摘要
该文介绍了宽频带360°模拟移相器的设计理论。针对移相器的线性调相、平衡插入损耗波动、宽频带等进行了详细的探讨,且推导出确定移相器频带宽度的目标函数。用CAD方法迅速而准确地优化各网络设计参量。采用微波集成电路工艺制作的L波段模拟移相器在1.3～2.1GHz范围内可获得360°连续可变相移,最大调相电压18V,中心频率线性度优于±2.5％,插入损耗波动小于3dB。综合性能均优于国内报道的移相器。
A 360?broad-band analog phase shifter is designed by means of CAD. Linear phase-shift, balancing insertion loss and expanding bandwidth of phase shifter are analyzed in detail. The objective function about phase shifter's bandwidth is also deduced. The analog phase shifter which uses hyperabrupt varactor chips is fabricated with MIC technology. In the frequency range of 1.3-2.1GHz, continuous variable phase-shifter up to 360° and linear deviation of less than ±2.5% can be obtained. Its insertion loss varies less than 3dB. Comparing with reported phase shifters, its performances are excellent.
出处
《电子与信息学报》
EI
CSCD
北大核心
2001年第3期292-299,共8页
Journal of Electronics & Information Technology
基金
国家自然科学基金(69876014)
博士点基金(97018311)
关键词
宽频带
移相器
L波段
模拟信号
设计
Insertion loss fluctuation, Linear phase-shift, Hyperabrupt varactor
