A New Ferroelectric Varactor Shunt Switch for Microwave and Millimeterwave Reconfigurable Circuits

Author(s)

Guru Subramanyam, University of DaytonFollow
Faruque Ahamed, University of Dayton
Rand Biggers, Air Force Research Laboratory
Angela Campbell, Air Force Research Laboratory
Robert Neidhard, Air Force Research Laboratory
Edward Nykiel, Air Force Research Laboratory
Rebecca Cortez, Air Force Research Laboratory
Keith Stamper, Air Force Research Laboratory
Mark Calcatera, Air Force Research Laboratory

Document Type

Article

Publication Date

2-2005

Publication Source

Frequenz Journal

Abstract

This paper presents a ferroelectric varactor shunt switch which can be useful for microwave/millimeterwave switching as well as for the design of reconfigurable circuits. The device operation is based on nonlinear dielectric tunability of a ferroelectric thin-film sandwiched between two metal layers in the parallel plate configuration. A CPW based design allows for MMIC compatible shunt switches with low insertion loss and high isolation. Experimental performance of the varactor shunt switch indicates good switching performance with ~24 dB isolation @41 GHz, and insertion loss below 7 dB up to 45 GHz.

Inclusive pages

37–48

ISBN/ISSN

0016-1136

Publisher

De Gruyter

Volume

59

Peer Reviewed

yes

Issue

1-2

eCommons Citation

Subramanyam, Guru; Ahamed, Faruque; Biggers, Rand; Campbell, Angela; Neidhard, Robert; Nykiel, Edward; Cortez, Rebecca; Stamper, Keith; and Calcatera, Mark, "A New Ferroelectric Varactor Shunt Switch for Microwave and Millimeterwave Reconfigurable Circuits" (2005). Electrical and Computer Engineering Faculty Publications. 36.
https://ecommons.udayton.edu/ece_fac_pub/36