引言由于某些通信设备的天线设计得不尽合理或使用者不太熟悉安装要求,致使机壳或载体产生了不该有的辐射,破坏了天线的辐射特性和驻波特性,严重影响了通讯效果。这种影响往往随环境而异,难于控制。本文所述天线则从设计上排除了这种弊病,同时展宽了频带,减轻了重量. INTRODUCTION Since the antennas of some communication equipments are not designed properly or the users are not familiar with the installation requirements, the unwanted radiations in the cabinet or carrier are generated, the radiation characteristics and the standing wave characteristics of the antenna are damaged, which seriously affects the Communication effect. This effect often varies with the environment and is difficult to control. The antenna described in this article is designed to eliminate this malady, while broadening the frequency band, reducing the weight.