The design method, implementation and testing results of a digital vector modulator are described in this paper. The proposed digital vector modulator is combined the digital technology and analog technology, implemented by the microwave hybrid integrated technology, and has the features of easy to adjust, good linearity with the control voltage and voltage transmission coefficient. The phase error change is less than ±1.5° and I/Q orthogonality is less than ±2° when the attenuation decrement change is 30 dB in VHF frequency range.
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牛伟,方鑫,叶峰,欧亚.一种数字矢量调制器设计与实现[J].压电与声光,2014,36(2):190-193. NIU Wei, FANG Xin, YE Feng, OU Ya. Design and Implementation of a Digital Vector Modulator[J]. PIEZOELECTRICS AND ACOUSTOOPTICS