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

Compact Antenna Feed Calibration Network

An antenna feeding and antenna calibration technology, which is applied in the field of feeding calibration comprehensive network design, can solve the problems of calibration network amplitude-phase consistency variation, mutual crosstalk between antenna signals, complex processing and installation, etc., and achieve good amplitude-phase consistency , reduced section thickness, compact and simple structure

Active Publication Date: 2020-04-28
10TH RES INST OF CETC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current base station antenna calibration network mostly adopts an open type. Although the structure is simple and the installation is relatively convenient, its electrical performance is significantly affected by the electromagnetic environment inside the antenna, the anti-interference ability is relatively poor, and the space occupied is relatively large.
Although the general closed calibration network has strong anti-interference ability, it will cause crosstalk between the signals of each channel of the antenna, resulting in poor amplitude and phase consistency of the calibration network.
In order to solve the problem of mutual crosstalk between channels improved by the closed calibration network, the calibration network can improve its amplitude and phase consistency by adding a metal shielding box, but its processing and installation are relatively complicated and occupy a large space

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
  • Compact Antenna Feed Calibration Network
  • Compact Antenna Feed Calibration Network
  • Compact Antenna Feed Calibration Network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] refer to figure 1 . An antenna feed calibration network described in the embodiment of the present invention mainly includes three parts: the upper antenna metal floor 1 , the middle antenna combiner feed network 2 and the lower antenna calibration network 3 . The upper antenna metal floor 1, the middle antenna combiner feed network 2 and the lower antenna calibration network 3 with a symmetrical structure, the upper antenna metal floor 1 is the top layer, and the upper antenna metal floor 1 is equipped with the corresponding middle antenna combiner feed network 2 The embedding grooves of each combiner module 7 are staggered at the same interval to bury each combiner module 7 in the metal floor. The combiner is installed in blocks, and each two-unit sub-array The two combiners required for polarization are used as a module, and are fastened together with the upper antenna metal floor 1 in the form of block installation to form the feed network of the middle antenna com...

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 compact antenna feed calibration network, and aims at providing the highly-versatile and reliable integrated feed calibration network used for antennas of a base station. According to the compact antenna feed calibration network, an upper-layer antenna metal floor (1) as a top layer is provided with a corresponding intermediate-layer antenna combiner feed network (2) and embedded grooves, combiner modules are embedded into the embedded grooves, the embedded grooves are arranged in a staggered manner at the same interval, combiners are connected antenna ports and ports corresponding to a lower-layer antenna calibration network (3) via four different model design modules, two combiners needed by dual polarization of every two unit subarrays serve as one module, and the modules are fastened and combined with the upper-layer antenna metal floor in a modularized installation way. the intermediate-layer antenna combiner feed network for connecting an antenna unit with the lower-layer antenna calibration network is formed, the lower-layer antenna calibration network is of a strip line structure, and 32 parallel coupling linear directional couplers (15) and a 1-to-32 power divider (14) are distributed in an H-shaped PCB of the lower-layer antenna calibration network.

Description

technical field [0001] The invention relates to a design of a comprehensive network for feed calibration with a compact structure. More specifically, the present invention relates to a feed network for a base station antenna and its underlying antenna calibration network. [0002] technical background [0003] The antenna is one of the key hardware devices of the mobile communication system. With the rapid development of mobile communication technology, the system is becoming more and more complex, and the requirements for antenna performance are getting higher and higher. With the continuous development of communication technology, mobile communication has entered the 4G-LTE era from the initial analog communication, and gradually entered the 5G era, and the mobile communication base station antenna has also evolved into a smart antenna form. Mobile base station antennas generally adopt the form of an array, and usually two units are used as its sub-array to reduce the num...

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): H04B17/12
CPCH04B17/12
Inventor 王军会胡大成何凌云何海丹张云魏旭何林涛张克非
Owner 10TH RES INST OF CETC
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