摘要
为扩展频率下限,利用高频电磁仿真软件ADS(Advanced Design System)设计实现一种应用于零频抑制电路的反射型线性模拟移相器。利用分支线型3 dB定向耦合器和变容二极管实现移相,移相范围达到211°,中心频率为3.3536 GHz,线性度优于±2.6%,最大插入损耗为2.209 dB,平坦度为±0.45 dB。仿真和实际测试结果表明该方法能提高设计精度,减少研制周期,具有实用性。
A reflective linear analog phase shifter was designed by the high-frequency electromagnetic simulation software ADS in order to extend the lower frequency limit.It ’ s applied to the zero-frequency suppression circuit.Phase shifting was realized with branch line type 3 dB directional coupler and varactor diode.Phase shifting range extende up to 211°,center frequency is 3.353 6 GHz,linearity is better than ±2.6%,maximum insertion loss is 2.209 dB,flatness is ±0.45 dB.The simulation and actual test results show that the method can improve the design accuracy,reduce the development cycle,and has practicality.
作者
畅彦祥
刘祖深
赵润年
CHANG Yanxiang;LIU Zushen;ZHAO Runnian(National Key Laboratory of Electronic Testing Technology,North University of China,Taiyuan 030051,China;Electronic measurement technology key laboratory of Anhui Province,Bengbu Anhui 233010,China)
出处
《电子器件》
CAS
北大核心
2019年第3期617-621,共5页
Chinese Journal of Electron Devices
基金
国家科技重大专项03专项基金项目(2017ZX03001020)
中国电科技术创新基金项目
关键词
射频电路
模拟移相
ADS
移相范围
线性度
插入损耗
平坦度
radio frequency circuit
analog phase shift
ADS
phase shift range
linearity
insertion loss
flatness
