Analysis of a tunable electrically small antenna

B. Esser, S. Beeson, J. Dickens, J. Mankowski, A. Neuber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A tunable, metamaterial-inspired, electrically small antenna topology is evaluated for a possible future use as the principle radiating element in a mobile Ionospheric Heating (MIH) system the RF source signal is fed via a 50 Ω coaxial cable into a small semi-loop antenna (SLA). This inductively couples to a capacitively loaded loop (CLL) providing a natural 50 Ω match to the source the resonant frequency of the antenna can be adjusted by varying the capacitance of the CLL via inserting a large permittivity dielectric. A simplified circuit model is used to show that the resonant frequency can be tuned between 40-100 MHz. Also, the maximum power handling capabilities achievable with this antenna topology at frequencies relevant to ionospheric heating (∼ 10 MHz and below) are estimated.

Original languageEnglish
Title of host publication2015 IEEE Pulsed Power Conference, PPC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479984039
DOIs
StatePublished - Oct 12 2015
EventIEEE Pulsed Power Conference, PPC 2015 - Austin, United States
Duration: May 31 2015Jun 4 2015

Publication series

NameDigest of Technical Papers-IEEE International Pulsed Power Conference
Volume2015-October

Conference

ConferenceIEEE Pulsed Power Conference, PPC 2015
CountryUnited States
CityAustin
Period05/31/1506/4/15

Keywords

  • Antennas
  • Capacitance
  • Computational modeling
  • Dielectric losses
  • Integrated circuit modeling
  • Resonant frequency

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    Esser, B., Beeson, S., Dickens, J., Mankowski, J., & Neuber, A. (2015). Analysis of a tunable electrically small antenna. In 2015 IEEE Pulsed Power Conference, PPC 2015 [7296897] (Digest of Technical Papers-IEEE International Pulsed Power Conference; Vol. 2015-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PPC.2015.7296897