Multi-phase receiving antenna

Abstract

The utility model relates to the technical field of communication, in particular to a multi-phase receiving antenna, which comprises a channel synthesis circuit and a plurality of LC phase offset circuits, each LC phase offset circuit comprises a first coupler, a second coupler and a third coupler, the first coupler is electrically connected with the second coupler, and the third coupler is electrically connected with the second coupler. The second coupler is connected with the third coupler through an LC phase offset circuit, and the first coupler is electrically connected with the channel synthesis circuit. According to the utility model, synthesis of received signals and channel phase difference are realized through the power division network, and meanwhile, the receiving directivity and gain are improved through multi-phase-difference channel composition.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, in particular to a multi-phase receiving antenna. Background Art

[0002] 1. In the field of radio applications, antennas are components used to receive or transmit electromagnetic waves. With the continuous development of wireless communications, the quality of antennas has an important impact on wireless communications. Antennas are also developing towards high gain, multi-directionality and multi-dimensionality, especially in some special application fields.

[0003] 2. Although many current antennas can be used in a certain direction, they cannot guarantee accuracy and receiving capability. The directivity of an antenna refers to the ability of the antenna to radiate electromagnetic waves in a certain direction. For a receiving antenna, directivity indicates the antenna's ability to receive radio waves from different directions. At the same time, in order to expand the phase difference, the microstrip line required is relatively long and relatively large in size. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a multi-phase receiving antenna, including a channel synthesis circuit and a multi-channel LC phase shift circuit, each of the LC phase shift circuits includes a first coupler, a second coupler and a third coupler, the first coupler is electrically connected to the second coupler, the second coupler is connected to the third coupler through the LC phase shift circuit, and the first coupler is electrically connected to the channel synthesis circuit.

[0005] Further preferably, the LC phase shift circuit includes an inductor L and two capacitors C, the two ends of the inductor L are respectively connected to the second coupler and the third coupler, one end of the two capacitors is connected to the two ends of the inductor L, and the other ends of the two capacitors are grounded.

[0006] Further preferably, the channel synthesis circuit comprises a plurality of couplers, and the plurality of couplers are bridge-connected to form a plurality of combining / power splitting channels, wherein each combining / power splitting channel is connected to an LC phase shift circuit.

[0007] Further preferably, the channel synthesis circuit includes three couplers, namely a fourth coupler, a fifth coupler and a sixth coupler, wherein one end of the fifth coupler is a feeding point, one end of the fifth coupler is grounded, the other two ends of the fifth coupler are respectively connected to the input ends of the sixth coupler and the seventh coupler, the sixth coupler and the seventh coupler each have one end grounded, and the other two ends of the sixth coupler and the seventh coupler are respectively connected to one LC phase shift circuit.

[0008] Further preferably, the coupler is a directional coupler, model HC1400P03S.

[0009] Further preferably, the first coupler, the second coupler and the third coupler are all directional couplers of model HC1400P03S.

[0010] Different from the prior art, the above technical solution has the following beneficial effects:

[0011] (1) The utility model realizes phase shift through a novel receiving antenna circuit structure, reduces the length of a quarter-wavelength line, and reduces the layout space;

[0012] (2) The utility model realizes the synthesis of received signals and channel phase difference through a power division network.

[0013] (3) The utility model improves receiving directivity and gain by forming a multi-phase difference channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the LC phase shift circuit structure of an embodiment of the utility model.

[0015] Figure 2 Schematic diagram of the channel synthesis circuit structure of an embodiment of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of a multi-phase receiving antenna according to an embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0018] refer to Figure 1-Figure 3 As shown, a multi-phase receiving antenna of this embodiment includes a channel synthesis circuit and a multi-channel LC phase shift circuit. The channel synthesis circuit in this embodiment includes multiple couplers, and the multiple couplers are bridge-connected to form multiple channel combining / power splitting channels, wherein each channel combining / power splitting channel is connected to one LC phase shift circuit. Specifically, the channel synthesis circuit includes three couplers, namely the fourth coupler, the fifth coupler and the sixth coupler, wherein one end of the fifth coupler is a feeding point, one end of the fifth coupler is grounded, and the other two ends of the fifth coupler are respectively connected to the input ends of the sixth coupler and the seventh coupler, and one end of the sixth coupler and the seventh coupler is grounded, and the other two ends of the sixth coupler and the seventh coupler are respectively connected to one LC phase shift circuit. The coupler is a directional coupler, and the model is HC1400P03S.

[0019] This embodiment includes four LC phase shift circuits, each of which includes a first coupler, a second coupler and a third coupler, the first coupler is electrically connected to the second coupler, the second coupler is connected to the third coupler through the LC phase shift circuit, and the first coupler is electrically connected to the channel synthesis circuit. Each LC phase shift circuit includes an inductor L and two capacitors C, the two ends of the inductor L are respectively connected to the second coupler and the third coupler, one end of the two capacitors is connected to the two ends of the inductor L, and the other ends of the two capacitors are grounded. The first coupler, the second coupler and the third coupler are all directional couplers with a model of HC1400P03S.

[0020] The working principle of this embodiment is: the channel synthesis circuit formed by three couplers connected in bridge form a multi-channel combining / power splitting channel, and the combining / power splitting of the 3dB (power equal distribution) bridge is used to realize the channel synthesis and power splitting, and the phase difference is adjusted by connecting the external LC phase shift circuit. At the same time, the external LC phase shift is added to the channel so that in the 4-channel sub-product, each channel has a 90° phase difference between the two channels, so that the 4-phase spiral radiation function can be realized. Based on this sub-product, matrix splicing can achieve 16-channel phase difference spiral radiation. Thereby, the receiving and radiation range of the antenna is increased, and the performance of the antenna is improved.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "include..." or "comprise..." do not exclude the existence of other elements in the process, method, article or terminal device including the elements. In addition, in this article, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself.

[0022] Those skilled in the art should understand that the above embodiments can be provided as methods, devices, or computer program products. These embodiments can be in the form of complete hardware embodiments, complete software embodiments, or embodiments combining software and hardware. All or part of the steps in the methods involved in the above embodiments can be completed by instructing the relevant hardware through a program, and the program can be stored in a storage medium readable by a computer device for executing all or part of the steps described in the above embodiments. The computer device includes, but is not limited to: personal computers, servers, general-purpose computers, special-purpose computers, network devices, embedded devices, programmable devices, smart mobile terminals, smart home devices, wearable smart devices, in-vehicle smart devices, etc.; the storage medium includes, but is not limited to: RAM, ROM, disk, tape, CD, flash memory, U disk, mobile hard disk, memory card, memory stick, network server storage, network cloud storage, etc.

[0023] The above embodiments are described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a computer device to generate a machine, so that the instructions executed by the processor of the computer device generate instructions for implementing the process in the flowchart. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0024] These computer program instructions may also be stored in a computer device readable memory capable of directing a computer device to operate in a specific manner, so that the instructions stored in the computer device readable memory produce a manufactured product including an instruction device, the instruction device implementing the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0025] These computer program instructions can also be loaded onto a computer device so that a series of operating steps are executed on the computer device to produce a computer-implemented process, whereby the instructions executed on the computer device provide for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0026] Although the above embodiments have been described, once those skilled in the art know the basic creative concepts, they can make additional changes and modifications to these embodiments. Therefore, the above description is only an embodiment of the present invention and does not limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-phase receiving antenna, characterized in that: It includes a channel synthesis circuit and a multi-channel LC phase shift circuit, each of the LC phase shift circuits includes a first coupler, a second coupler and a third coupler, the first coupler is electrically connected to the second coupler, the second coupler is connected to the third coupler through the LC phase shift circuit, and the first coupler is electrically connected to the channel synthesis circuit.

2. The multi-phase receiving antenna according to claim 1, characterized in that: The LC phase shift circuit includes an inductor L and two capacitors C. Two ends of the inductor L are connected to the second coupler and the third coupler respectively. One end of the two capacitors is connected to the two ends of the inductor L, and the other ends of the two capacitors are grounded.

3. The multi-phase receiving antenna according to claim 1 or 2, characterized in that: The channel synthesis circuit comprises a plurality of couplers, and the plurality of couplers are bridge-connected to form a plurality of combining / power dividing channels, wherein each combining / power dividing channel is connected to an LC phase shift circuit.

4. The multi-phase receiving antenna according to claim 3, characterized in that: The channel synthesis circuit includes three couplers, namely a fourth coupler, a fifth coupler and a sixth coupler, wherein one end of the fifth coupler is a feeding point, one end of the fifth coupler is grounded, the other two ends of the fifth coupler are respectively connected to the input ends of the sixth coupler and the seventh coupler, one end of the sixth coupler and the seventh coupler are respectively grounded, and the other two ends of the sixth coupler and the seventh coupler are respectively connected to one LC phase shift circuit.

5. The multi-phase receiving antenna according to claim 3, characterized in that: The coupler is a directional coupler, model HC1400P03S.

6. The multi-phase receiving antenna according to claim 1 or 2, characterized in that: The first coupler, the second coupler and the third coupler are all directional couplers of model HC1400P03S.

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