CN219917591U

CN219917591U - Compact range feed source

Info

Publication number: CN219917591U
Application number: CN202322226636.5U
Authority: CN
Inventors: 王军胜; 马丽萍
Original assignee: Beijing Jinshuo Leibo Technology Co ltd
Current assignee: Beijing Jinshuo Leibo Technology Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2023-10-27
Anticipated expiration: 2033-08-18

Abstract

The utility model discloses a compact range feed source, which comprises two radiating units which are orthogonally arranged, wherein each radiating unit comprises a first loading ridge and a second loading ridge which are oppositely arranged, a feed ring is arranged on the first loading ridge, one end of the feed ring is connected with a first rectangular groove, the first rectangular groove points to the second rectangular groove on the second opposite loading ridge, the bottom end of the first loading ridge is provided with a cylindrical coaxial feed interface, the cylindrical coaxial feed interface is communicated with the first rectangular groove, an SMA connector is arranged at the cylindrical coaxial feed interface, one end of the SMA connector is connected with a cylindrical coaxial inner conductor which extends into the first rectangular groove, and a plurality of loading gaps are formed on the first loading ridge and the second loading ridge. The utility model is a broadband, dual-polarized, rear-fed and compact-range feed source, meets the installation requirement of a small-space, ensures that the electrical performance index is not lost, provides convenience for interface design, and is particularly suitable for the scene application of various frequency bands.

Description

Compact range feed source

Technical Field

The utility model relates to the technical field of compact range feeds, in particular to a compact range feed.

Background

A compact feed (Constricted field feed) is a feed design commonly used in antenna systems, in which control of the antenna radiation pattern is achieved by introducing a pair of coaxial feeds in the feed portion, which are placed at the feed opening and limit the propagation of electromagnetic waves by a series of special structures. Currently, general vivaldi antennas are widely applied to the fields of wireless communication, radar systems, unmanned aerial vehicles, satellite communication, electronic reconnaissance and the like, but with the development of new technologies, high efficiency of compact range testing has been put forward by a plurality of users in the scheme requirements, broadband, dual-polarized, backfeed and compact range feeds are the most central passive devices and the most urgent needs at present, so that in order to meet the needs, the present utility model improves on the basis of the general vivaldi antennas and designs a compact range feed.

Disclosure of Invention

In view of the above technical problems in the related art, the present utility model provides a compact feed capable of solving the above problems.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a compact range feed, includes two are the radiating element of quadrature setting, every radiating element all includes loading ridge first and loading ridge second that set up relatively, be equipped with a feed ring on the loading ridge first, the one end of feed ring is connected with rectangular groove first, rectangular groove first directional opposite rectangular groove second on the loading ridge second, a cylinder coaxial feed interface has been seted up to the bottom of loading ridge first, cylinder coaxial feed interface with rectangular groove first is linked together, the coaxial feed interface department of cylinder installs the SMA joint, the one end that the SMA connects is connected with stretches into the coaxial inner conductor of cylinder in the rectangular groove first, loading ridge first with all be equipped with a plurality of loading gaps on the loading ridge second.

Furthermore, the inner curved surfaces of the first loading ridge and the second loading ridge are both e-exponential function curves, and the two loading ridges of each radiation unit are opposite and are arranged in a horn shape.

Further, the number of the SMA connectors is two, and the SMA connectors are respectively arranged at the bottom ends of the two loading ridges.

The utility model has the beneficial effects that: the utility model is a broadband, dual-polarized, rear-fed and compact-range feed source, meets the installation requirement of a small-space, ensures that the electrical performance index is not lost, provides convenience for interface design, and is particularly suitable for the scene application of various frequency bands.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

The utility model is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a compact range feed according to an embodiment of the present utility model;

FIG. 2 is a side view of a compact range feed according to an embodiment of the present utility model;

FIG. 3 is a top view of a compact range feed according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of B-B in FIG. 3;

fig. 5 is a bottom view of a compact range feed in accordance with an embodiment of the present utility model.

In the figure:

1. loading a first ridge; 2. loading a second ridge; 3. a feed ring; 4. rectangular grooves I; 5. rectangular grooves II; 6. an SMA joint; 7. a cylindrical coaxial inner conductor; 8. loading the gap; 9. an inner curved surface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-5, a compact range feed according to an embodiment of the present utility model includes two radiating elements disposed in an orthogonal manner, each radiating element includes a loading ridge 1 and a loading ridge 2 disposed opposite to each other, a feeding ring 3 is disposed on the loading ridge 1, one end of the feeding ring 3 is connected with a rectangular groove 1, the rectangular groove 4 points to a rectangular groove 5 on the opposite loading ridge 2, a cylindrical coaxial feed interface is disposed at the bottom end of the loading ridge 1, the cylindrical coaxial feed interface is communicated with the rectangular groove 4, an SMA connector 6 is mounted at the cylindrical coaxial feed interface, one end of the SMA connector 6 is connected with a cylindrical coaxial inner conductor 7 extending into the rectangular groove 4, and a plurality of loading gaps 8 are disposed on the loading ridge 1 and the loading ridge 2.

In one embodiment of the utility model, the two radiating elements are in the form of a central orthogonal dual polarized structure.

In one embodiment of the present utility model, the SMA connectors 6 are two in number and are respectively installed at the bottom ends of the two loading ridges 1, and are in a back feed double feed form. The two paths of signals are respectively input through the SMA end, after being enhanced by the feed ring 3, the signals flow along the track of the loading ridge, finally, the signals radiate to the air at the tail end, and the SMA joint end feed signals can be independently sent in a single path or simultaneously sent in a double path. The backfeed form is convenient to operate and is also convenient to integrate with other transmitting and receiving equipment for use.

In one embodiment of the utility model, a feed loop is provided on the radiating element, the feed loop being designed to achieve efficient signal transmission and antenna performance. It can provide good circular polarization characteristics, and is suitable for applications requiring circular polarization signals. In addition, the feed loop may provide broadband performance and a low profile, making it suitable for a variety of frequency range and space limited applications. Meanwhile, a loading gap is arranged on the radiation unit, and the effect of introducing the loading gap into the feed source structure is to realize the frequency tuning of the antenna and improve the antenna performance by adjusting the size and the position of the gap. The loading gap can regulate and control the impedance, gain, radiation characteristic and the like of the antenna. The broadband is realized by improving the loading ridge curve shape and optimizing the size of the feed loop and loading through loading gaps.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a compact range feed, its characterized in that includes two are the radiating element that the quadrature set up, every radiating element all includes loading first (1) and loading second (2) of relative setting, be equipped with one feed ring (3) on loading first (1), the one end of feed ring (3) is connected with rectangle groove first (4), rectangle groove first (4) directional relative rectangle groove second (5) on loading second (2), a cylinder coaxial feed interface has been seted up to the bottom of loading first (1), cylinder coaxial feed interface with rectangle groove first (4) are linked together, cylinder coaxial feed interface department installs SMA joint (6), the one end of SMA joint (6) is connected with stretches into cylinder coaxial inner conductor (7) in rectangle groove first (4), loading first (1) and loading second (2) are last all to be equipped with a plurality of loading gaps (8).

2. A compact range feed as claimed in claim 1, wherein the inner curved surfaces (9) of the first (1) and second (2) loading ridges are each an e-exponential function curve, the two loading ridges of each radiating element being flared opposite each other.

3. A compact range feed as claimed in claim 1, characterised in that the SMA connectors (6) are two in number and are mounted to the bottom ends of two of the loading ridges (1) respectively.