Unlock instant, AI-driven research and patent intelligence for your innovation.

Double mode transmission mode for antenna feed line signal

A transmission method, antenna feeder technology, applied in the transmission system, electrical components, etc., can solve the problems of non-feeder transmission solutions, feeder system transmission performance degradation, low processing efficiency, etc., to extend the signal transmission distance and enhance anti-interference performance, quality improvement

Inactive Publication Date: 2007-10-31
杭州天寅无线通信有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current complex electromagnetic wave environment in the air, in most cases, the signal-to-noise ratio is relatively poor in the radio spectrum range where the antenna receives the signal. If the transmission is a broadband signal, the existence of a large interference signal makes the feeder system Transmission performance degrades, processing becomes complex, and processing efficiency is low
Therefore, simply adopting broadband mode is not the best solution for feeder transmission

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
  • Double mode transmission mode for antenna feed line signal
  • Double mode transmission mode for antenna feed line signal
  • Double mode transmission mode for antenna feed line signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] As shown in Figure 1: 11 represents the antenna, 12 represents the preprocessing module, 13 represents the dual-mode switching switch, 14 represents the wideband signal processing channel, 15 represents the narrowband signal processing channel, 16 represents the two-to-one switch selector, and 17 represents the transmission medium .

[0022] A feeder transmission system with broadband / narrowband dual-mode coexistence, comprising the following steps:

[0023] After the signal is received from the antenna 11, it is pre-amplified and filtered through the pre-processing module 12, and then through the dual-mode switching switch 13, one of the broadband mode processing and the narrowband mode processing is selected. Switching is realized by artificially generating a mode switching control signal based on the judgment of the received signal effect. If the broadband processing mode is selected, the amplified signal passes through the broadband signal processing channel 14 to ...

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

This invention relates to a signal transmission method for antenna feed lines including: signals got from the antenna are amplified and filtered to pass a double mode switch to be processed by the mode of broadband or narrow band and input into a related transmission medium corresponding to the selected process mode. When applying the broadband mode, one antenna can provide multiple receivers avoiding the signal power loss for the present technology and when applying the narrow band mode, it can increase the efficiency of the signal process and transmission.

Description

technical field [0001] The invention relates to the field of antenna feeder signal transmission, in particular to antenna feeder transmission of short-wave and ultra-short-wave, and realizes a dual-mode working method in which broadband and narrowband coexist. Background technique [0002] An antenna feeder is a transmission system that transmits electrical signals received on an antenna to a receiver. Commonly used antenna feeders generally use coaxial cables, which greatly attenuate radio frequency signals. Generally, a shielded cable of several meters has about 1dB attenuation. Due to the large distance between the antenna and the receiver, the coaxial cable not only has relatively large attenuation, but also is susceptible to other electromagnetic interference, which makes the performance of the receiver worse. [0003] The broadband mode means that the feeder transmission system from the antenna to the receiver transmits all the broadband signals of the entire frequenc...

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): H04B1/16H04B1/18
Inventor 赵民建许峰郑剑李衡
Owner 杭州天寅无线通信有限公司