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KTN ferroelectrics-based microwave tunable phase shifter

✍ Scribed by Ling Yan Zhang; Vincent Laur; Arnaud Pothier; Quentin Simon; Paul Laurent; Noham Martin; Maryline Guilloux-Viry; Gérard Tanné

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

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✦ Synopsis

Abstract

This letter presents the design, fabrication, and measurement of a KTa1‐xNb~x~O~3~‐ (KTN‐) based phase shifter. This loaded‐line phase shifter has insertion losses of about 7.36 dB at zero bias and 10 GHz, a return loss greater than 12 dB over the frequency range 1–16 GHz and a relatively high differential phase shift of about 88° for a 120 V DC bias at 10 GHz. The enhancement of performances observed by comparison with those presented by the KTN‐based phase shifters positions KTN materials as a serious alternative to Ba1‐x__Sr~x~__TiO~3~ ones for microwave agility applications. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1148–1150, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25104

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