Two-Arm Archimedean Spiral with Filter-Based Reactive Loading

Z. Zhang, J. T. Bernhard

Research output: Contribution to journalConference articlepeer-review


A new technique to increase the operating bandwidth of a two-arm Archimedean spiral antenna is presented in this paper. Unlike other conventional solutions, including absorbent cavity backing and resistive loading, this method incorporates the concept of low-pass filtering with the two-wire transmission line behavior of the spiral antenna. The reactive loading from the integrated low-pass filter design improves the impedance match at lower frequencies providing a greater bandwidth than the basic spiral design.

Original languageEnglish (US)
Pages (from-to)3677-3680
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
StatePublished - 2006
Externally publishedYes
EventIEEE Antennas and Propagation Society International Symposium, APS 2006 - Albuquerque, NM, United States
Duration: Jul 9 2006Jul 14 2006

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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