Characteristic mode investigation of a reactively loaded electrically small dipole antenna

Matthew W. Young, Jennifer T. Bernhard

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

Abstract

Reactive loading is commonly applied to monopole and dipole antennas to maintain desirable electrical characteristics as the size of the antenna is reduced. Studies relying on parametric techniques have yielded design guidelines for optimal load placement. The use of characteristic mode theory, however, provides an alternative method to understand the currents on the antenna structure and offers insight for optimal load placement. In this work an electrically small dipole antenna is investigated using characteristic mode theory. Although in the electrically small regime the total antenna current is composed primarily of a single characteristic mode, higher order modes contribute strongly to the change in the dominant mode as the loading magnitude is increased. Understanding the effect of higher order characteristic modes in loaded antenna structures provides insight for load placement strategies.

Original languageEnglish (US)
Title of host publication2015 9th European Conference on Antennas and Propagation, EuCAP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788890701856
StatePublished - Aug 27 2015
Event9th European Conference on Antennas and Propagation, EuCAP 2015 - Lisbon, Portugal
Duration: May 13 2015May 17 2015

Publication series

Name2015 9th European Conference on Antennas and Propagation, EuCAP 2015

Other

Other9th European Conference on Antennas and Propagation, EuCAP 2015
CountryPortugal
CityLisbon
Period5/13/155/17/15

Keywords

  • characteristic modes
  • electrically small antenna
  • reactive loading

ASJC Scopus subject areas

  • Instrumentation
  • Radiation
  • Computer Networks and Communications

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  • Cite this

    Young, M. W., & Bernhard, J. T. (2015). Characteristic mode investigation of a reactively loaded electrically small dipole antenna. In 2015 9th European Conference on Antennas and Propagation, EuCAP 2015 [7228684] (2015 9th European Conference on Antennas and Propagation, EuCAP 2015). Institute of Electrical and Electronics Engineers Inc..