657 results about "Balun" patented technology

Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an output capacitance of the pair of amplifiers.

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

Disclosed is a packaged semiconductor device comprising a semiconductor die comprising a MMIC having a differential output; a package substrate, comprising first second and third metal layers, and electrically connected to the semiconductor die by a plurality of pillars between the semiconductor die and the first metal layer, wherein the first and third metal layers comprise a ground plane, and the second metal layer, therebetween, comprises a single-ended stripline; wherein the differential output is galvanically connected to the first metal layer by a pair of pillars aligned along a first axis; wherein the packaged semiconductor device comprises a balun coupler between the differential output, and the single-ended stripline aligned along a second axis; wherein the balun coupler comprises an opening in the first metal layer, the opening comprising two arms extending in a first direction parallel to the second axis.

Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an input capacitance of the pair of amplifiers.

The invention discloses a biconical antenna balun equivalent circuit modeling optimization method based on a multi-conductor transmission line, and belongs to the technical field of electromagnetic simulation. The method comprises the following steps: firstly, establishing a three-dimensional electromagnetic model of a biconical antenna balun based on a finite element method, and setting ports and defining boundary conditions in combination with an actual current transmission path; then, distribution parameters among conductors are extracted through a multi-conductor transmission line theory, and a Balun circuit topological structure is constructed; and finally, taking the antenna coefficient as an optimization target, carrying out iterative optimization on equivalent circuit element parameters by adopting a multi-target genetic algorithm, considering a plurality of optimization targets in a broadband range, and finally obtaining a high-precision equivalent circuit model. Through combination of electromagnetic simulation and an intelligent optimization algorithm, high-efficiency extraction of complex Balun structure distribution parameters and adaptive optimization of circuit parameters are realized, and the simulation precision of the biconical antenna is remarkably improved.

Disclosed is a packaged semiconductor device, comprising: a semiconductor die comprising an MMIC, the MMIC having a differential output; a package substrate including a first metal layer, a second metal layer, and a third metal layer, and electrically connected to the semiconductor die through a plurality of pillars between the semiconductor die and the first metal layer, where the first metal layer and the third metal layer include a ground plane, the second metal layer between the first metal layer and the second metal layer comprises a single-ended strip line; wherein the differential output is galvanically connected to the first metal layer through a pair of struts aligned along a first axis; wherein the packaged semiconductor device comprises a balun coupler between the differential output and the single-ended stripline aligned along a second axis; wherein the balun coupler comprises an opening in the first metal layer, the opening comprising two arms extending in a first direction parallel to the second axis.

The invention relates to the technical field of microelectronics, semiconductors and communication, and discloses a radio frequency switch chip, and the circuit structure of the radio frequency switch chip comprises a transformer type differential inductor T-L1, a transformer type differential inductor T-L2, a capacitor C1, an NMOS transistor M1, an NMOS transistor M2, a gate resistor RG1, and a gate resistor RG2. The radio frequency switch chip provided by the invention adopts a differential structure, so that the parasitic inductance effect of a grounding key and a wire during packaging and testing can be eliminated, and the insertion loss and the isolation performance are improved; compared with a single-end port, the lower impedance of the differential port is more beneficial to improving the power capacity of the switch; the differential structure allows the transformer type differential inductor to use differential signal characteristics, the equivalent quality factor of the inductor is improved, and the circuit performance is improved; the differential structure can improve the linearity of the circuit, especially the second-order intermodulation effect; the differential structure can be compatible with a modern silicon-based CMOS radio frequency system, and an additional balun is not needed for signal conversion.

The invention relates to the technical field of antennas, in particular to a high-isolation double-frequency common-caliber miniaturized phased-array antenna which comprises a high-frequency-band linear polarization end-fire metal patch array structure, a low-frequency-band linear polarization end-fire metal patch array structure, a public metal reflection floor and a single-layer dielectric substrate. Radiation structures of the high-frequency-band linear polarization end-fire metal patch array structure and the low-frequency-band linear polarization end-fire metal patch array structure are formed by improved dipoles of microstrip balun feed with out-of-band rejection, so that linear polarization is achieved, and then the dipoles are fed through the improved microstrip balun with out-of-band radiation rejection. The suppression on high frequency is further deepened and the decoupling bandwidth is expanded; in addition, a decoupling structure is added between the adjacent common-frequency antennas to improve the isolation and radiation capability between the adjacent common-frequency antenna units, high isolation and wide beam coverage of the dual-frequency common-aperture phased-array antenna can be realized, the performance of the antenna is improved, and the dual-frequency common-aperture phased-array antenna is simple in process and low in cost.

The invention provides an antenna assembly, an antenna and a base station, the antenna assembly comprises a reflection plate, a phase shifter and at least one radiation unit, the radiation unit and the phase shifter are respectively arranged on the front and back surfaces of the reflection plate, the phase shifter comprises a cavity and a phase shift circuit arranged in the cavity, and the phase shift circuit is arranged in the cavity. The radiation unit comprises a radiation part, a feed core and a first balun structure, the first balun structure penetrates through the reflecting plate to be connected with the radiation part and the cavity, and the feed core is arranged in the first balun structure to be electrically connected with the radiation part and the phase shift circuit. The first balun structure penetrates through the reflecting plate to be connected with a cavity of the phase shifter to realize grounding, the feed core is arranged in the balun, the feed core is directly and electrically connected with the phase shifter and the radiation unit, so that the phase shifter and the radiation unit do not need to be connected through a coaxial cable, and the reflecting plate, the phase shifter and the radiation unit are arranged in a split manner, so that the radiation unit is not required to be connected through a coaxial cable. And production and manufacturing are facilitated.

The invention provides an ultra-wideband bidirectional active phase shifter based on reconfigurable PPFs, and belongs to the technical field of microwave radio frequency, the bidirectional active phase shifter adopts a symmetrical structure, and comprises two groups of single-ended to differential ultra-wideband Marchand baluns, two two-order reconfigurable PPFs, four bidirectional variable gain amplifiers and a digital control module; wherein the PPF adopts a two-order adjustable resistor and adjustable capacitor structure, the bandwidth can be expanded to realize the ultra wide band, and when the phase shifter carries out steering operation, the impedance is changed due to switching of a switch, so that an error is introduced, and the impedance is adjusted and the error is reduced by adjusting the resistor and the capacitor. According to the phase shifter, the advantages of an active phase shifter and a passive phase shifter are combined, the area can be further reduced while bidirectional phase shifting operation is achieved and the phase shifting precision is guaranteed, and the problems that a traditional active vector synthesis phase shifter can only conduct unidirectional phase shifting operation, and the area of a passive phase shifter is large are solved.

The present invention provides a broadband filtering unit, which includes a grounding support base, a feeding balun, and a square radiation surface. Both the front and back surfaces of the square radiation surface are copper-clad. Among them, the shape of the copper cladding on the front is similar to four combined square structures. Two square structures located on the diagonal form two oscillator arms in one polarization direction. The middle positions of each oscillator arm are all hollowed out. The oscillator arm is composed of multiple cascaded LC circuits. Multiple open-circuit filtering stub segments are also arranged on the oscillator arm. The present invention is used in a multi-frequency and multi-array combined antenna, which can well avoid interference with adjacent arrays. Its special multiple filtering structure can adapt to various irregular arrays, effectively reduce the size of the antenna, improve the performance of the antenna interleaved array, and has a simple structure, convenient installation, and low cost. At the same time, by adjusting the positions of the LC circuits and the lengths of the filtering stub segments on the unit radiation surface, the expansion of different frequency bands and the filtering of different frequency bands can be achieved.

The present invention is directed towards an apparatus and method to detect electromagnetic radiation or signals emitted by plasma comprising a sensor unit, the sensing unit comprising a first sensor for detecting electromagnetic radiation or signals; an electromagnetic barrier wherein the electromagnetic barrier is configured to surround the first sensor to prevent ambient electromagnetic radiation reaching the first sensor; a first port through which electromagnetic radiation can pass, the port configured for coupling to a port of a plasma chamber such that electromagnetic radiation or signals emitted from the plasma can reach the first sensor; and a first output coupled with a balun and a dual coaxial system whereby a signal sensed is grounded and a phase reversed version of the signal is grounded. A signal acquisition system (SAS) for detecting electromagnetic radiation emitted by a plasma is also described.

The invention belongs to the technical field of antennas, and relates to a common-caliber dual-polarization tight coupling array antenna capable of wide-angle scanning, which comprises a low-frequency antenna array surface, a low-frequency vertical branch knot, a low-frequency feed balun, a high-frequency antenna array surface, a low-frequency feed network and a coaxial connector. According to the invention, a traditional ultra-wideband tight coupling array antenna is decomposed into two antennas with small bandwidths, and loading of resistive materials is avoided through common-caliber configuration. Wherein an upper-layer low-frequency antenna unit is divided into a plurality of sub-units, electromagnetic transparency of a lower-layer high-frequency antenna is realized by adopting a winding line design, mutual interference of high and low frequencies is further inhibited by loading a vertical branch knot, and the fractal low-frequency sub-units are synthesized into a large unit through a power divider. According to the dual-polarization ultra-wideband antenna, the average efficiency reaches 85% in the working frequency bands of 2-6GHz and 7-18GHz, the active standing-wave ratio is smaller than 4 in the scanning range of + / -60 degrees, and the problem that in a traditional design, ultra-wideband, high efficiency, wide-angle scanning and dual polarization cannot be achieved at the same time is solved.

According to an embodiment, a plasma processing system includes a plasma chamber, an RF source, a matching circuit, a balun, and a resonating antenna. The resonating antenna includes a first and a second spiral resonant antenna (SRA), each having an electrical length corresponding to a quarter of a wavelength of a frequency of a forward RF wave generated by the RF source. The first end of the first SRA is coupled to a first balanced terminal of the balun and the second end of the first SRA is open circuit. The first end of the second SRA is coupled to a second balanced terminal of the balun and the second end of the second SRA is open circuit. The first and the second SRA are arranged in a symmetrically nested configuration having a same center point.

The utility model discloses a balun-integrated full-wave oscillator radiation unit, and aims to solve the problems that a low-frequency bowl-shaped oscillator and a high-frequency die-cast half-wave oscillator are used in the conventional high-low frequency nesting scheme, so that the requirements of miniaturization and light weight of an antenna are difficult to meet, the processing cost is extremely high, and the cost is low. And meanwhile, the high-frequency oscillator is arranged in the bowl-shaped oscillator, so that the horizontal plane wave width deformation of the high-frequency oscillator is caused, the gain is influenced, and the market demand cannot be met. The Balun-integrated full-wave oscillator radiation unit comprises a fixed support and a PCB radiation plate installed on the fixed support. The structure of the full-wave oscillator is relatively simple, assembly can be completed only by installing the single-balun integrated feed sheet in the fixing support and welding and fixing the single-balun integrated feed sheet and the PCB radiation plate, miniaturization design can be achieved through the microstrip technology, the printed circuit technology and the like due to the fact that single-face embedded coupling is adopted, the requirement of miniaturization equipment is met, machining is easy, and cost is low. The production efficiency can be greatly improved, and the production cost is reduced.

The invention provides an antenna and an antenna array. The antenna comprises a first oscillator and at least one second oscillator. And the working frequency of the first vibrator is smaller than that of the second vibrator. Each of the first vibrator and the second vibrator comprises a first balun assembly, a second balun assembly and a radiation structure; the radiation structure comprises a dielectric substrate, a radiation layer and a coupling layer; the radiation layer comprises four radiation parts; the coupling layer comprises four coupling parts; one radiation part and one coupling part are correspondingly arranged, and orthographic projections of the radiation part and the coupling part on the dielectric substrate are overlapped; the second oscillator further comprises a first transmission layer arranged on the first surface side and a second transmission layer arranged on the second surface side, the first transmission layer is connected with the radiation part, and the second transmission layer is connected with the coupling part; orthographic projections of the first transmission layer and the second transmission layer on the dielectric substrate are at least partially overlapped, and the first transmission layer and the second transmission layer are electrically connected through a via hole penetrating through the dielectric substrate.

An electronic device may include wireless circuitry having an oscillator. The oscillator can include a first transistor having a source-drain terminal coupled to a tail node, a second transistor having a source-drain terminal coupled to the tail node, a first coil having a first terminal coupled to the tail node and having a second terminal coupled to a power supply line, and a second coil inductively coupled to the first coil. The first and second coils can be part of a balun. The balun can be coupled to a tunable capacitance. The tunable capacitance can include multiple differential switchable capacitor circuits. The balun and the tunable capacitance can form a balun phase noise filter configured to reduce a phase noise associated with the oscillator.

According to the low-insertion-loss broadband balun equivalent circuit for the base station and the balun thereof, the low-insertion-loss broadband balun equivalent circuit is based on the LTCC (Low Temperature Co-fired Ceramic) technology, the Marchand structure principle design is adopted, a 1 / 4 wavelength coupling line is realized through a broadside coupled spiral structure, the size of the balun is greatly reduced, meanwhile, two groups of coupling transmission lines adopt a folding mode, the three-dimensional wiring advantage of the LTCC technology is fully utilized, and the size of the balun is greatly reduced. Signal shielding cover is carried out in the middle through GND, crosstalk between two groups of coupling transmission lines is avoided, and the novel base station has the functional characteristics of small insertion loss, good amplitude flatness, high phase consistency, broadband and small size.

The invention provides a millimeter wave digital power amplifier based on a serial transmission line balun synthesis network, and belongs to the technical field of millimeter wave digital power amplifiers. According to the millimeter wave digital power amplifier, firstly, a driving power distribution network based on a bridge and a transformer is adopted, and radio frequency power is subjected to differential conversion and then input into a digital power amplifier unit array; secondly, the digital power amplifier unit adopts a differential Cascode structure with a neutralizing capacitor, so that the gain and the output impedance of the digital power amplifier unit can be effectively improved; finally, a synthesis network based on a series transmission line balun is adopted, the synthesis network can realize active load modulation optimization of the digital power amplifier, the impedance matching condition of the digital power amplifier under the maximum and partial rollback output power levels is improved and balanced, and the overall efficiency is improved.

The invention discloses a double-frequency circularly polarized antenna element, which belongs to the technical field of antennas and comprises a high-frequency-band radiation unit and a low-frequency-band radiation unit. The high-frequency band radiation unit comprises a first dielectric substrate and a first feed probe. A first radiation patch is embedded in one end face of the first dielectric substrate, and the first radiation patch is provided with two symmetrical chamfers. The top end of the first feed probe passes through the first through hole and is fixedly connected with the first radiation patch. The low-frequency-band radiation unit comprises a second dielectric substrate, a second radiation patch and a third dielectric substrate. The second radiation patch is arranged on the second dielectric substrate. The second dielectric substrate is provided with a second metalized through hole. The third dielectric substrate is provided with a Chebyshev Balun feed printed line. The antenna element provided by the invention not only can realize the circular polarization of the antenna, but also can reduce the coupling between antennas of different working frequency bands while expanding the bandwidth of the antenna, improve the isolation between two working frequency band ports, and reduce the cross polarization.

Ultra-Wideband (UWB) technology is a wireless technology supporting the transmission of large amounts of digital data over short distances using coded impulses over a wide frequency spectrum with very low power. Enhanced link performance and functionality of such UWB systems is presented exploiting multiple directive antennas for spatially filtering undesired signals and increasing signal strength whilst circuit complexity is reduced by eliminating baluns in prior art solutions. Further enhancements support payloads with flexible encoding schemes, improved channel utilization, reduced processing logic, improved robustness in correlation techniques, versatile synchronisation techniques, improved ranging, as well as providing for improved inter-symbol interference tolerance and detection.

The invention belongs to the technical field of microwave antennas, and particularly provides a tight coupling phased-array antenna based on an application frequency-variable impedance matching layer, so as to solve the challenges of the existing phased-array antenna in the aspects of dynamic adjustability and environmental adaptability. The three-order Chebyshev impedance converter comprises a reconfigurable surface loaded with a diode, a bow-tie type dipole, a double-Y balun, a three-order Chebyshev impedance converter, a coaxial feed port, a metal floor, a dielectric layer, a grounding metal sheet and a metal chip resistor. The three-order Chebyshev impedance transformer, the chip resistor and the double-Y balun are cascaded to carry out broadband balanced feed on the dipole, and the dielectric constant and the magnetic conductivity of the dielectric substrate are changed through the on-off of the diode, so that the impedance matching and radiation characteristics of the phased-array antenna are improved. According to the invention, dynamic requirements of modern communication and radar systems on antenna performance can be met.

A wideband dual-mode antenna comprising: a dielectric substrate; a conductive layer disposed on a first face of the dielectric substrate; two tapered slots separated from each other by a linear center conductor formed in the conductive layer, wherein the tapered slots narrow to slot-lines terminated by respective baluns at a feed end of the wideband dual-mode antenna; and wherein the two slot-lines follow paths that, at the feed end, transition from being parallel to the center conductor to following meandering paths that curve away from, and then back towards, the center conductor.

The invention discloses a Terahertz broadband high-gain Vivaldi antenna based on a CPW (Coherent Plane Waveguide) rotary slot line structure, and belongs to the field of Terahertz communication. The antenna adopts an integrated single-layer metal structure on the top layer of a dielectric substrate, and is divided into a radiation arm and a CPW rotating slot line balun along the axial direction. The inner side edge of the radiation arm is a smooth exponential change curve, and the middle exponential gradual change groove forms a broadband traveling wave radiation channel. Periodic grid choke grooves are loaded on the outer side edge so as to suppress edge surface waves and improve a directional diagram. The feed part adopts a CPW to slot line balun structure to realize conversion from an unbalanced mode to a balanced mode, and a fan-shaped radial branch knot is utilized to form a broadband virtual short circuit boundary at a feed point to ensure unidirectional efficient transmission of energy. In addition, a group of string-shaped director patches are arranged in the opening area of the exponential gradual change groove along the central axis, and the wave beam is guided through phase correction. The terahertz planar antenna effectively solves the problems of limited bandwidth and insufficient gain of the terahertz planar antenna, and has the characteristics of compact structure, easiness in integration, excellent radiation performance and the like.

The invention specifically provides a low-cross-polarization ultra-wideband wide-angle scanning low-profile tight coupling phased-array antenna based on metal grid loading, and belongs to the technical field of microwave antennas. The three-order Chebyshev impedance transformer comprises a C-shaped ring metasurface loading wide-angle matching layer, a folded dipole, a double-Y balun, a three-order Chebyshev impedance transformer, a coaxial feed port, a metal floor, a metal grid, a grounding metal sheet, a resistive film, a dielectric layer and a metal chip resistor. Different polarization electromagnetic waves are regulated and controlled through the metal grid, the resistive film is introduced to absorb cross polarization components, the front-to-back ratio is improved, and the cross polarization level is smaller than or equal to-30 dB; the working bandwidth is expanded to 5.6: 1 under the condition that the profile is only 0.09 lambda by combining the size design of the non-uniform unit and the gradient balun feed, and the scanning of the wide angle of + / -60 degrees of an E surface and an H surface is supported. The invention has the advantages of compact structure, high polarization purity and wide-angle stability, and is suitable for 5G / 6G communication, radar and electronic countermeasure systems.

The invention discloses a non-uniform compression high-order mode + / -45-degree dual-polarized base station antenna. The non-uniform compression high-order mode + / -45-degree dual-polarized base station antenna comprises a single-layer dielectric substrate, two pairs of non-uniform compression five-order mode dipoles and two pairs of fundamental mode dipoles, wherein the two pairs of non-uniform compression five-order mode dipoles are printed on the single-layer dielectric substrate; a balun coupling feeding mode is adopted, and SMA is used for exciting a high-order mode dipole and a fundamental mode dipole to generate radiation. According to the non-uniform compression high-order mode + / -45-degree dual-polarized antenna, due to the introduction of the non-uniform compression high-order mode dipole, the gain is effectively improved, the phase of an electric field is adjusted through the bending of the coplanar strip line, the amplitude of the electric field is adjusted through the adjustment of the size of the coplanar strip line and the design of the reflecting plate, and the cross polarization ratio is effectively improved.

The invention relates to the technical field of radio frequency, and discloses a differential phase self-calibration single-power-supply variable gain distributed balun circuit which comprises a differential phase calibration module, an ultra-wideband matching gain adjustment module and a distributed balun amplifier core module connected with the differential phase calibration module and the ultra-wideband matching gain adjustment module. On the basis of a traditional differential-to-single-ended distributed balun circuit, the defect that a traditional distributed balun needs multiple sets of power voltages is overcome by only needing one set of power voltages, and meanwhile, the distributed balun circuit provided by the invention also has a digital gain calibration function, so that the balun has a higher degree of freedom in use. In addition, a differential signal self-calibration circuit is further used, and it is guaranteed that the phase error of balun differential input is minimized.

The invention discloses an antenna design method integrated with a two-dimensional structure balancer. The two-dimensional structure balancer is composed of a feed cable and a simulation cable, wherein the feed cable and the simulation cable are bent along a characteristic line of a two-dimensional oscillator and attached to the surface of the two-dimensional oscillator. According to the invention, a low-frequency resonance point can be introduced without adding any load or disturbance, the lower limit working frequency of the antenna is expanded, and the broadband performance is realized. The broadband performance is realized, and only the horizontal polarization component is excited when the antenna is horizontally arranged. The antenna is simple in structure, low-frequency resonance points can be introduced without additional loading or disturbance, broadband performance is achieved, the original size of the antenna is kept, the antenna has the advantage of miniaturization, and the antenna is easy and convenient to manufacture and high in cost effectiveness. The antenna array can also be used for an oscillator antenna with any two-dimensional convex boundary shape, an antenna array unit can be designed and arrayed according to the scheme, the antenna array unit is expected to be further designed and used for all communication frequency bands, and the antenna array unit has wide application prospects in high-speed data transmission scenes such as low-altitude service and everything intelligent connection.

The invention relates to the technical field of antennas, in particular to a low-frequency radiation unit and an antenna. The radiation unit comprises a dielectric substrate, a radiation part and a decoupling part, the radiation part and the decoupling part are arranged on the dielectric substrate, and the radiation part and the decoupling part are in coupling connection. The radiation part comprises a feed balun, a first radiation arm group and a second radiation arm group, and the feed balun supports the dielectric substrate and is electrically connected with the first radiation arm group and the second radiation arm group; the polarization direction of the first radiation arm group is perpendicular to the polarization direction of the second radiation arm group. The decoupling part, the first radiation arm group and the second radiation arm group are arranged on the same side of the dielectric substrate, the first radiation arm group and the second radiation arm group are correspondingly provided with decoupling parts, and the decoupling part and the corresponding first radiation arm group or the second radiation arm group are arranged at intervals. The electromagnetic waves of the high-frequency radiation unit generate secondary resonance on the decoupling part, so that the effect of enhancing high-frequency radiation is achieved, and the effect of transmitting the high-frequency electromagnetic waves is equivalently enhanced.

The invention discloses a wide-beam omnidirectional circularly polarized antenna and a radio communication system comprising the same, and belongs to the technical field of linear communication antennae, the wide-beam omnidirectional circularly polarized antenna comprises a feed connector, a printed board feed balun, a conical hollow substrate, a feed printed board and a radiation printed patch; by adopting the split type conical substrate which is composed of the feed printed board at the top and the conical hollow substrate, connection and conduction of the feed printed board and other structures are facilitated, and the process cost is reduced while the process credibility is enhanced; the feed form of the antenna is set to be printed board balun feed, the microstrip line extending according to a certain curvilinear equation is arranged on the copper layer of the printed board balun, and the printed board feed balun is connected and conducted with the spiral radiation printed patch through the feed printed board, so that the performance requirements of low axial ratio and high gain of the antenna can be ensured, and the antenna can be widely applied to the field of antenna devices. And the technical requirements of wide wave beams can be met.