论文信息 - A C-band wideband 360° analog phase shifter design

A C-band wideband 360° analog phase shifter design

This article proposes a reflection-type wideband 360° analogue phase shifter in microstrip form. It employs a 3-dB branch-line coupler circuit to achieve a wideband operation and two varactor-diode circuits to achieve 360° phase shift. Formulas are derived to optimize the dimensions of the microstrip lines in the coupler and the varactor-diode circuits for wideband operation and minimizing frequency dependency of the output phase. Experimental results show that the design has a 360° phase-shift range and 1 dB insertion loss, with a 500-MHz operation bandwidth at the center frequency of 6.5 GHz. ©2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 355–359, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24938

T. I. Yuk | S. W. Cheung | M. X. Xiao

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