A Power Divider with Adjustable Dividing Ratio

Jongsik LIM; Seongmin OH; Jae-Jin KOO; Yongchae JEONG; Dal AHN

doi:10.1093/ietele/e91-c.3.389

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

Regular Section

A Power Divider with Adjustable Dividing Ratio

Jongsik LIM, Seongmin OH, Jae-Jin KOO, Yongchae JEONG, Dal AHN

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Keywords: defected ground structure, DGS, power dividers

JOURNAL RESTRICTED ACCESS

2008 Volume E91.C Issue 3 Pages 389-391

DOI https://doi.org/10.1093/ietele/e91-c.3.389

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Abstract

An unequal Wilkinson power divider with adjustable power dividing ratio is proposed. The proposed power divider consists of rectangular defected ground structure (DGS), isolated island in DGS, and varactor diodes. The impedance of the microstrip line greatly increases due to the DGS, and varies because of the varying capacitance of diodes. The measured unequal dividing ratios vary from 1.97-13.4 and 2.25-10.6 when 2- and 4-diodes are adopted.

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