Anti-interference array integrated antenna

Abstract

The utility model relates to the technical field of antennas, in particular to an anti-interference array integrated antenna, which comprises a metal base, a central antenna mounted on the metal base, a high-precision antenna used for navigation and positioning and a short message communication antenna used for short message communication. The high-precision antenna adopts a four-feed-point design, the anti-interference antennas are mounted on the metal base and arranged around the central antenna array, the anti-interference antennas comprise navigation and positioning anti-interference antennas, the frequency band of the navigation and positioning anti-interference antennas is at least the same as that of the high-precision antenna, and the frequency band of the navigation and positioning anti-interference antennas is at least the same as that of the high-precision antenna. The anti-interference array integrated antenna can realize high-precision positioning, can resist interference, and also has a short message communication function.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to an anti-interference array integrated antenna. Background Art

[0002] The BeiDou satellite navigation system provides high-precision, highly reliable positioning and navigation services around the clock. It comprises three components: the space segment, the ground segment, and the user segment. Antennas are a crucial component of the user segment receiver, primarily responsible for receiving signals from satellites. After receiving radio wave signals transmitted by satellites, antennas convert them into electrical signals, which are further processed by electronic equipment to ultimately determine the user's geographic location.

[0003] During the operation of the navigation system, intentional or unintentional interference will affect the working status of the entire Beidou navigation system, causing the receiver to be unable to navigate and locate normally; in addition, the high-precision unit phase center of the existing anti-interference array antenna has large fluctuations and the central high-precision unit gain is low, resulting in a technical problem of poor positioning accuracy.

[0004] The short message system of the Beidou satellite navigation system plays an important role in providing functions such as emergency rescue and two-way communication. Users only need to enter the text message content on the user segment device to realize global text message sending and receiving through the Beidou satellite. However, the antenna in the existing technology has a technical problem of lacking short message communication function. Utility Model Content

[0005] The utility model provides an anti-interference array integrated antenna, which is used to solve the technical problems that antenna positioning is susceptible to interference, positioning is inaccurate and short message communication function is lacking.

[0006] The utility model provides an anti-interference array integrated antenna.

[0007] An anti-interference array integrated antenna, comprising:

[0008] Metal base;

[0009] The central antenna is mounted on the metal base and includes a high-precision antenna for navigation and positioning, and a short message communication antenna for short message communication. The high-precision antenna adopts a four-feed point design;

[0010] An anti-interference antenna is mounted on the metal base and arranged around the central antenna array. The anti-interference antenna includes a navigation and positioning anti-interference antenna. The frequency band of the navigation and positioning anti-interference antenna is at least the same as the frequency band of the high-precision antenna.

[0011] In a technical solution, the anti-interference antenna further includes an S anti-interference antenna.

[0012] In one technical solution, the central antenna is a stacked structure, and the anti-interference antenna includes four navigation and positioning anti-interference antennas and four S anti-interference antennas. The four navigation and positioning anti-interference antennas are evenly spaced around the central antenna, and the center normal of the navigation and positioning anti-interference antenna is half a wavelength away from the center normal of the central antenna. The four S anti-interference antennas are evenly spaced around the central antenna, and the center normal of the S anti-interference antenna is half a wavelength away from the center normal of the central antenna.

[0013] In one technical solution, the S anti-interference antenna has dual feed points, and the two diagonals of the metal plating on the radiating surface are cut along a direction parallel to the two feed points.

[0014] In one technical solution, the high-precision antenna and the short message communication antenna are stacked.

[0015] In one technical solution, the short message communication antenna includes a global short message antenna and a transmitting antenna, and the transmitting antenna is located at the top layer and has a single feed angle structure.

[0016] In one technical solution, the high-precision antenna and the global short message antenna have feed pin avoidance holes for avoiding the feed pin of the transmitting antenna, and also have other matching holes that match the feed pin avoidance holes. The sum of the number of the matching holes and the feed pin avoidance holes is a multiple of four. The feed pin avoidance holes and the matching holes are symmetrically distributed on the high-precision antenna and the global short message antenna, so that the high-precision antenna and the global short message antenna are both symmetrical structures.

[0017] In one technical solution, the high-precision antenna includes a B3 high-precision antenna and a B1 high-precision antenna, both of which are designed with four feed points. The navigation and positioning anti-interference antenna is a B3 anti-interference antenna. The short message communication antenna includes a global short message antenna and a transmitting antenna. The global short message antenna, B3 high-precision antenna, B1 high-precision antenna, and transmitting antenna are stacked in sequence from bottom to top.

[0018] In one technical solution, the high-precision antenna and the short message communication antenna have a central fixing hole located in the center position, and the central fixing hole is a metallized through-hole. Each central fixing hole is conductively connected to the metal plating of the radiating surface of the antenna in which it is located. Each central fixing hole is coaxial, and a metal screw is passed through the central fixing hole to connect with the metal base. The high-precision antenna and the short message communication antenna are conductively connected to the metal base through the metal screw.

[0019] In one technical solution, the navigation positioning anti-interference antenna includes a base plate and an antenna. The four corners of the antenna are provided with metallized vias, and the distance between each metallized via and the metal plating of the radiating surface of the antenna is between 0.5-1 mm.

[0020] Beneficial effects of the utility model:

[0021] The anti-interference array integrated antenna in the utility model adopts a four-feed point design for the high-precision antenna, which has a stable phase center, good non-circularity and a wider axial ratio bandwidth, and has higher positioning accuracy. At the same time, the anti-interference antenna has a navigation and positioning anti-interference antenna, and the navigation and positioning anti-interference antenna has the same frequency band as the high-precision antenna. It can cooperate with the high-precision antenna and the navigation and positioning anti-interference antenna to achieve reliable navigation and positioning in an interference environment. At the same time, the integrated short message communication antenna enables the anti-interference array integrated antenna to perform short message communication, thereby realizing the multi-functional integration of the anti-interference array integrated antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the antenna array in one embodiment of the anti-interference array integrated antenna of the present utility model;

[0023] Figure 2 This is a front view showing the metal base and antennas in one embodiment of the anti-interference array integrated antenna of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the cooperation between the central antenna and the central antenna base plate in one embodiment of the anti-interference array integrated antenna of the present invention;

[0025] Figure 4 This is a top view of an embodiment of the anti-interference array integrated antenna of the present invention, with the central antenna minus the transmitting antenna;

[0026] Figure 5 A front view of the B3 anti-interference antenna and the B3 anti-interference antenna base plate in one embodiment of the anti-interference array integrated antenna of the present invention;

[0027] Figure 6 A front view of the S anti-interference antenna and the S anti-interference antenna base plate in cooperation with each other in one embodiment of the anti-interference array integrated antenna of the present invention.

[0028] List of feature names corresponding to the reference numerals in the figures:

[0029] 100, metal base;

[0030] 200, center antenna; 201, B3 high-precision antenna; 202, B1 high-precision antenna; 2021, feed hole; 2022, metallized via; 203, global short message antenna; 204, transmitting antenna;

[0031] 300, B3 anti-interference antenna; 3001, B3 anti-interference antenna metallized via; 301, B3 anti-interference antenna bottom plate;

[0032] 400, S anti-interference antenna; 401, S anti-interference antenna base plate;

[0033] 500, center antenna base plate;

[0034] 600, first feed needle; 601, second feed needle; 602, third feed needle;

[0035] 700, first coaxial connector; 701, second coaxial connector; 702, third coaxial connector;

[0036] 800, first metal screw; 801, second metal screw; 802, third metal screw. DETAILED DESCRIPTION

[0037] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0040] In the utility model, the central antenna of the anti-interference array integrated antenna includes a high-precision antenna and a short message communication antenna. The high-precision antenna is used to realize the navigation and positioning function of the central antenna, and the short message communication antenna is used to realize the short message communication function of the central antenna. Since the high-precision antenna adopts a four-feed point design, the positioning accuracy of the high-precision antenna can be significantly improved. At the same time, since the positioning and navigation of the anti-interference antenna and the high-precision antenna have at least one same frequency band, the anti-interference array integrated antenna has anti-interference capability and can perform reliable positioning and navigation in an interference environment.

[0041] An embodiment of the anti-interference array integrated antenna in the utility model:

[0042] Please refer to Figure 1 In one embodiment, the anti-interference array integrated antenna in the present invention includes a metal base 100, and a central antenna 200 and an anti-interference antenna installed on the metal base 100, wherein the anti-interference antenna includes a B3 anti-interference antenna 300 and an S anti-interference antenna 400.

[0043] Please refer to Figure 2 and Figure 3 The central antenna 200 includes a navigation and positioning antenna and a short message communication antenna, wherein the navigation and positioning antenna is a high-precision antenna, including a B3 high-precision antenna 201 and a B1 high-precision antenna 202. The B3 high-precision antenna 201 is an antenna working in the B3 frequency band, and the B1 high-precision antenna 202 is an antenna working in the B1 frequency band.

[0044] The short message communication antenna includes a global short message antenna 203 and a transmitting antenna 204. In one embodiment, the four antennas are stacked, and from bottom to top they are the global short message antenna 203, the B3 high-precision antenna 201, the B1 high-precision antenna 202, and the transmitting antenna 204. Please refer to Figure 2 and Figure 3 A central antenna base plate 500 is mounted on the upper end surface of the metal base 100 . The central antenna base plate 500 is a circuit board, and the central antenna 200 is mounted on the central antenna base plate 500 .

[0045] The B3 anti-interference antenna 300 serves as a navigation and positioning anti-interference antenna, and cooperates with the navigation and positioning antenna to improve the navigation and positioning accuracy of the anti-interference array integrated antenna in an interference environment.

[0046] Please refer to Figure 2 and Figure 3The bottom-level global short message antenna 203 utilizes a dual-feed design, welded to the central antenna base plate 500 via two first feed pins 600. The bottom surface of the central antenna base plate 500 is connected via a 90° bridge circuit, and then plugged into the low-noise amplifier module within the metal base 100 via a first coaxial connector 700. Specifically, the metal base 100 has a chamber whose top wall accommodates the anti-interference antenna and central antenna 200. The low-noise amplifier module is located within the chamber (not shown). The dielectric constant of the global short message antenna 203 is 5-6, and the dielectric thickness is 4 mm. The global short message antenna 203 has two feed holes and thirteen metallized vias. The two feed holes connect to two feed pins 600. One of the thirteen metallized vias is located at the center of the global short message antenna 203 and serves as the central metallized via, which serves as the central fixing hole for the first metal screw 800 to pass through. The remaining twelve metallized vias are arranged in three layers, four per layer, with the central metallized via as the center. The four metallized vias in each layer are arranged at 90° intervals around the central metallized via. The outermost layer is a feed pin avoidance hole for avoiding the feed pin of the B3 high-precision antenna 201. The middle layer is a feed pin avoidance hole for avoiding the feed pin of the B1 high-precision antenna 202. One of the outermost layers is a feed pin avoidance hole for avoiding the feed pin of the transmitting antenna 204.

[0047] In one embodiment, the B3 high-precision antenna 201 is installed in a stacked manner on the basis of the global short message antenna 203. The B3 high-precision antenna 201 is a four-feed point design, that is, it is connected to the central antenna base plate 500 through four feed pins 600. The four feed pins pass through the four metallized through-holes of the global short message antenna 203 and are welded and fixed to the central antenna base plate 500. The central antenna base plate 500 provides a stable phase difference through three 90° bridges and a phase-shifting network and then outputs the combined circuit. The corresponding coaxial connector is plugged into the low-noise amplifier module in the metal base 100. The dielectric constant of the B3 high-precision antenna 201 is 5-6, and the dielectric thickness is 6 mm.

[0048] Due to its four-feed-point design, the B3 high-precision antenna 201 has four feed holes. In addition, the B3 high-precision antenna 201 has nine metallized vias. One of the metallized vias is located at the center of the B3 high-precision antenna 201 and serves as the central fixing hole for the first metal screw 800 to pass through. The other four metallized vias are arranged in two layers, four per layer, centered around the central metallized via. The four metallized vias in each layer are spaced 90° apart around the central metallized via. The outer layer serves as a feed pin avoidance hole for avoiding the feed pin of the B1 high-precision antenna, and one of the inner layers serves as a feed pin avoidance hole for avoiding the feed pin of the transmitting antenna 204. The B3 high-precision antenna 201 utilizes a four-feed-point design, resulting in a stable phase center, good out-of-roundness, and a wider axial ratio bandwidth. It also utilizes a thicker antenna dielectric to achieve a wider impedance bandwidth within a limited space.

[0049] In one embodiment, the B1 high-precision antenna 202 is stacked upward on the basis of the B3 high-precision antenna 201. Figure 4 The B1 high-precision antenna 202 also features a four-feed design. Four feed pins pass through four metallized vias on the B3 high-precision antenna 201 and four metallized vias on the global short message antenna 203 before being soldered to the central antenna baseplate 500. The central antenna baseplate 500 combines the outputs using three 90° bridges and a phase-shifting network to provide a stable phase difference. These outputs are then connected to the low-noise amplifier module within the metal base 100 via corresponding coaxial connectors. The dielectric constant of the B1 high-precision antenna 202 is 5-6, and the dielectric thickness is 4mm.

[0050] Due to its four-feed-point design, the B1 high-precision antenna 202 has four feed holes 2021 for mounting four feed pins. Additionally, the B1 high-precision antenna 202 has five metallized vias 2022. One of these vias is located at the center of the B1 high-precision antenna 202 and serves as the central fixing hole for the first metal screw 800 to pass through. The other four metallized vias 2022 are arranged 90° apart with the central via as the center. One of these vias is a feed pin avoidance hole for avoiding the feed pin of the transmitting antenna 204. The B1 high-precision antenna 202 utilizes a four-feed-point design with a stable phase center, good out-of-roundness, and a wider axial ratio bandwidth, enabling it to provide high-precision navigation and positioning capabilities.

[0051] In one embodiment, the top layer comprises the transmitting antenna 204. The feed pin of transmitting antenna 204 passes through corresponding metallized vias in the B1 high-precision antenna 202, the B3 high-precision antenna 201, and the global short message antenna 203, and is then welded to the central antenna base plate 500. A central metallized via is located at the geometric center, serving as the central fixing hole for the first metal screw 800. Transmitting antenna 204 utilizes a single feed point cutaway design, with the feed point located 4-5 mm from the center of transmitting antenna 204 in the normal direction.

[0052] During assembly, align the center metallized vias of the global short message antenna 203, B3 high-precision antenna 201, B1 high-precision antenna 202, and transmitting antenna 204. Figure 3 The central metallized through hole is a central fixing hole. By inserting a metal screw 800 into the central fixing hole and screwing it to the metal base 100, the antenna radiation surface of each antenna is short-circuited and grounded to the metal base 100.

[0053] As recorded above, although the transmitting antenna 204 is a single feed pin, on the B1 high-precision antenna 202, in addition to the central metallized via 2022, there are four metallized vias 2022, and the feed pin of the transmitting antenna 204 only passes through one of the four metallized vias 2022. The purpose of this design is to improve the single feeding point feeding of the transmitting antenna 204. The single metallized via will cause unbalanced feeding of the B1 high-precision antenna 202. Therefore, in the B1 high-precision antenna 202, in addition to the central metallized via 2022, four other metallized vias 2022 are designed, one as a feed pin avoidance hole, and three as matching holes. The distance between the matching hole and the center normal of the metal base 100 is consistent with the distance between the feeding point of the transmitting antenna 204 and the center normal of the metal base 100, so as to ensure the structural symmetry of the B1 high-precision antenna 202, ensure the symmetry of the non-circularity and the radiation pattern of the B1 high-precision antenna 202, and at the same time ensure that the transmitting antenna 204 is more convenient during the debugging process. The design of four metallized vias is only one embodiment, and is not limited to other designs that are multiples of four, such as eight, twelve, etc. The same is true for the B3 high-precision antenna 201 and the global short message antenna 203.

[0054] The central antenna is installed on the central antenna base plate 500 after 11 feed pins are welded. The signals are combined after passing through the phase shift network on the bottom surface of the central antenna base plate 500 and are output through multiple coaxial connectors as B1, B2, B3 and L antenna signals respectively.

[0055] As described above, the central antenna includes a global short message antenna 203, a B3 high-precision antenna 201, a B1 high-precision antenna 202, and a transmitting antenna 204. Each antenna is fixed to the central antenna base plate 500 and the metal base 100 by a first metal screw 800, which plays a role in lightning protection. The central antenna can provide all-day high-precision navigation and positioning services and short message functions. Compared with the single-feed point and dual-feed point designs, the high-precision four-feed point design of the central antenna has a more stable phase center and direction. Figure 1 Good consistency and better out-of-roundness.

[0056] In one embodiment, the navigation and positioning anti-interference antenna is composed of an array of four identical B3 anti-interference antennas 300, which are arranged clockwise at 90° intervals around the central antenna. The normal distance between the geometric center position and the normal distance between the geometric center position of the central antenna is about half a wavelength, ensuring good isolation and small coupling effect. The B3 anti-interference antenna 300 is a dual-feed point design. Please refer to 1 and Figure 5 A B3 anti-interference antenna base plate 301 is provided corresponding to each B3 anti-interference antenna 300. The two second feed pins 601 of each B3 anti-interference antenna 300 pass through the corresponding B3 anti-interference antenna base plate 301 and are welded on the bottom surface. After a 90° bridge circuit, they are connected to the low-noise amplifier module in the metal base 100 by the corresponding second coaxial connector 701.

[0057] The B3 anti-interference antenna base plate 301 is slightly larger than the B3 anti-interference antenna 300 and uses an FR4 PCB substrate. Specifically, four B3 anti-interference antenna metallized vias 3001 are provided at the four diagonals of the B3 anti-interference antenna 300. By designing the distance between the B3 anti-interference antenna metallized vias 3001 and the metal plating of the radiation surface of the B3 anti-interference antenna 300, the distance is approximately 0.5-1mm, and the center frequency offset of the B3 anti-interference antenna 300 can be adjusted. In order to further improve the structural reliability, it can be fixed with metal screws. A metallized via is provided in the center of the B3 anti-interference antenna 300. By inserting a second metal screw 801 into the metallized via and connecting it to the metal base 100, the antenna radiation surface of the B3 anti-interference antenna 300 and the metal base 100 can be short-circuited and grounded, thereby providing lightning protection for the B3 anti-interference antenna 300.

[0058] The four diagonal metallized vias 3001 on the B3 anti-interference antenna are equivalent to adding four symmetrical ground parasitic patches. The coupling effect between these ground parasitic patches and the radiating surface patch of the B3 anti-interference antenna 300 reduces the required radiating surface area for the same dielectric constant and frequency, enabling miniaturization. The B3 anti-interference antenna 300 uses pellet injection molding as the dielectric material, with a dielectric constant of 8-9 and a thickness of 6mm, resulting in a wider antenna impedance bandwidth and gain bandwidth.

[0059] In one embodiment, the anti-interference antenna includes an array consisting of four identical S anti-interference antennas 400, which are arranged in a 90° clockwise rotation around the central antenna. The normal of the geometric center of each S anti-interference antenna 400 is approximately half a wavelength away from the normal of the geometric center of the central antenna. The vertical tangential angle between the S anti-interference antenna 400 and the B3 anti-interference antenna 300 is 45°, that is, the S anti-interference antenna 400 and the B3 anti-interference antenna 300 are alternately arranged at 45° intervals around the central antenna.

[0060] Please refer to Figure 6 The S anti-interference antenna 400 is a dual-feed pin design. An S anti-interference antenna base plate 401 is provided corresponding to each S anti-interference antenna 400. The two third feed pins 602 of each S anti-interference antenna 400 pass through the S anti-interference antenna base plate 401 and are welded on the bottom surface. After a 90° bridge circuit, they are connected to the low-noise amplifier module in the metal base 100 by the corresponding third coaxial connector 702.

[0061] The S anti-interference antenna baseplate 401 is slightly larger than the S anti-interference antenna 400 and utilizes an FR4 PCB substrate. The S anti-interference antenna 400 has a central metalized via. A third metal screw 802 is inserted through this metalized via to connect it to the metal base 100. This short-circuit grounds the antenna radiating surface of the S anti-interference antenna 400 and the metal base 100, providing lightning protection for the S anti-interference antenna 400. The dielectric material of the S anti-interference antenna 400 is injection-molded with pellets, has a dielectric constant of 8-9, and a thickness of 4 mm.

[0062] Since the global short message antenna 203 close to the center antenna deteriorates the circular polarization axial ratio of the S anti-interference antenna 400, the two feed needles of the S anti-interference antenna 400 are cut in the tangential direction to improve the circular polarization axial ratio of the S anti-interference antenna 400 and further enhance the performance of the antenna. Specifically, the S anti-interference antenna 400 is a square structure, and the metal coating on it is also square, slightly smaller than the medium, with a dual feed point design. The feed point is located at a certain distance from the center, such as 4mm, and the two feed points are orthogonal, similar to a feed point at the 0 o'clock position and a feed point at the 3 o'clock position on a clock. The tangent direction of the two feed needles is parallel to the direction of the two feed points. In this direction, the two diagonal corners of the square metal coating are cut to improve the problem of the circular polarization axial ratio being deteriorated after being affected by the center.

[0063] The B3 high-precision antenna 203 can be used as an anti-interference unit. When used together with the B3 anti-interference antenna 300, it can suppress up to four strong interference wave directions, ensuring that the antenna can still maintain the normal operation of the system in an interference environment and realize high-precision navigation and positioning functions. In some other embodiments, the navigation and positioning anti-interference antenna can also be a B1 anti-interference antenna. If the high-precision antenna of the central antenna includes a B2 high-precision antenna, then correspondingly, the navigation and positioning anti-interference antenna can also be a B2 anti-interference antenna, that is, the frequency band of the navigation and positioning anti-interference antenna is at least the same as that of the high-precision antenna.

[0064] The integration of the central antenna short message transceiver antenna 204 also enables two-way short message communication, which can meet the needs of communication between users and between users and ground stations. Compared with traditional mobile communication methods, the Beidou short message system has advantages such as higher reliability, wider coverage, and lower cost, especially in remote areas or disaster situations, and can better ensure the security and stability of communication. In addition, the configuration of four S anti-interference antennas 400 uses one of the S anti-interference antennas 400 as a regional short message antenna unit. When interference occurs, the signals of the four S anti-interference antennas are output through direct switching control, which can suppress interference waves from three different directions, ensuring that the short message communication system can still achieve normal two-way communication in an interference environment.

[0065] In the present invention, the integrated antenna array with anti-interference array, high-precision positioning, and short message communication two-way service further accelerates the integration trend of antenna systems.

[0066] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. An anti-interference array integrated antenna, characterized in that: include: Metal base; The central antenna is mounted on the metal base and includes a high-precision antenna for navigation and positioning, and a short message communication antenna for short message communication. The high-precision antenna adopts a four-feed point design; An anti-interference antenna is mounted on the metal base and arranged around the central antenna array. The anti-interference antenna includes a navigation and positioning anti-interference antenna. The frequency band of the navigation and positioning anti-interference antenna is at least the same as the frequency band of the high-precision antenna.

2. The anti-interference array integrated antenna according to claim 1, wherein: The anti-interference antenna also includes an S anti-interference antenna.

3. The anti-interference array integrated antenna according to claim 2, wherein: The central antenna is a stacked structure, and the anti-interference antenna includes four navigation and positioning anti-interference antennas and four S anti-interference antennas. The four navigation and positioning anti-interference antennas are evenly spaced around the central antenna, and the center normal of the navigation and positioning anti-interference antenna is half a wavelength away from the center normal of the central antenna. The four S anti-interference antennas are evenly spaced around the central antenna, and the center normal of the S anti-interference antenna is half a wavelength away from the center normal of the central antenna.

4. The anti-interference array integrated antenna according to claim 3, wherein: The S anti-interference antenna has dual feed points, and the two diagonals of the metal plating on the radiation surface are cut along a direction parallel to the two feed points.

5. The anti-interference array integrated antenna according to any one of claims 1 to 4, characterized in that: The high-precision antenna and the short message communication antenna are stacked.

6. The anti-interference array integrated antenna according to claim 5, characterized in that: The short message communication antenna includes a global short message antenna and a transmitting antenna. The transmitting antenna is located on the uppermost layer and has a single feed angle structure.

7. The anti-interference array integrated antenna according to claim 6, wherein: The high-precision antenna and the global short message antenna have feed pin avoidance holes for avoiding the feed pin of the transmitting antenna, and also have other matching holes that match the feed pin avoidance holes. The sum of the number of the matching holes and the feed pin avoidance holes is a multiple of four. The feed pin avoidance holes and the matching holes are symmetrically distributed on the high-precision antenna and the global short message antenna, so that the high-precision antenna and the global short message antenna are both symmetrical structures.

8. The anti-interference array integrated antenna according to claim 5, wherein: The high-precision antenna includes a B3 high-precision antenna and a B1 high-precision antenna. Both the B3 high-precision antenna and the B1 high-precision antenna are designed with four feed points. The navigation and positioning anti-interference antenna is a B3 anti-interference antenna. The short message communication antenna includes a global short message antenna and a transmitting antenna. The global short message antenna, B3 high-precision antenna, B1 high-precision antenna, and transmitting antenna are stacked in sequence from bottom to top.

9. The anti-interference array integrated antenna according to claim 5, wherein: The high-precision antenna and the short message communication antenna have a central fixing hole located in the center position. The central fixing hole is a metallized through-hole. Each central fixing hole is conductively connected to the metal plating of the radiating surface of the antenna in which it is located. Each central fixing hole is coaxial. Metal screws are passed through the central fixing holes to connect with the metal base. The high-precision antenna and the short message communication antenna are conductively connected to the metal base through the metal screws.

10. The anti-interference array integrated antenna according to any one of claims 1 to 4, characterized in that: The navigation positioning anti-interference antenna includes a base plate and an antenna. The four corners of the antenna are provided with metallized vias, and the distance between each metallized via and the metal plating of the radiation surface of the antenna is between 0.5-1 mm.

Images