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X/Ka multi-frequency broadband multi-mode feed source

A broadband and modular technology, applied in the field of X/Ka multi-frequency broadband multi-mode feed, can solve problems such as difficult design

Active Publication Date: 2019-05-21
CHINA ELECTRONICS TECH GRP NO 39 RES INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Existing conventional low-frequency multi-mode feeds are difficult to design

Method used

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  • X/Ka multi-frequency broadband multi-mode feed source
  • X/Ka multi-frequency broadband multi-mode feed source
  • X/Ka multi-frequency broadband multi-mode feed source

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0029] Such as Figure 1-3 As shown, the X / Ka multi-frequency broadband multi-mode feed source in this embodiment includes an input circular waveguide 1, a conical waveguide section 2, a multimode horn variable mode section 3, a straight waveguide radiation section 4, and two pairs of orthogonal mode couplers 5, filter 6. The input circular waveguide 1 is connected to the conical waveguide section 2, the conical waveguide section 2 is connected to the multimode horn variable mode section 3, and the multimode horn variable mode section 3 is connected to the straight waveguide radiation section 4 to radiate energy to space. The circumferential part of the conical waveguide section 2 is connected with two pairs of orthogonal mode couplers 5 and connected with fo...

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Abstract

The invention provides an X / Ka multi-frequency broadband multi-mode feed source. The X / Ka multi-frequency broadband multi-mode feed source comprises an input circular waveguide, a conical waveguide section, a variable-mode section of a multi-mode horn , a straight waveguide radiation section, two pairs of quadrature mode couplers and a filter. Due to the quadrature mode couplers and a crease filter, a low-frequency signal is output; a high-frequency signal is inhibited; simultaneously, the low-frequency design difficulty is reduced; the multi-mode horn is adopted; a mode matching method is utilized; in combination with an optimization algorithm, the length of each step is optimized; different modes are generated; a horn input hole has a relatively low reflection coefficient; an X / Ka transceiving-frequency multi-mode feed source is designed; and the good performance is obtained.

Description

technical field [0001] The invention relates to the technical field of electromagnetic fields and microwaves, in particular to an X / Ka multi-frequency broadband multi-mode feed source. Background technique [0002] Multi-frequency shared satellite communication earth station antenna has the characteristics of large communication capacity, multi-purpose station, compact structure and low construction cost. It has become a hotspot in the current research on antenna technology. The existing conventional low-frequency multi-mode feeds are quite difficult to design. Contents of the invention [0003] In order to realize that the feed source can simultaneously cover the X / Ka transceiver frequency band and reduce the difficulty of low-frequency design, the present invention proposes an X / Ka multi-frequency broadband multi-mode feed source. [0004] Technical scheme of the present invention is: [0005] The X / Ka multi-frequency broadband multi-mode feed source is characterized i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/02H01Q1/36H01P5/12H01P1/20
Inventor 张宇
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST
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