Difference slit MIMO (Multiple Input Multiple Output) antenna with high common mode rejection ratio

A high common-mode suppression and slot technology, which is applied to antennas, devices that make antennas work in different frequency bands at the same time, and radiating element structures, etc. The effect of high common mode rejection ratio
CN104882677AActive Publication Date: 2015-09-02SOUTH CHINA UNIV OF TECH
4 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2015-09-02

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a difference slit MIMO (Multiple Input Multiple Output) antenna with a high common mode rejection ratio. The antenna comprises a medium substrate and multiple antenna units. Each antenna unit comprises a floor and a micro-strip feed line, wherein the floor is arranged on the top floor of the medium substrate and is etched with a T-shaped slit, and the micro-strip feed line is arranged on the bottom floor of the medium substrate and divides the T-shaped slit into an open-circuit slit and a short-circuit slit. The floors of the multiple antenna units are connected and cover the top floor of the medium substrate. According to the antenna provided by the invention, the specific difference feed structure and the slit combination are adopted to achieve a high common mode rejection effect. The antenna is advantaged by miniaturization, simple structure, high common mode rejection ratio, dual band, high isolation and the like, can meet requirements for miniaturization, low cost, easy processing, and easy integration of a difference circuit, and can be widely applied to a WLAN (Wireless Local Area Network) system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a MIMO antenna, in particular to a differential slot MIMO antenna with a high common-mode rejection ratio, belonging to the field of wireless mobile communication. Background technique

[0002] With the rapid development of wireless mobile communication in recent years, the resources for wireless mobile communication to increase the data transmission rate - frequency bandwidth and transmission power are on the verge of saturation. The rapid development of mobile communication has brought about the increasing shortage of spectrum resources. How to improve the transmission rate and quality of information on the existing spectrum resources has become the focus of research in today's society. MIMO (Multiple-Input Multiple-Output) wireless communication technology has entered people's field of vision because of its huge advantage of greatly increasing channel capacity and data transmission rate without losing frequency bandwidth and...

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