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A beamforming dual circularly polarized antenna

A dual-circular polarization and beam-forming technology, which is applied to the connection of the antenna grounding switch structure, the waveguide horn, the structure of the radiating element, etc. Simple structure and good circular polarization performance

Active Publication Date: 2022-08-02
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a beam-forming dual circularly polarized antenna to solve the technical problems that the existing dual circularly polarized antenna has a complex structure and is difficult to debug

Method used

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  • A beamforming dual circularly polarized antenna
  • A beamforming dual circularly polarized antenna
  • A beamforming dual circularly polarized antenna

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Embodiment Construction

[0030] In the following, a specific embodiment is given for detailed description in conjunction with the accompanying drawings.

[0031] Please refer to figure 1 and figure 2 , a beamforming dual circularly polarized antenna, comprising an orthogonal mode coupler 1, a rectangular waveguide 2, a horn antenna 3, a dielectric cover 4 and a metal forming ring 5 arranged in sequence from bottom to top:

[0032] The orthogonal mode coupler 1 includes a circular waveguide cavity 101 , a metal diaphragm 102 , a lateral rectangular port 103 and an oblong transformation section 104 . The side of the circular waveguide cavity 101 is slotted, and the lateral The rectangular port 103 is communicated and arranged outside the groove, and the lateral rectangular port 103 is a horizontal rectangular port.

[0033] The metal diaphragm 102 is erected in the circular waveguide cavity 101 and located in the lower section facing the lateral rectangular port 103 . Divide into two equal parts.

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PUM

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Abstract

The invention relates to a beam-forming dual circularly polarized antenna, comprising orthogonal mode couplers, a rectangular waveguide, a horn antenna, a dielectric cover and a metal forming ring arranged in sequence from bottom to top: the orthogonal mode coupler includes a circular The waveguide cavity, the metal diaphragm, the lateral rectangular port and the rectangular-circular transformation section, the lateral rectangular port is communicated with the circular waveguide cavity; the metal diaphragm is erected in the circular waveguide cavity and located in the circular waveguide cavity facing the lateral rectangular port. The lower section; the rectangular-circle transformation section gradually transitions the circular port at the lower end of the circular waveguide cavity to a rectangular port along the axis downward; the rectangular waveguide is connected clockwise or counterclockwise around the axis of the circular waveguide cavity and is connected and arranged in the circle. The small-diameter end of the horn antenna is connected to the rectangular waveguide; the dielectric cover is arranged on the large-diameter end of the horn antenna, and the metal forming ring is etched on the top surface of the dielectric cover. The invention solves the technical problems that the existing dual circularly polarized antenna is complex in structure and difficult to debug.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a beam-forming dual circularly polarized antenna. Background technique [0002] In satellite communication systems, in order to effectively cover a specific area, reduce adjacent area interference and improve efficiency, the beam of the antenna is usually required to have a special shape. Generally, the radiation characteristics of the antenna are controlled by shaping technology to meet this requirement. Antennas that achieve shaping usually include reflector antennas, array antennas, and horn antennas. Reflector antennas and array antennas are expensive and difficult to implement, while horn antennas have the advantages of low cost and small size, and are suitable for satellite communications that require strict antenna size. [0003] Moreover, with the continuous improvement of the communication system's requirements for capacity and anti-interference a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q13/02
CPCH01Q1/50H01Q1/38H01Q1/36H01Q13/02
Inventor 马岩冰沈千朝张宇环李亮苏醒渠芬芬王盛
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM