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Compact, tunable Wilkinson power divider using tunable synthetic transmission line

✍ Scribed by Wenjia Tang; Ji-Ho Ryu; Hongjoon Kim

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
286 KB
Volume
52
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A very compact and frequency tunable Wilkinson power divider is suggested and demonstrated for the first time.By replacing λ/4 section lines in a conventional Wilkinson power divider with varactor tunable, lumped‐element synthetic transmission lines, dramatical size reduction and frequency tunability has been achieved. The prototype circuit fabricated shows excellent performance. For tunable frequencies from 0.71 to 0.99 GHz, the insertion loss is less than 3.52 dB, whereas the return loss and isolation are greater than 20 dB. Yet, the size of this voltage controllable Wilkinson power divider is only 4 mm by 8 mm, which occupies less than 3% area of original Wilkinson power divider structure. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1434–1436, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25181

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