Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

SW multiradio share antenna isolating coupling system

A technology of isolated coupling and shared antenna, applied in the directions of multi-terminal pair network, impedance network, electrical components, etc., can solve the problems of protection frequency bandwidth, insufficient use of antenna working frequency band, etc., to reduce antenna site, save time and labor for maintenance, The effect of improving the electromagnetic environment

Inactive Publication Date: 2002-09-25
COLLEGE OF INFORMATION ENG PLA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the guard frequency band of this coupler is relatively wide, so that the working frequency band of the antenna cannot be fully utilized

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
  • SW multiradio share antenna isolating coupling system
  • SW multiradio share antenna isolating coupling system
  • SW multiradio share antenna isolating coupling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Such as figure 1 As shown, the short-wave multi-machine shared antenna isolation coupling system is composed of a multi-channel isolation coupler, a three-mode matching feed network, and an antenna. The multi-channel isolation coupler and the three-mode matching feed network are connected through a high-frequency transmission line (coaxial cable) connect. Such as figure 2 As shown, the multi-channel isolation coupler is formed by cascading more than two signal isolation couplers, and the signal isolation coupler is composed of two identical broadband transmission line transformer magic Ts, two pairs of identical all-pass network phase balancers and Two identical filters are composed and connected sequentially according to the input-output relationship in the order of magic T, phase shifter, filter, phase shifter, and magic T. The two pairs of phase shifters are diagonal to the filter Symmetrical, the phase difference between the two phase shifters ΦA and ΦB of each p...

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 short-wave machine-shared antenna isolation coupling system includes a three-mode matching feed network and an antenna, and it also includes a multi-channel isolation coupler. The multi-channel isolation coupler and the three-mode matching feed network are connected through a high-frequency transmission line. The multi-channel isolation coupler is formed by cascading more than two signal isolation couplers. The signal isolation coupler consists of two identical broadband transmission line transformer magic Ts, two pairs of identical all-pass network phase shifters and two complete The same filter composition. The invention improves the utilization rate of the antenna, greatly reduces the occupied area of ​​the antenna, and makes full use of the working frequency band of the antenna. #!

Description

technical field [0001] The invention relates to an isolation and coupling system for a short-wave transmitting system, in particular to an isolation and coupling system for a multi-machine shared antenna used in a point-to-multipoint communication system. technical background [0002] The existing transmitter sharing system at home and abroad is a three-transmitter sharing system composed of a three-mode matching feed network and an antenna. Because only one antenna can be shared by three transmitters, the antenna utilization rate is not high. In order to realize more than three-way communication, such a system can only be added, which will undoubtedly greatly increase the footprint of the antenna. In addition, multi-channel signals need to be isolated and coupled, and the current multi-channel isolation couplers are mostly based on the principle of short-cut transmission lines and trap circuit principles. Because these two isolation couplers are difficult to tune when the o...

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 Patents(China)
IPC IPC(8): H03H7/00
Inventor 高凤玉张广求罗小武白贵芳李善文
Owner COLLEGE OF INFORMATION ENG PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com