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Ferroelectric tunable microstrip Lange coupler for K-band applications

Publication Type

Conference Paper

Authors

Subramanyam, G., F.A. Miranda, R.R. Romanofksy, F.W. Van Keuls, C.L. Canedy, S. Aggarwal, T. Venkatesan, Ramamoorthy Ramesh

Abstract

We report on the modeled and experimentally verified performance of a gold/Ba0.6Sr0.4TiO3 (BSTO) ferroelectric/magnesium oxide (MgO) two-layered microstrip electrically tunable Lange coupler. Tight coupling of 3 dB or higher was obtained over a frequency range of 14 to 19 GHz. The coupled power level was electrically tunable from -11.5 to -5.5 dB at 20 GHz with an applied dc electric field of 1.6 V/μm. This work demonstrates another advantageous application for ferroelectric thin-films in passive microwave components at K-band frequencies.

Journal

IEEE MTT-S International Microwave Symposium Digest

Volume

Year of Publication

2000

ISSN

0149645X

Notes

cited By 10

Research Areas

Ramesh Lab