124 results about "Microstrip antenna" patented technology

The invention provides an integrated antenna integrating Beidou, low-orbit and Tiantong satellite communication and high-precision navigation positioning. A low-orbit satellite microstrip antenna, a GNSS high-precision microstrip antenna, a Tiantong microstrip antenna and a Beidou short message microstrip antenna are sequentially stacked on the upper surface of a PCB in a conical mode. A shielding cover is arranged on the lower side of the PCB; antenna radiation patches of the low-orbit satellite microstrip antenna are arranged on the outer edges of the upper surface and the lower surface of the low-orbit satellite antenna substrate and are not covered by the GNSS high-precision microstrip antenna; circuits of the low-orbit satellite microstrip antenna and the sky-pass microstrip antenna are arranged on the upper surface of the PCB circuit substrate. And circuits of the GNSS high-precision microstrip antenna and the Beidou short message microstrip antenna are arranged on the lower surface of the PCB. According to the invention, the four-in-one combined design of the antenna, the low-orbit satellite antenna, the Beidou short message antenna and the high-precision navigation antenna is adopted, so that the problem of performance insufficiency when each antenna is used independently is solved, complementation among the antenna, the low-orbit satellite antenna, the Beidou short message antenna and the high-precision navigation antenna is realized, and the cost is reduced; the electromagnetic compatibility between the antennas is improved through frequency band and polarization isolation design, and the stability of a communication link is guaranteed through interference resistance of the peripheral low-orbit satellite antenna.

A microstrip antenna which includes a substrate, a microstrip patch configured on a first side of the substrate, a ground configured on a second side of the substrate which is opposite to the first side, and a first shorting wall extending from a side of the microstrip patch toward the ground. The first shorting wall substantially overlaps with the substrate on a direction that is perpendicular to the microstrip patch. The first shorting wall is located at a first non-radiating edge of the microstrip antenna. Dummy elements are no longer needed in this design, which makes it compact.

The invention relates to a single-person installation tool for a conical surface product microstrip antenna, and solves the problems of low efficiency and insufficient reliability of the existing tool and method. The tool comprises a tool main body block, the tool main body block is provided with a positioning pin, one side of the tool main body block is fixedly connected with an elastic bridle, the two sides of the elastic bridle are respectively provided with a non-elastic bridle fixedly connected to the tool main body block, and a buckle matched with the elastic bridle and a ratchet tensioner matched with the non-elastic bridle are fixedly connected to the other side of the tool main body block. A wave-absorbing sponge is fixed on the surface of the tool main body block, and the tool main body block is provided with a signal line interface which is respectively connected with the microstrip antenna and the signal simulator. The front end and the rear end of the tool are fixed through the inelastic bridle and the ratchet tensioner, the consistency of installation of the test tool every time is improved, the stability of installation is improved, interference of human factors is reduced, the possibility of electromagnetic leakage is reduced, and the testing accuracy of the radio altimeter is improved.

The embodiment of the present application relates to the technical field of antenna, and discloses a microstrip antenna, the microstrip antenna includes dielectric substrate, radiation patch and ground sheet, the dielectric substrate is provided with first surface and second surface, the first surface and the second surface are oppositely arranged;The radiation patch is arranged on the first surface, and the radiation patch is provided with a plurality of first slits;The ground sheet is arranged on the second surface, and the ground sheet is provided with a plurality of second slits, wherein, in the direction from the first surface to the second surface, the radiation patch and the ground sheet overlap, and the vertical distance between the radiation patch and the ground sheet is less than 0.01 lambda. Through the above mode, the embodiment of the present application can realize the end-fire of the microstrip antenna.

This invention relates to a microwave multi-mode flow measurement method for horizontal oil-water two-phase flow, employing a combination of a coplanar waveguide-excited helical microwave sensor and a dual-coaxial microstrip antenna sensing unit. The method includes: constructing a relationship between the mixing dielectric constant and water holdup of the horizontal oil-water two-phase flow based on the phase output signal of the coplanar waveguide-excited helical microwave sensor, thereby obtaining formulas for predicting water holdup and oil holdup using the dielectric constant of the oil-water mixture in a horizontal pipe; utilizing the upstream and downstream phase output signals of the dual-coaxial microstrip antenna sensing unit; constructing a correlation velocity model for the horizontal oil-water two-phase flow under different operating conditions based on experimental data, obtaining the functional relationship between the correlation velocity of the mixed fluid in the pipe and the mixing velocity and the phase-separated apparent velocity; and constructing a drift model for the horizontal oil-water two-phase flow under different flow patterns, obtaining functions relating the mixing velocity, the oil phase apparent velocity, and the oil holdup. This invention offers high measurement accuracy.

The invention relates to the field of unmanned aerial vehicle early warning, and provides a helmet-type lightweight individual unmanned aerial vehicle early warning interference system, which comprises a helmet, uniformly distributed microstrip antennas are attached to the outer wall of the helmet, the microstrip antennas provide an unmanned aerial vehicle data transmission communication link, and a signal processor is fixedly connected to the rear side of the outer wall of the helmet. The input end of the signal processor is electrically connected with the output end of an elastic cable, the input end of the elastic cable is electrically connected with a battery, the battery is used for supplying power to the signal processor, the bottom ends of the left side and the right side of the outer wall of the helmet are fixedly connected with alarm devices, and the alarm devices are used for giving an alarm. And the carrier is prompted of abnormal danger. Based on the radio reconnaissance interference technology, in the marching or sightseeing process of an individual soldier, a helmet is worn to be powered on, when a suspicious unmanned aerial vehicle signal is detected, alarm equipment gives an alarm, and soldiers in ground combat and armored vehicles can rapidly recognize and discover the small unmanned aerial vehicle.

This invention relates to the field of aircraft antenna technology, and discloses a low-tilt, wide-beam, high-gain, low-profile aircraft antenna, comprising a rectangular waveguide body, a radiating aperture, a beam modulation control, and a protective structure. The radiating aperture is the open end of the rectangular waveguide body, the beam modulation control is located at the radiating aperture, and the protective structure covers the rectangular waveguide body and the radiating aperture. The rectangular waveguide body is a highly compressed structure. This invention solves the problems of high beam tilt, narrow beamwidth, and low antenna gain commonly used in microstrip antennas for aircraft, and features low tilt, wide beam, high gain, and low profile, which can greatly improve the widespread use of low-tilt, wide-beam, high-gain, low-profile antennas in various aircraft.

The utility model provides a four-array microstrip antenna applied to a high-frequency wireless charging technology, which comprises patch antennas arranged in a 2 * 2 array and a feed network connecting the four patch antennas, and the feed network comprises two identical T-shaped power dividers. Four output ports of the two T-shaped power dividers are respectively connected with a patch antenna through a first microstrip line, and input ports of the two T-shaped power dividers are connected through a second microstrip line. The four-array microstrip antenna provided by the utility model has a good transmission characteristic, and the radiation gain of the antenna array is improved.

This invention discloses a surface waveguide microstrip antenna for solid-state color center spin. The surface waveguide microstrip antenna includes an outer antenna, a middle antenna, and an inner antenna on a diamond substrate. Blind holes are formed on the substrate, and the diamond is nested within these holes, with the upper surface of the diamond flush with the upper surface of the substrate. The outer, middle, and inner antennas are all square ring-shaped and nested sequentially from the outside to the inside. Each of the outer and middle antennas has an opening on its side, located on opposite sides of their respective antennas. The outer, middle, and inner antennas together form the surface waveguide microstrip antenna with a resonant frequency of 2.87 GHz. Electromagnetic waves are transmitted between the surface waveguide microstrip antennas via radiation, generating resonance. This invention not only offers high power and high uniformity of the microwave magnetic field but also eliminates the need for additional flying wires, simplifying the installation process.

Even when mounted on a dielectric panel, it reduces the non-uniformity of the radiation pattern compared to conventional methods. [Solution] The antenna device 1 comprises an antenna module 10 configured as a microstrip antenna including planar feeding elements 14, 16 and a ground conductor 12, and strip-shaped parasitic elements 22, 23. The parasitic elements 22, 23 have a length of 3 / 4 or more of the operating wavelength λ of the antenna device 1. At least a portion of the parasitic elements 22, 23 is at a distance of 1 / 4 to 3 / 4 of the operating wavelength λ of the antenna device 1 from the ground conductor 12.

The present invention provides a thermosetting resin composition that yields a cured product (dielectric substrate) with excellent high dielectric constant and low dielectric loss tangent, a dielectric substrate made from the resin composition, and a microstrip antenna equipped with the dielectric substrate. [Solution] The thermosetting resin composition of the present invention comprises (A) a thermosetting resin, (B) a high dielectric constant filler, and (C) a coupling agent represented by the following general formula (1), wherein the high dielectric constant filler (B) comprises at least one selected from calcium titanate, strontium titanate, barium titanate, magnesium titanate, and titanium oxide. TIFF2026111704000022.tif16153

The application discloses a high-isolation low-cross-polarization dual-linear-polarization microstrip antenna, belonging to the field of microwave radio frequency antennas, and containing a parasitic patch, a main radiation patch, an integrated differential feeding network and a metal cavity. The main radiation patch adopts four-point central symmetric differential feeding, and two groups of orthogonal feeding points are excited through a multilayer PCB built-in 3dB / 180° differential feeding network to cancel common-mode current and polarization coupling field from a radiation source. The main radiation patch and the bottom feeding network are physically separated by an independent non-contact metal ground layer to prevent direct current conduction coupling. A continuous metal ground isolation belt is arranged between the two groups of polarization feeding networks, and a dense array of metalized ground holes is arranged to form a virtual electric wall to block the coupling of the feed line and the horizontal propagation of the substrate surface wave. The antenna retains the low profile and miniaturization characteristics of the microstrip antenna, and has high isolation, low cross-polarization and wideband characteristics in the full frequency band. The structure is simple and easy to produce, and is suitable for wireless communication, radar and satellite communication scenes.

The utility model discloses a metasurface structure for reducing normal incident scattering of an antenna, and the metasurface structure employs a double-layer design, combines an absorption layer and a frequency selection surface layer, and achieves broadband absorption through a periodically two-dimensional unfolded microstrip patch unit and a three-layer resistor loading metal ring. Ansys electromagnetic field simulation software verifies that the structure effectively reduces the radar cross section of the microstrip antenna within the frequency band of 3-10 GHz, and ensures the normal work of the antenna at the same time. Through deep analysis and simulation optimization, key factors influencing the performance are determined, and the balance between the wave permeability and the wave absorbing property is realized. Besides, an adjustable resistance circuit, a reconfigurable mechanism, an intelligent algorithm and a sensor technology are integrated, the stability and the automation level of the antenna performance are further improved, and an effective solution is provided for improving the scattering reduction effect during forward incidence of radar waves.

The utility model discloses a dual-frequency circularly polarized combined antenna, which comprises a metal reflecting plate, a high-frequency circularly polarized radiation unit and a low-frequency wide-beam radiation unit, the high-frequency circularly polarized radiation unit and the low-frequency wide-beam radiation unit share the same reflecting plate, and the high-frequency circularly polarized radiation unit is positioned above the low-frequency wide-beam radiation unit. According to the utility model, the embedded orthogonal dipole pair is adopted, so that the high-frequency-band axial ratio bandwidth breaks through the limitation of the traditional single-feed microstrip antenna, the relative bandwidth with the actually measured axial ratio less than or equal to 3dB reaches 18.7%, and the Beidou third-generation B1C / B2a frequency band requirement can be completely covered. The nickel-chromium alloy films evaporated on the upper and lower surfaces of the dielectric plate effectively inhibit interlayer crosstalk, the cross polarization ratio is improved to be greater than 15dB, and the dual-band radiation purity is ensured.

To address the problems existing in the prior art, this invention provides a microstrip antenna frequency adjustment method and an automatic microstrip antenna frequency adjustment system for executing this method. The microstrip antenna frequency adjustment method includes: Step 1.1 Testing the target microstrip antenna frequency to obtain frequency A. Step 1.2 Analyzing the difference C between frequency A and the target frequency B of the target microstrip antenna. Step 1.3 Determining whether frequency adjustment is needed based on the difference C. When frequency adjustment is needed, applying a corresponding UV adhesive to a specific area of ​​the target microstrip antenna. Step 1.4 Curing the applied UV adhesive to complete the microstrip antenna frequency adjustment. This invention enables microstrip antennas that would otherwise be defective or scrap to meet standard requirements, reducing the quantity and proportion of microstrip antennas resold as scrap. Furthermore, it allows for rapid adjustment of the microstrip antenna's transmission frequency without changing the original manufacturing process or substrate material, demonstrating excellent adaptability to production requirements.

The present disclosure relates to the technical field of antennas, in particular to a microstrip antenna unit and a spaceborne phased array antenna. The microstrip antenna unit is applied to the spaceborne phased array antenna. The microstrip antenna unit comprises a ground plate, a dielectric layer arranged on the ground plate, and a radiation patch arranged above the dielectric layer. The radiation patch is circular in whole, concentrically provided with a fan ring-shaped through slot, and at least provided with two open slots at the edge. The radiation patch is used to form a circularly polarized wave through feeding. One or more through holes are arranged at the opening of the fan ring-shaped through slot of the radiation patch, forming a plurality of current paths from the feeding position of the radiation patch to the edge of the radiation patch. The present disclosure can simultaneously realize wide beam, uniform radiation, low profile, high reliability, easy scale array, strong engineering implementation, and has wide application value.

The invention relates to the technical field of complex medium moisture content detection, and discloses a portable complex medium moisture content intelligent detection terminal and system based on a terminal side lightweight algorithm, and the system comprises a detection terminal, an integrated multi-type sensor module, a low-power-consumption embedded processing unit and a lightweight algorithm. Electromagnetic scattering noise is eliminated through the microstrip antenna and the anti-interference filter circuit, and the moisture content of a single point can be calculated locally in real time. Each terminal uploads data to a sink node through a LoRa module by adopting a TDMA mechanism, the node calculates the regional moisture content through a space-time calibration and dynamic weighted fusion algorithm, generates a continuous thermodynamic diagram by means of inverse distance weighted interpolation, and finally realizes visualization and alarm functions through a mobile terminal APP. The problems that traditional equipment depends on cloud computing power and is poor in portability and high in detection delay are effectively solved, and high-precision, low-power-consumption and real-time moisture content detection is achieved through terminal-side intelligent computing and miniaturized hardware design.

The application discloses a kind of symmetric split ring slot and L-shaped coupling branch combined hexagonal multi-frequency microstrip antenna, which can be applied to 5G mobile communication system;The antenna is composed of dielectric substrate, radiation patch and ground plate;Two split ring slot structures symmetric about the central axis of the patch are introduced in the upper half of the radiation patch, and two L-shaped coupling branches are added about the central axis of the feed line;The antenna uses embedded feed-in form, and the feed-in is inserted into the internal radiation patch;The antenna has simple structure, easy to process, resonant frequency is convenient to adjust, and has good passband matching characteristics;The application is designed to work in 28GHz, 37.5GHz, 44.5GHz and 50.5GHz frequency bands, and is suitable for 5G millimeter wave communication.

A folded dipole patch antenna for use in a hyperthermia applicator is described. The antenna includes a dielectric circuit board, and a folded dipole microstrip antenna. The dielectric circuit board has a top side and a bottom side. The folded dipole microstrip antenna is formed on the top side and includes two meander paths mirror each other. A pair of parallel metallic strips is located on the bottom side. A coaxial feed port is connected to the pair of parallel metallic strips. The antenna is configured to resonate in a frequency range of about 434 MHz upon application of an input signal at the coaxial feed port. The folded dipole patch antenna has a small size and does not require an impedance matching circuit. The hyperthermia applicator is configured to emit microwave energy toward a target tissue within a human body.

The application discloses a kind of adhesion manufacturing methods of missile-borne dual-polarized dual-band integrated antenna assembly, it is related to radar electronic antenna feeder subsystem manufacturing technical field, comprising the following steps: step one: process multiple recesses on a shell, and in multiple recesses are all point coating conductive glue;Step two: insert Ku / Ka frequency band elastic connector in multiple recesses, and the interconnection of shell and elastic connector is completed by curing process;Step three: lay integrated conductive glue film on integrated antenna microstrip board, and install positioning pin;Step four: integrated antenna microstrip board is installed on shell by positioning pin, assembled to glue joint tooling;The application realizes the multidimensional interconnection of dual-polarized antenna assembly at lower temperature by conductive glue and conductive glue film, with high integration and high reliability;And the missile-borne dual-polarized dual-band integrated antenna assembly can be used in Ku / Ka dual, since microstrip antenna ground is continuous, standing wave can be realized ≤1.5, and millimeter wave use range electrical performance is excellent.

This application discloses a broadband dual-polarized antenna based on a bimetallic cavity, relating to the field of microstrip antenna technology. It includes an upper dielectric substrate, a lower dielectric substrate, a metal grid, and a metal ground plane. A radiating patch is disposed on the lower surface of the upper dielectric substrate, and a feed patch is disposed on the upper surface of the lower dielectric substrate. Screws are respectively disposed on the horizontal and vertical directions of the outer edge of the feed patch. The feed patch and screws are connected by a bent microstrip line. The screws penetrate through the lower dielectric substrate and extend to the metal ground plane. A groove is provided on the upper surface of the metal ground plane, and an edge air hole corresponding to the screw position is provided on the edge of the groove. The edge air hole penetrates through the metal ground plane and is used to introduce the feed. The broadband dual-polarized antenna based on a bimetallic cavity provided by this application not only has a wide bandwidth, strong compactness, and small size, but also effectively reduces the manufacturing cost of array antennas.

A microstrip antenna which includes a substrate, a microstrip patch configured on a first side of the substrate, a ground configured on a second side of the substrate which is opposite to the first side, and a first shorting wall extending from a side of the microstrip patch toward the ground. The first shorting wall substantially overlaps with the substrate on a direction that is perpendicular to the microstrip patch. The first shorting wall is located at a first non-radiating edge of the microstrip antenna. Dummy elements are no longer needed in this design, which makes it compact.

The embodiment of the invention provides a UWB antenna module, a UWB antenna module group and washing equipment. The UWB antenna module comprises a circuit board, the circuit board comprises a radiation layer and a feed layer which are stacked, and the feed layer is integrated with a feed network; the four microstrip antenna units are all arranged on the radiation layer and are respectively connected with the feed network, the physical sizes of the four microstrip antenna units are consistent, and the centers of the four microstrip antenna units are collinear and are arranged along the horizontal direction; wherein the four microstrip antenna units comprise three transmitting antenna units and a receiving antenna unit which are sequentially arranged in the horizontal direction, the three transmitting antenna units are arranged at equal intervals, and the center distance between every two adjacent transmitting antenna units is 0.3-0.4 time of the wavelength corresponding to the center frequency of the ninth UWB channel.

The utility model relates to a high-isolation dual-polarized microstrip antenna and communication equipment. The high-isolation dual-polarized microstrip antenna comprises a radiation patch, a first dielectric layer, an excitation cancellation layer, a second dielectric layer and a grounding layer which are stacked in sequence. The high-isolation dual-polarized microstrip antenna further comprises a first feed probe and a second feed probe, the first feed probe penetrates through the second dielectric layer and is connected with the first feed point of the excitation cancellation layer, and the second feed probe penetrates through the second dielectric layer and is connected with the second feed point of the excitation cancellation layer. The excitation cancellation layer is used for adjusting the amplitude and phase of a transmission signal between the first feeding point and the second feeding point so as to suppress electromagnetic coupling between the first feeding point and the second feeding point. By adopting the high-isolation dual-polarization microstrip antenna, high-polarization isolation can be realized.

The utility model discloses a built-in single Beidou high-precision positioning module of a mobile terminal, which comprises a Beidou special-purpose antenna unit, a radio frequency front-end processing unit, a radio frequency front-end processing unit, a radio frequency front-end processing unit, a radio frequency front-end processing unit and a radio frequency front-end processing unit, wherein the Beidou special-purpose antenna unit adopts a right-handed circular polarization microstrip antenna structure and is integrated inside the mobile terminal for receiving Beidou satellite signals; comprising a low noise amplifier, a multi-frequency-point filter and an analog-to-digital conversion module, the multi-frequency-point filter supports signal separation and anti-interference processing of Beidou B1, B2 and B3 frequency bands, a baseband processing unit, a built-in single Beidou signal demodulation chip, supports multi-frequency-point joint calculation of a Beidou third satellite, and integrates an adaptive anti-multipath interference algorithm and a power management unit, and the analog-to-digital conversion module is connected with the baseband processing unit. A dynamic voltage regulation technology is adopted, power supply voltage is switched according to a positioning mode, and a dormant state is entered when no positioning requirement exists; according to the utility model, by optimizing a hardware architecture and an algorithm, high-precision, low-power-consumption and miniaturized design is realized.

The invention relates to the technical field of microwave antennas, in particular to a broadband circularly polarized antenna and a circularly polarized antenna array. The broadband circularly polarized antenna comprises a surface layer substrate, a middle layer substrate and a bottom layer substrate which are sequentially arranged from top to bottom, the surface layer substrate is provided with an upper radiation patch; the middle substrate is provided with a lower radiation patch and a transmission feed structure; the bottom substrate is provided with a shielding layer; the antenna is characterized in that the transmission feed structure comprises a linear transmission line and an L-shaped matching coupling line; and a feed signal hole of the transmission feed structure is connected with one end of the transmission line. Transmission line coupling feeding is adopted, and the working bandwidth of the antenna is widened; a multi-branch feeding mode is combined, and an L-shaped matching coupling line is introduced, so that the multi-mode characteristic of the microstrip antenna is effectively excited, and the working frequency band of the antenna is improved. The transmission line and the matching branch are coupled to form a 90-degree phase difference, the polarization purity of the antenna is improved, the axial ratio of the antenna is improved, and meanwhile the multimode characteristic and frequency band broadening of the microstrip antenna are achieved.

The utility model discloses a profiling sandwich type microstrip antenna and a radar system. The profiling sandwich type microstrip antenna comprises an upper cover plate, a microstrip antenna row, a lower cover plate, a fixing piece and a mounting piece. According to the utility model, the lower cover plate, the microstrip antenna row and the upper cover plate are arranged from bottom to top to form a sandwich structure; the inner walls of the upper cover plate and the lower cover plate are respectively provided with a power division network profiling cavity, and the power division network profiling cavities provide electromagnetic shielding and supporting effects for the microstrip antenna. In combination with the sandwich type structure and the power division network profiling cavity, the dielectric loss and the overall weight of the microstrip antenna are reduced, so that the requirements of light weight and high radiation efficiency are met.

The utility model provides a dual-frequency microstrip antenna. The dual-frequency microstrip antenna comprises a dielectric substrate, a floor, a radiation patch assembly and a feed probe. The dielectric substrate and the floor are oppositely arranged at an interval, and the feed probe is connected with the dielectric substrate and the floor; the radiation patch assembly comprises a first radiation patch, a second radiation patch and a third radiation patch; the radiation patch assembly is electrically connected with the feed probe; the first radiation patch and the second radiation patch are arranged on the first surface, away from the floor, of the dielectric substrate, the third radiation patch is arranged on the second surface, facing the floor, of the dielectric substrate, a through hole is formed in the middle of the second radiation patch, the first radiation patch is arranged in the inner side area of the hole, and the first radiation patch and the second radiation patch are arranged at intervals. The first radiation patch is used for generating high frequency through resonance, the second radiation patch and the third radiation patch are electrically connected for generating low frequency through resonance, and the dual-frequency microstrip antenna can consider performance, cost, weight and size.

The utility model discloses a heat radiation structure for a temperature-uniforming plate of a microstrip antenna, which relates to the field of thermal control of spacecrafts and comprises a substrate and the temperature-uniforming plate, and the temperature-uniforming plate is attached to the lower portion of the substrate to conduct heat. The array heat source chip is mounted above the substrate, the conductor patch is adhered to the top end of the substrate, and the low-heat-consumption chip and the back heat source chip are mounted on the bottom surface of the substrate; the upper surface of the temperature-uniforming plate is provided with an avoiding groove facilitating installation of the low-heat-consumption chip and the back heat source chip, and a heat conduction pad is installed between the upper surface of the temperature-uniforming plate and the lower surface of the substrate. Heat generated in the running process of a heating chip device is quickly conducted to the temperature-uniforming plate, and then the heat is expanded through the high heat conductivity characteristic of the temperature-uniforming plate, so that the temperature gradient of the antenna can be reduced, the heat of the antenna can be efficiently conducted to a mounting surface to be dissipated, the temperature of the device is reduced, and the performance and the service life of the antenna are improved.

This invention belongs to the field of communication antenna technology, specifically relating to a wide-bandwidth, wide-beamwidth, wide-axis-ratio circularly polarized antenna applied to the Ka-band. The invention includes: a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, and a fifth dielectric substrate; a parasitic radiating patch disposed on the top surface of the first dielectric substrate; a main radiating patch disposed between the first and second dielectric substrates; a radiating ground plane disposed between the second and third dielectric substrates; a power divider network disposed between the third and fourth dielectric substrates; a power divider network ground plane disposed on the bottom surface of the fifth dielectric substrate; and a first metal pillar, the upper end of which is electrically connected to the power divider network, and the lower end which is on the same horizontal plane as the power divider network ground plane but not electrically connected; the main radiating patch and the power divider network are electrically connected through several power divider metal pillars. This invention addresses the technical problem of performance shortcomings of existing microstrip antennas in satellite communication.