宽频带L波段360模拟信号移相器的设计
Design of Broad-Band L Band 360 Analog Signal Phase Shifter
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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。Abstract: 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.
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J. Nees, Nocontact electro-optic sampling with a GaAs injection laser, Electron. Lett., 1986,22(17), 918-919.[2]R.V. Garver, 360 varactor linear phase modulator, IEEE Trans, on MTT, 1969, MTT-17(3),137-147.[3]E.C. Niehenke, V. V. Dimarco, A. Friedberg, Linear analog hyperabrupt varactor diode phase shifters, 1985 IEEE MTT-S Digest, 657-660.[4]D.E. Dawson, A. L. Conti, S. H Lee, G. F. Shade, An analog x-band phase shifter, IEEE 1984Microwave and Millimeter-Wave Monolithic Circuits Symposium, Digest of Papers, 1984, 6-10.[5]张汉基,带宽24-60MHz移相360压控移相器,无线电通信技术,1989,15(4),33-36.[6]田小建,孙伟等,模拟电调相器线性化方法,吉林大学自然科学学报,1994,(7),370-372.[7]张湘俊,陈忠嘉,孙忆宁,360线性移相器,微波学报,1991,(3),55-59.[8]清华大学编写组,微带电路,北京,人民邮电出版社,1976年9月,第八章. -
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