrel, and the loosening situation is reduced.

This invention relates to the field of microwave ferrite device technology and discloses a dual-section microstrip circulator, comprising: a magnetic sheet, and a ferrite gyromagnet and a resistor disposed on the upper surface of the magnetic sheet, wherein a circuit is added to the upper surface of the ferrite gyromagnet, and the circuit is connected to a microstrip filter; a ceramic sheet disposed on the upper surface of the circuit, and a samarium cobalt is added to the top of the ceramic sheet. This dual-section microstrip circulator, through the combined structure of the magnetic sheet, ferrite gyromagnet, circuit, microstrip filter, ceramic sheet, samarium cobalt, and resistor, can effectively improve isolation and meet the system's high isolation requirements; the microstrip filter connected to the circuit can improve the second harmonic characteristics, improving the problem of poor second harmonic characteristics in conventional microstrip circulators; the ferrite gyromagnet, as a gyromagnetic material, combined with the dual-section circuit design, helps to achieve low transmission loss characteristics; the overall structural design makes the circulator small in size and light in weight, and has high reliability.

The present application relates to the technical fields of microwave circuit, and discloses a stacked high-pass filter, which comprises a first filter circuit, a first via, a second filter circuit, a second via and an interconnection layer, the first filter circuit and the second filter circuit are connected through the interconnection layer, the first via penetrates the first filter circuit and is connected with the interconnection layer, the second via penetrates the second filter circuit and is connected with the interconnection layer, the dielectric constant of the first filter circuit is greater than a first preset value, the dielectric constant of the second filter circuit is less than a second preset value, and the first preset value is greater than the second preset value.The stacked high-pass filter has the characteristics of miniaturization, high suppression and ultra-wideband, and realizes the high-pass filter circuit topology of double-layer wiring in the form of stacking the first filter substrate and the second filter substrate, and has the structural advantages of miniaturization and low cost of the microstrip filter and the performance advantages of high suppression and ultra-wideband of the suspended line filter.

The invention belongs to the field of thin film microstrip filters, and particularly relates to a miniaturized ultra-wideband planar filter. According to the invention, the bridge employs a compact branch structure, the length and spacing of the branch are optimized according to the electromagnetic coupling characteristics of the 3.1-10.6 GHz frequency band, and the matching conditions of the characteristic impedance, the resonator and the dielectric substrate are strictly satisfied; the planar coupling path of the bridge is further combined with the three-dimensional coupling of the gold wire to form a'planar + three-dimensional 'composite coupling mechanism, and by matching with the miniaturized configuration of the microstrip resonator, the overall size of the device is reduced by more than 30%, the group delay is greatly reduced (from 0.68 ns traditionally to 0.33 ns at 8.3 GHz), the coupling value between the resonators is remarkably improved, and finally, the ultra-wideband coverage is realized. And in-band interference signals can be effectively suppressed. The problems that in the prior art, traditional bridge coupling only depends on a plane structure, the coupling path is single, coupling value improvement is limited, and bandwidth and miniaturization are difficult to consider at the same time are effectively solved.

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 microstrip filter includes a first substrate (11) and a second substrate (12) disposed oppositely, and a dielectric layer (13) disposed between the first substrate (11) and the second substrate (12). The first substrate (11) includes a first base substrate (110) and a patch array disposed on a side of the first base substrate (110) close to the dielectric layer (13). The second substrate (12) includes a second base substrate (120), a microstrip line (121) disposed on a side of the second base substrate (120) close to the dielectric layer (13), and a ground layer (122) disposed on a side of the second base substrate (120) away from the microstrip line (121). The microstrip line (121) includes a main transmission line (1211) and at least one branch (1212). An orthographic projection of the branch (1212) of the microstrip line (121) on the first base substrate overlaps with an orthographic projection of the patch array on the first base substrate (110), and the dielectric layer (13) is configured to adjust a resonant frequency between the patch array and the microstrip line (121) when a voltage is applied to the patch (111) of the patch array.

This application discloses a dual-polarization radio frequency transceiver system and its package structure, including: a power amplifier chip, a limiting amplifier chip, a circulator, a switching chip, a first microstrip filter stub, and a second microstrip filter stub. In the transmit state, the circulator is used to unidirectionally transmit the radio frequency signal input to the power amplifier chip to the switching chip. The switching chip can switch the transmission path of the radio frequency signal so that the radio frequency signal is processed by the first microstrip filter stub or the second microstrip filter stub before being output. In the receive state, the circulator is used to unidirectionally transmit the radio frequency signal input to the first microstrip filter stub or the second microstrip filter stub after passing through the switching chip to the limiting amplifier chip before being output. This invention realizes the switching between horizontal and vertical polarization channels through the switching chip, and improves the second harmonic suppression ratio by utilizing the first and second microstrip filter stubs. The system is integrated into a miniaturized package structure and has good heat dissipation.

The present invention discloses a microstrip filter, microwave circuit, and antenna, comprising an upper microstrip board, a prepreg, and a lower microstrip board. The prepreg is positioned between the upper and lower microstrip boards, and the lower microstrip board is connected to a ground plane. A first microstrip transmission line is provided on the upper layer of the upper microstrip board, and a second microstrip transmission line is provided on the lower layer of the upper microstrip board. The first microstrip transmission line is in a "X" shape, and the second microstrip transmission line is in a "T" shape. The first and second microstrip transmission lines overlap, and the first and second microstrip transmission lines are connected by a metalized blind via. The designed microstrip filter is compact, has low loss, and is easy to integrate.

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 application discloses a differential feed dual-band dual-polarized microstrip filter antenna, which comprises three layers of dielectric substrates arranged in a top-down interval, and the lower surface of the first layer of dielectric substrate is loaded with an octagonal ring-shaped coupling parasitic structure; the upper surface of the second layer of dielectric substrate is printed with a rectangular radiation patch, the rectangular radiation patch is loaded with four unclosed rectangular slots which are square distributed and rotationally symmetrical to each other, and the lower surface of the second layer of dielectric substrate is printed with a cross-shaped parasitic branch and four L-shaped symmetrical open circuit branches which are of the same structure and extend outward along the diagonal direction of the rhombus; the lower surface of the third layer of dielectric substrate is a metal floor; the second layer of dielectric substrate and the third layer of dielectric substrate are connected through a coaxial feeder; the differential feed technology is combined with the microstrip antenna, so that the dual-band dual-polarized filter antenna design with four radiation zeros is realized, the antenna has good edge selectivity and good out-of-band suppression capability, the in-band gain is stable, and the directional diagram has good symmetry and directivity.

The application belongs to the field of thin film microstrip filter, and particularly relates to a miniaturized ultra-wideband planar filter. The application adopts a compact stub structure through an electric bridge, the stub length and interval are optimized according to the electromagnetic coupling characteristics of the 3.1-10.6 GHz frequency band, and the matching conditions of the characteristic impedance and the resonator and the dielectric substrate are strictly met; and further, the planar coupling path of the electric bridge is combined with the three-dimensional coupling of the gold wire to form a composite coupling mechanism of 'planar + three-dimensional', cooperating with the miniaturized configuration of the microstrip resonator, the overall size of the device is reduced by more than 30%, while the group delay is greatly reduced (from the traditional 0.68 ns to 0.33 ns @ 8.3 GHz), the coupling value between resonators is significantly improved, and finally the ultra-wideband coverage is realized, and the in-band interference signals can be effectively suppressed. The application effectively solves the problem in the prior art that the traditional electric bridge coupling only relies on the planar structure, the coupling path is single, the coupling value is limited, and it is difficult to balance the bandwidth and miniaturization.

The invention provides an embedded microstrip filter, a manufacturing method thereof, a power amplifier comprising the embedded microstrip filter and electronic equipment. The embedded microstrip filter comprises: a microstrip transmission line; the filter structure is embedded in the micro-strip transmission line, the filter structure comprises at least one row of multiple island-shaped metal patches and multiple capacitors or inductance elements, and the multiple metal patches are connected with the micro-strip transmission line through the multiple capacitors or inductance elements. According to the embedded microstrip filter provided by the invention, the filtering function can be realized under the condition of not occupying extra space.

The invention relates to the technical field of antennas, and provides a microstrip filtering antenna and electronic equipment, and the microstrip filtering antenna comprises a substrate, an antenna body and a microstrip filter. The base body comprises a first surface and a second surface which are oppositely arranged; the antenna body is arranged in the first surface of the base body; the microstrip filter is arranged in the second surface of the substrate and is connected in series with the antenna body; the microstrip filter comprises a transmission piece and a coupling piece arranged outside the transmission piece; the coupling piece at least comprises a first coupling branch connected with the transmission piece and a second coupling branch located outside the transmission piece at an interval. According to the micro-strip filtering antenna, the antenna body and the micro-strip filter can be located in different layers of the base body respectively, the laying space of the micro-strip filtering antenna is saved, the size of the micro-strip filtering antenna can be miniaturized, the antenna performance and the filtering effect can be compatible in different frequency band ranges, and the antenna performance is improved. And the universality of the microstrip filtering antenna in a plurality of frequency band ranges is greatly improved.

The utility model provides a strip line filter. The strip line filter comprises a top-layer PCB, a middle-layer PCB and a bottom-layer PCB, micro-strip lines are laid on the bottom layer PCB and the middle layer PCB. The microstrip line of the bottom PCB comprises a bottom input straight-through line and a bottom output straight-through line which are located at the two ends of the bottom PCB in the length direction respectively and extend from the ends to the middle. The microstrip line of the middle-layer PCB comprises a middle input straight-through line and a middle output straight-through line which are located at the two ends of the middle-layer PCB in the length direction respectively and extend towards the middle from the positions away from the ends by a preset distance, and a pair of L-shaped coupling lines symmetrically arranged between the middle input straight-through line and the middle output straight-through line. The plurality of linear coupling lines are arranged between the L-shaped coupling lines in a staggered and spaced manner; and the L-shaped coupling line and the linear coupling line form a coupling part. According to the strip line filter, the environmental restriction of a microstrip filter is eliminated, the strip line filter has a high rectangular coefficient, and higher suppression degree is realized under the same volume.

The invention provides an equivalent circuit of a microstrip line section, which clearly reveals a physical mechanism of the microstrip line section. A simple explicit equivalent relationship is established between the electrical parameters of the microstrip line section and the circuit elements of the microstrip line section equivalent circuit. Based on the equivalent circuit, the equivalent circuit of the microstrip filter based on the microstrip line section can be constructed, so that the physical mechanism of the microstrip filter is clearly revealed, and a rapid design method is developed. By using the design method, a group of good structure parameter values can be quickly determined as initial values according to the technical indexes of the microstrip filter, the design process is accelerated, the design time is shortened, and engineering application is facilitated.

A microstrip filter comprises a first substrate (11) and a second substrate (12) arranged oppositely, and a dielectric layer (13) between the first substrate (11) and the second substrate (12). The first substrate (11) comprises a first substrate (110) and a patch array arranged on a side of the first substrate (110) close to the dielectric layer (13). The second substrate (12) comprises a second substrate (120), a microstrip line (121) arranged on a side of the second substrate (120) close to the dielectric layer (13), and a ground layer (122) arranged on a side of the second substrate (120) away from the microstrip line (121). The microstrip line (121) comprises a main transmission line (1211) and at least one branch (1212). The branch (1212) of the microstrip line (121) overlaps with the orthographic projection of the patch array on the first substrate (110), and the dielectric layer (13) is configured to adjust the resonant frequency between the patch array and the microstrip line (121) when a voltage is applied to a patch (111) of the patch array.

The utility model discloses a microstrip filter. The microstrip filter comprises a dielectric substrate which comprises a first surface and a second surface which are opposite and perpendicular to the thickness direction of the dielectric substrate; the microstrip transmission line is formed on the first surface; the reference ground is formed on the second surface; the at least one via hole is formed in the first surface and extends towards the second surface, and the depth of the at least one via hole is smaller than the thickness of the dielectric substrate; and the metal layer is filled in the at least one via hole, and the orthographic projection of the metal layer on the first surface is overlapped with the orthographic projection of the microstrip transmission line on the first surface. According to the microstrip filter, the metal layers are arranged in the through holes to serve as resonance branches, the three-dimensional space of the dielectric substrate can be fully utilized, product miniaturization is achieved, and meanwhile the large-bandwidth suppression effect is achieved.

The application discloses an integrated filter antenna and relates to the technical field of antennas.The integrated filter antenna comprises a dielectric substrate, a ground inductor and a radiation inductor are printed on the dielectric substrate, the radiation inductor is connected with a microstrip filter, the microstrip filter comprises a first open-circuit stub, an impedance line and a second open-circuit stub, one end of the impedance line is connected with the first open-circuit stub, the other end of the impedance line is connected with the second open-circuit stub, and the microstrip filter further comprises an impedance reference surface which is connected with the ground inductor.The integrated filter antenna has the radiation and filtering capabilities, and the structure size is more compact.

A printed film RF micros trip bandpass filter includes a plurality of resonators disposed on a dielectric substrate, first and second input / output (I / O) interfaces connected to corresponding first and second resonators flanking one or more intermediate resonators. Opposite ends of the one or more intermediate resonators are connected to a ground plane on an opposite side of the substrate by corresponding conductors. The intermediate resonators have an electrical wavelength that is one-half a wavelength of a center frequency of the filter and the first and second resonators can have an electrical wavelength that is nominally one-half the wavelength of the bandpass filter center frequency.

The application provides a microstrip filter, comprising: a microstrip line arranged on the surface of a dielectric plate; one end of a first microstrip line is connected with a signal input end, the other end is connected with a second microstrip line in parallel, the other end of the second microstrip line is connected with a fourth microstrip line in parallel, the second microstrip line constitutes a first resonator of a hairpin structure, a third microstrip line constitutes an open stub structure connected in parallel with the second microstrip line and the fourth microstrip line perpendicularly, the other end of a second resonator of a hairpin structure constituted by the fourth microstrip line is connected with a sixth microstrip line perpendicularly, a fifth microstrip line constitutes an open stub connected with the fourth microstrip line perpendicularly, one end of a seventh microstrip line is connected with the sixth microstrip line in parallel, and the other end is connected with a signal output end, so that the problem of impedance mismatching between the input end and the output end of the filter can be solved.

The application discloses a square ring extremely narrow band pass filter thin film circuit, and relates to the technical field of microstrip filter thin film circuits.The circuit comprises a dielectric substrate, a signal input end, a signal output end and a square ring resonator array arranged on the front surface area of the dielectric substrate.The square ring resonator array comprises a plurality of square ring resonators arranged in an array form.Gaps exist between adjacent square ring resonators.The signal input end is directly connected with a square ring resonator at the head of the square ring resonator array, and the signal output end is directly connected with a square ring resonator at the tail of the square ring resonator array.A ground metal layer is arranged on the back surface area of the dielectric substrate.The square ring resonator is connected with the ground metal layer through a metal through hole.The application can effectively improve the out-of-band rejection capability, and the coupling distance, i.e., the gap width, is smaller due to the reduction of the coupling interval, so that the overall performance is more superior.

The invention provides a combiner and a vehicle. The combiner and the vehicle are used for solving the problems that an existing combiner is large in size and high in power consumption. The combiner comprises a first filter and a second filter which work at different frequency bands; the micro-strip filtering power divider is in cascade connection with the first filter and the second filter; the microstrip filtering power divider combines or splits the signal of the first filter and the signal of the second filter; the first filter and the second filter are single-cavity multi-mode filters.