Photoconductively switched antennas for measuring target resonances

Arifur Rahman, David Kralj, Lawrence Carin, Michael R. Melloch, Jerry M. Woodall

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


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.
Original languageEnglish (US)
Pages (from-to)2178-2180
Number of pages3
JournalApplied Physics Letters
Issue number16
StatePublished - Dec 1 1994
Externally publishedYes

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