Abstract
In this article, a novel variable power divider based on varactor diodes is introduced and described in detail.Its main components are 3-dB couplers, varactor diodes, and lumped elements. The proposed power divider is initially studied using the even- and odd-mode techniques. Then, based on the derived equations and as an experimental verification, the proposed varactor-based power divider operating at the center frequency of 2.5 GHz is fabricated and its performance is measured. It is shown that the power divider offers a maximum insertion loss of about 1.8 dB with a minimum dynamic range of over 6 dB in the frequency range from 2.3 to 2.7 GHz. The results are discussed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1684–1686, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27603
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