Novel coupled feed antenna aiming at clearance-free rear metal shell

Abstract

The invention provides a novel coupled feed antenna aiming at a clearance-free rear metal shell. The novel coupled feed antenna comprises a PCB and an antenna main body arranged on the PCB, wherein the antenna main body is provided with a feed point, a first feed branch and a second feed branch; a first intercoupling branch is coupled with the first feed branch and the second feed branch; a second intercoupling branch is coupled with the first intercoupling branch, wherein the first intercoupling branch and the second intercoupling branch are arranged at the part close to the edge of the PCB. By the coupled feed and the reasonable parasitic element configuration for the antenna, the bandwidth of the antenna is widened greatly, and the design difficulty of the antenna on the whole rear metal shell is solved effectively. Simulation and actual measurement show that the bandwidth of the antenna is relatively wide, the efficiency is relatively good, and the performances of the antenna at both the high-frequency section and the low-frequency section of mobile communication can well meet the requirement for mobile communication equipment.

Description

technical field [0001] The invention relates to an antenna, in particular to a novel coupling feed antenna for a metal back shell without headroom. Background technique [0002] With the continuous progress of society and the rapid development of science and technology, mobile communication equipment has become an indispensable part of people's office life, and the current mobile communication equipment with metal texture is generally favored by the majority of users, and mobile communication equipment with metal casings has become a mainstream product. Therefore, the all-metal back shell machine has become one of the main research and development directions of mobile communication equipment manufacturers, but the metal back shell of mobile communication equipment has caused the deterioration of the antenna system environment and the decline of antenna performance. [0003] Existing mobile communication devices with metal back shells need to open a slit on the back shell (s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of coupling feed antenna for metal back shells without headroom, so as to solve the problem of poor antenna radiation performance, large space occupation or affecting the overall metal back shell of mobile communication devices with metal back shells. problem of consistency

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