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A monolithic distributed phase shifter based on right-handed nonlinear transmission lines at 30 GHz 被引量:1
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作者 黄杰 赵倩 +2 位作者 杨浩 董军荣 张海英 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第12期451-455,共5页
The epitaxial material, device structure, and corresponding equivalent large signal circuit model of GaAs planar Schottky varactor diode are successfully developed to design and fabricate a monolithic phase shifter, w... The epitaxial material, device structure, and corresponding equivalent large signal circuit model of GaAs planar Schottky varactor diode are successfully developed to design and fabricate a monolithic phase shifter, which is based on right-handed nonlinear transmission lines and consists of a coplanar waveguide transmission line and periodically distributed GaAs planar Schottky varactor diode. The distributed-Schottky transmission-line-type phase shifter at a bias voltage greater than 1.5 V presents a continuous 0°–360° differential phase shift over a frequency range from 0 to 33 GHz. It is demonstrated that the minimum insertion loss is about 0.5 dB and that the return loss is less than-10 dB over the frequency band of 0–33 GHz at a reverse bias voltage less than 4.5 V. These excellent characteristics, such as broad differential phase shift, low insertion loss, and return loss, indicate that the proposed phase shifter can entirely be integrated into a phased array radar circuit. 展开更多
关键词 GaAs planar Schottky diode phase shifter right-handed nonlinear transmission lines monolithic microwave integrated circuit
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