Photoconductively switched antennas for measuring target resonances


Journal Article

Coplanar-strip horn antennas are switched photoconductively to generate picosecond bursts of freely propagating electromagnetic energy with bandwidth covering 15-75 GHz. The antennas are fabricated on GaAs grown by molecular beam epitaxy at low substrate temperatures. These antennas are used to perform transient scattering measurements from slit-coupled circular and coaxial cavities; Prony's method [IEEE Trans. Antennas Propagat. 23, 777 (1975)] is used to extract cavity resonances from the measured late-time scattered signal.

Full Text

Duke Authors

Cited Authors

  • Rahman, A; Kralj, D; Carin, L; Melloch, MR; Woodall, JM

Published Date

  • December 1, 1994

Published In

Volume / Issue

  • 64 / 16

Start / End Page

  • 2178 - 2180

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.111668

Citation Source

  • Scopus