Terminal antenna simultaneously supporting Tiantong satellite and low earth orbit satellite

Abstract

The utility model designs a terminal antenna capable of simultaneously supporting a Tiantong satellite and a low-orbit satellite. The terminal antenna comprises a feed network board, a connector and an antenna board, the antenna board is connected to the feed network board; the connector is connected to the bottom of the feed network board; the antenna plate comprises a main radiation arm, a parasitic arm and a parasitic branch arm; the main radiation arm is arranged on the left side of the parasitic arm and is used for connecting feed and exciting low-orbit resonance; the parasitic branch arm is arranged on the right side of the middle upper part of the parasitic arm and connected with the parasitic arm; the parasitic frequency of the parasitic arm and the parasitic branch arm is the Tiantong frequency; first guide arms are arranged at the top of the parasitic arm at intervals; second guide arms are arranged at the top of the parasitic branch arm at intervals, and the first / second guide arms are used for increasing the directivity coefficient of the parasitic arm, namely, Tiantong resonance, so that the axial gain is improved; through the design, the antenna preparation cost can be reduced, the preparation process is simplified, and meanwhile, the effect that the terminal antenna can support a Tiantong satellite and a low-orbit satellite is still achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of antenna preparation, specifically relates to a terminal antenna of supporting simultaneously Tian Tong satellite and low orbit satellite. BACKGROUND

[0002] As the next generation communication standard, realizing space-air-ground-sea integration is one of the main directions of 6G. And to realize global interconnection of people, people and things, and things, satellite communication, especially low-orbit satellite communication, plays a core role. SatNet is a large satellite internet constellation being built in China, and Tian Tong satellite is the first generation of self-controllable satellite mobile communication system in China, which can provide all-weather, all-day, stable and reliable mobile communication services for Chinese users, support voice, short message and data services, and effectively solve the problem of difficult coverage of ground communication network in remote areas such as ocean, desert, forest and mountain area in China, and has realized the overall coverage of ocean and islands within China's territory and territorial sea.

[0003] Therefore, the patent CN222191139U designed by the applicant before discloses a double-receiving and double-transmitting antenna, which comprises a composite material shell, a mounting groove is formed in the surface of the composite material shell, a metal wire is fixedly connected to the surface of the composite material shell, a feed network device is fixedly connected to the bottom surface of the composite material shell, a radio frequency connector is fixedly connected to the inner wall of the feed network device, and the upper surface of the radio frequency connector is fixedly connected to the bottom surface of the feed network device. The double-receiving and double-transmitting antenna realizes the metal wire of the antenna on the surface of the composite material shell by the metal wire, thereby constructing the basis of four-arm spiral, each arm adopts 2 times of Y-shaped fractal technology to enrich the current path and realize double-receiving and double-transmitting four-frequency resonance, and the antenna can realize double-satellite double-receiving and double-transmitting four-frequency instead of the original two antennas, thereby reducing the interface design, weight and cost of the terminal and the like.

[0004] However, the above design adopts the LDS process for preparation, and since the preparation process is relatively complex and the cost is relatively high, how to improve the above design to reduce the cost and ensure that the performance is more superior and the preparation method is simpler is particularly important. UTILITY MODEL CONTENT

[0005] In order to solve the above technical problems, the application designs a terminal antenna supporting simultaneously Tian Tong satellite and low-orbit satellite, so as to realize the reduction of preparation cost by redesigning the metal microstrip on the antenna board, and realize the effect of supporting Tian Tong satellite and low-orbit satellite while simplifying the preparation process.

[0006] A terminal antenna supporting simultaneously Tian Tong satellite and low-orbit satellite, comprising a feed network board, a connector and an antenna board.

[0007] The antenna board is connected to the feed network board.

[0008] The connector is connected to the bottom of the feed network board.

[0009] Preferably, the antenna board comprises a soft substrate and a metal microstrip.

[0010] The metal microstrip is arranged on the soft substrate.

[0011] Preferably, the metal microstrip is 4 groups, and the metal microstrip is arranged on the soft substrate in the form of a four-arm spiral.

[0012] Preferably, the metal microstrip comprises a main radiation arm, a parasitic arm, and a parasitic branch arm.

[0013] The main radiation arm is arranged on the left side of the parasitic arm, and the parasitic branch arm is arranged on the right side of the upper part of the parasitic arm and connected to the parasitic arm.

[0014] The parasitic branch arm is in the form of an L structure.

[0015] A first directing arm is arranged on the top of the parasitic arm.

[0016] A second directing arm is arranged on the top of the parasitic branch arm.

[0017] Preferably, the bottom of the main radiation arm and the parasitic arm is connected to the feed network board.

[0018] Preferably, the power of the 4 groups of metal microstrips is equal, and the phase difference is 90 degrees.

[0019] Preferably, the antenna board is in the form of a closed hollow cylindrical structure, and the metal microstrip on the antenna board is connected to the feed network board.

[0020] Preferably, the soft substrate is a polyimide substrate.

[0021] The advantages and effects of the present application are as follows:

[0022] The terminal antenna designed by the application simultaneously supports Tian Tong satellite and low-orbit satellite, comprising a feed network board, a connector and an antenna board; the antenna board is connected to the feed network board; the connector is connected to the bottom of the feed network board; the redesigned antenna board comprises a main radiation arm, a parasitic arm and a parasitic branch arm; the main radiation arm is arranged on the left side of the parasitic arm, the parasitic branch arm is arranged on the right side of the upper middle part of the parasitic arm and connected to the parasitic arm; the parasitic branch arm is in an L-shaped structure; a first director arm is arranged at intervals on the top of the parasitic arm; a second director arm is arranged at intervals on the top of the parasitic branch arm. The main radiation arm is mainly used for connecting feeding and exciting low-orbit resonance; the parasitic frequency of the parasitic arm and the parasitic branch arm is the Tian Tong frequency, and the first / second director arm is used for increasing the directivity coefficient of the parasitic arm, that is, the Tian Tong resonance, so as to improve the axial gain. Through the above design, the application can reduce the preparation cost, simplify the preparation process, and still realize the effect of supporting Tian Tong satellite and low-orbit satellite.

[0023] The above description is only a summary of the technical scheme of the application, in order to more clearly understand the technical means of the application, so as to be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following will be described in detail with the preferred embodiment of the application and with the help of the drawings as follows.

[0024] According to the detailed description of the specific embodiments of the application in the following text combined with the drawings, those skilled in the art will more clearly understand the above and other purposes, advantages and characteristics of the application. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0026] Figure 1 The structural schematic diagram of the terminal antenna designed by the application simultaneously supports Tian Tong satellite and low-orbit satellite;

[0027] Figure 2 The antenna board flat drawing designed by the application;

[0028] Figure 3 The metal microstrip three-dimensional view designed by the application;

[0029] Figure 4A structure diagram of a feeding network board and a metal microstrip connection designed for the present application;

[0030] Reference signs:

[0031] 1. A feeding network board; 2. An antenna board; 3. A flexible substrate; 4. A metal microstrip; 5. A main radiating arm; 6. A parasitic arm; 7. A parasitic branch arm; 8. A first director arm; 9. A second director arm. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of known functions and structures are omitted in the embodiments for clarity and conciseness.

[0033] It should be understood that the "one embodiment" or "the embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "one embodiment" or "the embodiment" appearing throughout the specification does not necessarily mean the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0034] In addition, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0035] The term "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, B exists alone, and A and B exist together. The term "and" herein is a description of another association relationship of the associated objects, which means that there can be two relationships, for example, A and B can mean that A exists alone and A and B exist together. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0036] The term "at least one" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, at least one of A and B can mean that A exists alone, A and B exist together, and B exists alone.

[0037] It is also need to point out that, in this article, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion.

[0038] Embodiment 1

[0039] This embodiment mainly introduces a terminal antenna supporting both Tianxiang satellite and low-orbit satellite, including a feed network board 1, a connector and an antenna board 2; please refer to the specific design Figure 1 ; Figure 1 The structural diagram of a terminal antenna supporting both Tianxiang satellite and low-orbit satellite designed for this application (the connector is more common and is not drawn), the antenna board 2 is connected to the feed network board 1; the connector is connected to the bottom of the feed network board 1.

[0040] The feed network board 1 contains a broadband one-to-four bridge and a PCB board, the design of the feed network is more common, and this application does not make detailed description.

[0041] Further, the antenna board 2 includes a flexible substrate 3 and a metal microstrip 4;

[0042] The metal microstrip 4 is arranged on the flexible substrate 3, and the flexible substrate 3 can be folded, so this embodiment is closed and curled to form a hollow cylindrical structure, and the metal microstrip 4 also presents a spiral rising structure.

[0043] Further, please refer to Figure 4 , Figure 4 The structural diagram of the connection between the feed network board and the metal microstrip designed for this application; the metal microstrip 4 is 4 groups, and the metal microstrip 4 is arranged in a four-arm spiral rising manner on the flexible substrate 3.

[0044] Further, please refer to Figure 2 and Figure 3 , Figure 2 The antenna board flat drawing designed for this application; Figure 3 The metal microstrip perspective view designed for this application; the metal microstrip 4 includes a main radiation arm 5, a parasitic arm 6 and a parasitic branch arm 7;

[0045] The main radiation arm 5 is arranged on the left side of the parasitic arm 6, and the parasitic branch arm 7 is arranged on the right side of the upper middle part of the parasitic arm 6 and connected with the parasitic arm 6;

[0046] The parasitic branch arm 7 is an L-shaped structure;

[0047] The top of the parasitic arm 6 is provided with a first director arm 8 at intervals;

[0048] The top of the parasitic branch arm 7 is provided with a second directing arm 9 at intervals.

[0049] The main radiation arm is mainly used for connecting the feed, exciting the low-orbit resonance; the parasitic frequency of the parasitic arm and the parasitic branch arm is the frequency of the sky wave, and the first / second directing arm is used for increasing the directivity coefficient of the parasitic arm, that is, the sky wave resonance, so as to improve the axial gain.

[0050] Further, the bottom of the main radiation arm 5 and the parasitic arm 6 is connected with the feed network plate 1 respectively.

[0051] Further, the power of the four groups of metal microstrips 4 is equal, and the phase is sequentially different by 90 degrees.

[0052] The four groups of metal microstrips 4 are connected with the feed network plate respectively, and the feed network plate is provided with four groups of connection ports for corresponding connection of the four groups of metal microstrips.

[0053] Further, the antenna plate 2 is a closed hollow cylindrical structure, and the metal microstrip 4 on the antenna plate 2 is connected with the feed network plate 1.

[0054] Further, the soft substrate 3 is a polyimide substrate.

[0055] The application designs a terminal antenna supporting the sky wave satellite and the low-orbit satellite simultaneously, which comprises a feed network plate, a connector and an antenna plate; the antenna plate is connected on the feed network plate; the connector is connected at the bottom of the feed network plate; the redesigned antenna plate comprises a main radiation arm, a parasitic arm and a parasitic branch arm; the main radiation arm is arranged at the left side of the parasitic arm, the parasitic branch arm is arranged at the right side of the middle upper part of the parasitic arm and connected with the parasitic arm; the parasitic branch arm is of an L-shaped structure; the top of the parasitic arm is provided with a first directing arm at intervals; and the top of the parasitic branch arm is provided with a second directing arm at intervals. The main radiation arm is mainly used for connecting the feed, exciting the low-orbit resonance; the parasitic frequency of the parasitic arm and the parasitic branch arm is the frequency of the sky wave, and the first / second directing arm is used for increasing the directivity coefficient of the parasitic arm, that is, the sky wave resonance, so as to improve the axial gain. Through the above design, the application can reduce the preparation cost, simplify the preparation process, and still realize the effect of supporting the sky wave satellite and the low-orbit satellite.

[0056] The above merely describes preferred embodiments of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application can be variously changed and modified. Any change, modification, replacement, integration and parameter change of the embodiments within the spirit and principle of the present application, which can realize the same function without departing from the principle and spirit of the present application, falls within the protection scope of the present application.

Claims

1. A terminal antenna supporting both GEO satellites and LEO satellites simultaneously, characterized in that, The antenna device comprises a feeding network board (1), a connector and an antenna board (2); The antenna board (2) is connected to the feeding network board (1); The connector is connected to the bottom of the feeding network board (1).

2. The terminal antenna supporting both FAS and LEO satellites according to claim 1, wherein, The antenna board (2) comprises a flexible substrate (3) and metal microstrips (4); The metal microstrips (4) are arranged on the flexible substrate (3).

3. The terminal antenna supporting both FAS and LEO satellites according to claim 2, wherein, The metal microstrips (4) are arranged in a four-arm spiral ascending manner on the flexible substrate (3).

4. The terminal antenna supporting both FAS and LEO satellites according to claim 2, wherein, The metal microstrips (4) comprise a main radiation arm (5), a parasitic arm (6) and a parasitic branch arm (7). The main radiation arm (5) is arranged on the left side of the parasitic arm (6), and the parasitic branch arm (7) is arranged on the right side of the upper middle part of the parasitic arm (6) and connected to the parasitic arm (6). The parasitic branch arm (7) is in an L-shaped structure. A first director arm (8) is arranged on the top of the parasitic arm (6) in an interval manner. A second director arm (9) is arranged on the top of the parasitic branch arm (7) in an interval manner.

5. The terminal antenna supporting both FAS and LEO satellites according to claim 4, wherein, The bottom of the main radiation arm (5) and the parasitic arm (6) is connected to the feeding network board (1).

6. The terminal antenna supporting both FAS and LEO satellites according to claim 3, wherein, The power of the four groups of metal microstrips (4) is equal, and the phase difference is 90 degrees.

7. The terminal antenna supporting both FAS and LEO satellites according to claim 5, wherein, The antenna board (2) is in a closed hollow cylindrical structure, and the metal microstrips (4) on the antenna board (2) are connected to the feeding network board (1).

8. The terminal antenna supporting both FAS and LEO satellites according to claim 2, wherein, The flexible substrate (3) is a polyimide substrate.

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