Beidou short message combined antenna

Abstract

The utility model discloses a Beidou short message combined antenna, which comprises a multi-core connector, an antenna shell and a Beidou short message antenna, the top of the multi-core connector is connected with a base, the bottom of the antenna shell is connected with the base, the top of the antenna shell is bridged with a coaxial SMA connector, and the bottom of the antenna shell is bridged with the coaxial SMA connector. The Beidou short message antenna is arranged in the antenna shell, the Beidou short message antenna adopts a four-arm spiral structure form, the Beidou short message antenna comprises a first PCBA (Printed Circuit Board Assembly) board, a first antenna, a second PCBA board and a second antenna, and the SMA connector is connected with a third antenna; according to the utility model, a short message antenna and antennas in various fields can be ingeniously combined together, the functions of multi-frequency circular polarization and multi-system communication positioning are realized, the installation space is saved, the number of antennas is reduced, the standing wave bandwidth of the antenna is expanded, the working efficiency is improved, and the performance and isolation requirements of the antenna are met.

Description

Technical Field

[0001] The utility model relates to the field of antennas, in particular to a Beidou short message plus combined antenna. Background Art

[0002] Antennas transform guided waves propagating on transmission lines into electromagnetic waves propagating in unbounded media, or perform the opposite transformation. Generally, antennas are reversible. They are used as components in radio equipment to transmit or receive electromagnetic waves. Engineering systems such as radio communications, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, all of which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy with electromagnetic waves, non-signal energy radiation also requires antennas. Antennas are divided into two categories: built-in and external. Common built-in antennas include: Monopole antennas, PIFA antennas, patch ceramic antennas, FPC antennas, etc.; common external antennas include: rod antennas, telescopic antennas, helical antennas, vehicle-mounted antennas, etc.; currently, circularly polarized short message antennas and linearly polarized communication antennas can only work in a single mode and cannot be used in dual or multi-mode at the same time. Utility Model Content

[0003] The purpose of the utility model is to provide a Beidou short message plus combined antenna to solve the problem that the circularly polarized short message antenna and the linearly polarized communication antenna proposed in the above background technology can only have a single working mode and cannot be used in dual mode or multi-mode at the same time.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A Beidou short message plus combined antenna, comprising:

[0006] A multi-core connector, wherein the top of the multi-core connector is connected to a base;

[0007] An antenna housing, wherein the bottom of the antenna housing is connected to the base, and the top of the antenna housing is bridged with a coaxial SMA connector;

[0008] A Beidou short message antenna, which is placed in an antenna housing and has a four-arm spiral structure;

[0009] Among them, a third antenna is connected to the SMA connector; the Beidou short message antenna includes a No. 1 PCBA board, a first antenna connected above the No. 1 PCBA board, a No. 2 PCBA board connected above the first antenna, and a second antenna connected above the No. 2 PCBA board. The No. 1 PCBA board and the No. 2 PCBA board are fixedly connected to the multi-core connector through a connecting rod.

[0010] Preferably, the positions of the first antenna and the second antenna can be interchanged up and down, the first antenna can be set as a receiving antenna or a transmitting antenna, and the second antenna can be set as a transmitting antenna or a receiving antenna.

[0011] Preferably, the first antenna and the second antenna both have their own phase-shifted four-feed circuit and LC filtering suppression circuit.

[0012] Preferably, a protrusion is provided at the bottom end of the SMA connector, and a recess for inserting the protrusion is provided at the top end of the connecting rod.

[0013] Preferably, the third antenna is a communication antenna or a positioning antenna, and the third antenna adopts a UHF antenna, and the UHF antenna adopts a spring quarter-wavelength structure.

[0014] The beneficial effects of the utility model are:

[0015] With the cooperation of SMA connector and multi-core connector, the utility model takes the short message receiving and sending antenna as the core, and can cleverly combine the short message antenna with antennas in various fields to realize the functions of multi-frequency circular polarization and multi-system communication positioning, save installation space, reduce the number of antennas, and expand more system application functions, so that the antenna has a broader application space, so that each system can expand the standing wave bandwidth of the antenna under limited space, greatly improve the working efficiency of the antenna, and meet the performance and isolation requirements of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the Beidou short message plus combined antenna of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model after removing the third antenna;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged local structure.

[0019] In the figure: 1 multi-core connector, 2 base, 3 antenna housing, 4 No. 1 PCBA board, 5 first antenna, 6 No. 2 PCBA board, 7 second antenna, 8 SMA connector, 81 protrusion, 9 third antenna, 10 connecting rod, 11 recess. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , which provides a technical solution for the utility model, a Beidou short message plus combined antenna, including a multi-core connector 1, an antenna housing 3 and a Beidou short message antenna; the top of the multi-core connector 1 is connected to a base 2; the bottom of the antenna housing 3 is connected to the base 2, and the top of the antenna housing 3 is bridged with a coaxial SMA connector 8; the Beidou short message antenna mentioned is placed in the antenna housing 3, and the Beidou short message antenna adopts a four-arm spiral structure, which respectively realizes left-hand circular polarization of the L transmission band and right-hand circular polarization of the S receiving band.

[0022] Among them, the mentioned SMA connector 8 is connected to a third antenna 9, which can be a communication antenna or a positioning antenna. The third antenna 9 adopts but is not limited to a UHF antenna, and the UHF antenna adopts a spring quarter-wavelength structure design; the Beidou short message antenna includes a No. 1 PCBA board 4, a first antenna 5 connected to the top of the No. 1 PCBA board 4, a No. 2 PCBA board 6 connected to the top of the first antenna 5, and a second antenna 7 connected to the top of the No. 2 PCBA board 6. The No. 1 PCBA board 4 and the No. 2 PCBA board 6 are fixedly connected to the multi-core connector 1 through a connecting rod 10. A protrusion 81 is provided at the bottom end of the SMA connector 8, and a recess 11 is provided at the top of the connecting rod 10 for inserting the protrusion 81; the cooperation of the protrusion 81 and the recess 11 can tightly combine the SMA connector 8, the connecting rod 10 and the multi-core connector 1 into one, so that the third antenna 9 and the Beidou short message antenna are closely combined together to realize the functions of multi-frequency circular polarization and multi-system communication positioning, saving installation space and reducing the number of antennas.

[0023] It should be noted that the connecting rod 10 mentioned above can use a cable to bridge the multi-core connector 1 and the SMA connector 8 together; the SMA connector 8 mentioned above can be connected to VHF / UHF shortwave antennas of various sizes, satellite positioning rod antennas, Tiantong antennas, etc.; it should be noted that the multi-core connector 1 mentioned above adopts a coaxial connecting wire process, so that each system can meet the performance and isolation requirements of the antenna in a limited space.

[0024] In this embodiment, the positions of the first antenna 5 and the second antenna 7 mentioned can be interchanged up and down, which can meet practical requirements; the first antenna 5 mentioned can be set as a receiving antenna or a transmitting antenna, and the second antenna 7 can be set as a transmitting antenna or a receiving antenna; the first antenna 5 and the second antenna 7 both have their own phase-shifted four-feed circuit and LC filtering suppression circuit; the No. 1 PCBA board 4 and the No. 2 PCBA board 6 mentioned are both Beidou receiving circuit boards or Beidou transmitting circuit boards.

[0025] Embodiment: A multi-core connector 1, a first antenna 5 and a No. 1 PCBA board 4 are connected together, the first antenna 5 is used as a Beidou receiving signal output, a second antenna 7, a third antenna 9 and a No. 2 PCBA board 6 are connected together, and the second antenna 7 is used as a Beidou transmitting signal output, and the third antenna 9 is connected to the SMA connector 8 through the No. 1 PCBA board 4 or the No. 2 PCBA board 6 to form an antenna system expansion connection unit; wherein, the receiving four-arm helical antenna adopts a half-wavelength short-circuit design of the working frequency, and the transmitting antenna adopts a quarter-wavelength open-circuit design; the third antenna 9 adopts but is not limited to a UHF antenna, the UHF antenna adopts a spring quarter-wavelength design, the circuit performs LC matching, expands the antenna standing wave bandwidth, and improves work efficiency; the Beidou short message plus combination antenna, with a Beidou short message transceiver antenna with a spiral structure as the core, integrates various shortwave communication antennas and various satellite positioning antennas to form an integrated integrated antenna design.

[0026] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be understood that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. In the utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; among them, there are many ways of detachable installation, for example, it can be through the method of plug-in and snap-fit, for example, through the method of bolt connection, etc.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Beidou short message plus combined antenna, characterized in that: include: A multi-core connector, wherein the top of the multi-core connector is connected to a base; An antenna housing, wherein the bottom of the antenna housing is connected to the base, and the top of the antenna housing is bridged with a coaxial SMA connector; A Beidou short message antenna, which is placed in an antenna housing and has a four-arm spiral structure; Among them, a third antenna is connected to the SMA connector; the Beidou short message antenna includes a No. 1 PCBA board, a first antenna connected above the No. 1 PCBA board, a No. 2 PCBA board connected above the first antenna, and a second antenna connected above the No. 2 PCBA board. The No. 1 PCBA board and the No. 2 PCBA board are fixedly connected to the multi-core connector through a connecting rod.

2. The Beidou short message plus combined antenna according to claim 1, characterized in that: The positions of the first antenna and the second antenna can be interchanged up and down. The first antenna can be set as a receiving antenna or a transmitting antenna, and the second antenna can be set as a transmitting antenna or a receiving antenna.

3. The Beidou short message plus combined antenna according to claim 1, characterized in that: The first antenna and the second antenna both have their own phase-shifted four-feed circuit and LC filtering suppression circuit.

4. The Beidou short message plus combined antenna according to claim 1, characterized in that: The bottom end of the SMA connector is provided with a protrusion, and the top end of the connecting rod is provided with a recess for the protrusion to be inserted.

5. The Beidou short message plus combined antenna according to claim 1, characterized in that: The third antenna is a communication antenna or a positioning antenna. The third antenna adopts a UHF antenna, and the UHF antenna adopts a spring quarter-wavelength structure.

Images