Waveguide-type polarization splitter

A splitter and waveguide technology, applied in the field of waveguide-type polarization splitters, can solve the problems of difficult adjustment of single-mode device, poor cross-polarization level of orthogonal membrane coupler, long membrane size, etc. Reduce, good cross-polarization level, the effect of reducing the length of the die

Inactive Publication Date: 2010-08-04
NAT SPACE SCI CENT CAS
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a waveguide in order to overcome the problems of the existing single-diaphragm structure such as very long diaphragm size, difficult adjustment of single-mode devices, and poor cross-polarization levels of orthogonal film couplers. Type polarization separator to form a satellite antenna with a compact corrugated horn

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waveguide-type polarization splitter
  • Waveguide-type polarization splitter
  • Waveguide-type polarization splitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention adopts a novel compact double-die structure. In order to reduce the size and weight of the corrugated horn, a compact corrugated horn is used so that the same pattern is obtained in both main planes. A genetic algorithm is a search technique that mimics natural selection. Unlike other optimization algorithms that rely on gradient information, the genetic algorithm directly gives the optimal solution in the entire space. In addition, the genetic algorithm is relatively robust and simple, and the calculation speed is faster than the traversal method. In this application, FDTD and micro-genetic algorithm are used to optimize the VSWR, and the optimization parameter is the size of the FDTD unit. This example gives an analysis and design example of a compact and conical corrugated horn for a dual-polarization deploy...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a waveguide-type polarization splitter, which comprises a main waveguide pipe, a side wall waveguide coupling window on the top face of the main waveguide pipe and matrixes in the main waveguide pipe. The waveguide-type polarization splitter is characterized in that: the number of the matrixes is two or more and the matrixes are parallelly arranged in the main waveguide pipe; a tuning step positioned below the side wall waveguide coupling window is correspondingly arranged at the bottom of the main waveguide pipe; and the tuning step is a rectangular metal box body arranged at the bottom of the main waveguide pipe, and the front side face and the back side face of the metal box body are pressed against the front side face and the back side face of the main waveguide pipe. The number of the matrixes is two or more and the matrixes are parallelly arranged in the main waveguide pipe in a way of deviating from the waveguide coupling window. The metal box body of the tuning step is a box body with five sides and is buckled at the bottom of the main waveguide pipe in a way of deviating from or facing the side wall waveguide coupling window. The positions and sizes of the matrixes are determined by adopting a method of combining a finite-difference time-domain method and a genetic algorithm.

Description

technical field [0001] The invention relates to the field of dual-polarization antenna structure in satellite transceiver, in particular to a waveguide type polarization separator. Background technique [0002] The weight and size of the payload are very important factors for the satellite during the launch phase of the satellite. The polarization separator is a very important part of the dual-polarized antenna structure, usually located behind the circular horn, and its linear polarization The output is used to excite the circular waveguide, and the input is excited by two rectangular waveguides. The size and weight of the antenna feed are very important. Generally speaking, the smaller the weight and size, the better. [0003] Most of the existing waveguide dual-polarization splitters are orthogonal mode couplers, which adopt the single-mode structure of the main waveguide, and extract the vertically polarized signal through the coupling hole. The structure includes: the m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/16
Inventor 王宏建陈雪刘广程岳云
Owner NAT SPACE SCI CENT CAS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap