阅读说明：本技术 一种多排馈源阵列照射的抛物柱面天线 (Parabolic cylinder antenna irradiated by multi-row feed source array ) 是由 戴顺岐 杨国辉 申展 于 2020-07-08 设计创作，主要内容包括：本发明公开了一种多排馈源阵列照射的抛物柱面天线,属于通信技术领域。其包括抛物柱面反射面和多个馈源,多个馈源呈矩形阵列排布,且矩阵阵列的中心位于抛物柱面反射面的焦线上；还包括一个开关控制器和多个相位控制器,每排馈源均连接有一个相位控制器,每个相位控制器均连接在所述开关控制器上。本发明通过矩形阵列馈源和控制器的配合,不仅具有高增益性能,还能够实现完全波束扫描。(The invention discloses a parabolic cylinder antenna irradiated by a multi-row feed source array, belonging to the technical field of communication. The feed sources are arranged in a rectangular array, and the center of the matrix array is positioned on the focal line of the parabolic cylindrical surface reflecting surface; the phase controller is connected with each row of feed sources, and each phase controller is connected with the switch controller. The invention not only has high gain performance, but also can realize complete wave beam scanning by matching the rectangular array feed source with the controller.)

1. A multi-row feed source array irradiated parabolic cylinder antenna comprises a parabolic cylinder reflecting surface (1) and a feed source (3), and is characterized in that the feed source is a multi-row feed source arranged up and down; each row of the feed sources is parallel to the focal line of the parabolic cylinder reflecting surface, and the focal line of the parabolic cylinder reflecting surface is positioned between the uppermost row of the feed sources and the lowermost row of the feed sources.

2. The parabolic dish antenna illuminated by a multi-row feed array of claim 1, wherein the horns of all the feeds are located in the same plane, and the focal line of the parabolic dish is located in said plane.

3. The parabolic cylinder antenna illuminated by the multi-row feed source array according to claim 1, further comprising a switch controller and a plurality of phase controllers, wherein each row of feed sources is connected with one phase controller, and each phase controller is connected with the switch controller.

4. The parabolic cylinder antenna illuminated by a multi-row feed array according to claim 3, further comprising an antenna beam controller, wherein all the phase controllers and the switch controller are connected to the antenna beam controller.

Technical Field

The invention relates to the technical field of communication, in particular to a parabolic cylinder antenna irradiated by a multi-row feed source array.

Background

In the field of communications, antennas capable of forming high gain and beam scanning have mainly the following configurations, but each has some disadvantages in terms of performance.

1. The parabolic antenna can realize high gain performance, but needs a two-dimensional mechanical rotating structure to realize beam scanning, and has a complex structure.

2. The phased array antenna can realize high gain performance, automatic beam scanning is realized by controlling the phase shifters, but a large number of phase shifters, a feed network and other devices are needed, and the system is very complex.

3. The parabolic cylinder antenna irradiated by the array of the feed sources can realize one-dimensional mechanical scanning and one-dimensional phased beam scanning, but the pitching surface can only realize one beam, the beam scanning of the pitching surface needs mechanical rotation, and the structure is still complex.

Disclosure of Invention

In view of the above, the present invention provides a parabolic cylinder antenna illuminated by multiple rows of feed arrays. The antenna has the advantages of high gain, scannable wave beam and the like, has simple system composition and strong maintainability, and is suitable to be used as a large ground station antenna.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a multi-row feed source array irradiated parabolic cylinder antenna comprises a parabolic cylinder reflecting surface and a feed source, wherein the feed source is a multi-row feed source which is arranged up and down; each row of the feed sources is parallel to the focal line of the parabolic cylinder reflecting surface, and the focal line of the parabolic cylinder reflecting surface is positioned between the uppermost row of the feed sources and the lowermost row of the feed sources.

Furthermore, the bell mouths of all the feed sources are positioned in the same plane, and the focal lines of the parabolic cylinder reflecting surfaces are positioned in the plane.

Furthermore, the device also comprises a switch controller and a plurality of phase controllers, wherein each row of feed sources is connected with one phase controller, and each phase controller is connected with the switch controller.

Furthermore, the system also comprises an antenna beam controller, and all the phase controllers and the switch controller are connected with the antenna beam controller.

The invention adopts the technical scheme to produce the beneficial effects that:

1. the invention not only has the high gain performance of the parabolic cylinder antenna in the prior art, but also can realize complete beam scanning by matching the multiple rows of feed sources with the controller.

2. Compared with a single-row feed source, the multi-row feed source has more feed sources, and is easy to realize high-power work by utilizing a space power synthesis technology.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a partial structure of two rows of feeds in fig. 1.

Fig. 3 is a schematic diagram of the present invention.

In the figure: 1. parabolic cylinder reflecting surface, 2, reflecting surface supporting structure, 3, feed source, 4, feed source supporting structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

A multi-row feed source array illuminated parabolic cylinder antenna comprises a parabolic cylinder reflecting surface and a feed source, wherein the feed source is positioned on a focal line of a parabolic cylinder; the feed source is provided with a plurality of rows; each row of the feed sources is parallel to the focal line of the parabolic cylinder reflecting surface, and the focal line of the parabolic cylinder reflecting surface is positioned between the uppermost row of the feed sources and the lowermost row of the feed sources.

Furthermore, the bell mouths of all the feed sources are positioned in the same plane, and the focal lines of the parabolic cylinder reflecting surfaces are positioned in the plane.

The device further comprises a reflecting surface supporting structure and a feed source supporting structure, wherein the reflecting surface supporting structure and the feed source supporting structure are both frame structures formed by transverse rods and longitudinal rods; the reflecting surface supporting structure is positioned below the parabolic cylindrical reflecting surface and provides support for the parabolic cylindrical reflecting surface; the feed source supporting structure is positioned below the feed sources in the rectangular array and provides support for the plurality of feed sources.

Further, the system also comprises a switch controller and a phase controller; each row of the rectangular array feed sources is connected with a phase controller, and each phase controller is connected to the same switch controller.

Furthermore, each phase controller is also connected to the same antenna beam controller; the antenna beam controller is also connected with the switch controller.

The following is a more specific example:

referring to fig. 1 and 3, a parabolic cylinder antenna illuminated by a multi-row feed source array is composed of a parabolic cylinder reflecting surface 1, a reflecting surface supporting structure 2, a feed source 3 and a feed source supporting structure 4. The surface curved surface of the parabolic cylindrical reflecting surface 1 adopts a parabolic cylindrical surface, the parabolic cylindrical surface is fixed on the reflecting surface supporting structure 2 by a fastener, and the parabolic cylindrical reflecting surface 1 is used for reflecting electromagnetic signals, ensuring that antenna beams point to a specific direction and realizing high gain performance. The reflecting surface supporting structure 2 is processed into a frame structure by adopting a metal material, is directly fixed on the ground and is used for supporting the reflecting surface 1 of the parabolic cylinder and ensuring the curved surface shape of the reflecting surface.

The feed source 3 is formed by arranging two rows of feed sources. The projection of the parabolic cylinder reflecting surface 1 on the xz plane is a parabola, the vertex of the parabola is O, the focus F of the parabola is on the z axis, and the focus F is the central position of the feed source 3. The feed 3 is secured to the feed array support structure 4 with fasteners. The feed source array supporting structure 4 is processed into a frame structure by adopting a metal material, is directly fixed on the ground and is used for supporting the feed source 3 and ensuring the array shape of the feed source. The feed source 3 is connected with external receiving and transmitting equipment through a cable, and is used for realizing the conversion of signals between space and the receiving and transmitting equipment.

The working principle of the invention is as follows: when the signal is transmitted, the signal sent by the transmitting equipment is transmitted to the space through the feed source 3 and is reflected to the free space through the parabolic cylinder reflecting surface 1 to form a high-gain wave beam to be transmitted to the designated direction. The receiving and transmitting of the antenna are reciprocal processes, free space signals from a certain direction are reflected to the feed source 3 through the parabolic cylinder reflecting surface 1, and the signals are output to external receiving equipment after being converted by the feed source 3.

The feed control is carried out on the feed sources in different rows by utilizing a switch controller, so that the beam scanning of an xz plane is realized; and performing phase control on the feed sources in the same row by using a phase controller to realize the beam scanning of a yz plane.

The schematic diagram is shown in fig. 3. Each row of feed sources is respectively connected with the phase controller, so that the phase control of each row of feed sources can be realized, and the beam scanning of the yz plane can be realized. Each row of feed sources is connected with the switch controller, and one row of feed sources can be selected for feeding, so that beam scanning of an xz plane is realized. The phase controller and the switch controller are both connected with the antenna beam controller, and the antenna beam controller controls the phase controller and the switch controller according to the computer instruction of the beam direction to realize beam scanning.