Electrically Small, Broadside Radiating Huygens Source Antenna Augmented with Internal Non-Foster Elements to Increase Its Bandwidth

Ming Chun Tang, Ting Shi, Richard W. Ziolkowski

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

A broadside radiating, linearly polarized, electrically small Huygens source antenna system that has a large impedance bandwidth is reported. The bandwidth performance is facilitated by embedding non-Foster components into the near-field resonant parasitic elements of this metamaterial-inspired antenna. High-quality and stable radiation performance characteristics are achieved over the entire operational bandwidth. When the ideal non-Foster components are introduced, the simulated impedance bandwidth witnesses approximately a 17-fold enhancement over the passive case. Within this-10-dB bandwidth, its maximum realized gain, radiation efficiency, and front-To-back ratio (FTBR) are, respectively, 4.00 dB, 88%, and 26.95 dB. When the anticipated actual negative impedance convertor circuits are incorporated, the impedance bandwidth still sustains more than a 10-fold enhancement. The peak realized gain, radiation efficiency, and FTBR values are, respectively, 3.74 dB, 80%, and 28.01 dB, which are very comparable to the ideal values.

Original languageEnglish (US)
Article number7544602
Pages (from-to)712-715
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume16
DOIs
StatePublished - Jan 1 2017

Keywords

  • Directivity
  • Huygens source antenna
  • electrically small antennas (ESAs)
  • front-To-back ratio (FTBR)
  • impedance bandwidth
  • non-Foster elements

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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