七位数控雷达中频移相器的设计  

The Design of 7 bit digit Radar IF phase shifter

作　　者：姚蛟[1] 

机构地区：[1]中国民航飞行学院绵阳分院空管站,四川绵阳621000

出　　处：《中国西部科技》2013年第2期71-72,84,共3页Science and Technology of West China

摘　　要：移相器是相控阵雷达、卫星通信、移动通信设备中的核心组件,它的工作频带、插入损耗直接影响着这些设备的抗干扰能力和灵敏度,以及系统的重量、体积和成本。本文介绍一种由电压比较器控制的七级T型LC移相网络,七级网络分别移相2.81°、5.62°、11.24°、22.5°、45°、90°、180°。电压比较器输出高电平或者低电平来控制这各级移相网络是否接入,实现信号0°～360°的相移。The phase shifter is the key component of phased array radar, mobile communication and satellite. The phase shifter＇s working frequency band and insertion loss have a great influence on the antijamming and sensitivity of these instruments, as well as their weight, volume and cost. This article introduced a new 7 bit digit phase shifter controlled by the voltage comparator which consist of seven T shape LC network. The phase shift of seven network is 2.81°, 5.62°, 11.24°, 22.5°, 45°, 90°, 180°.It can achieve phase shift 0° to 360°.

关 键 词：移相器 雷达 低插损 电压比较器 

分 类 号：TN958.92[电子电信—信号与信息处理]