Design and experimental verification of a 3D magnetic EZ antenna at 300 MHz

Richard W. Ziolkowski, Chia Ching Lin, Jean A. Nielsen, Minas H. Tanielian, Christopher L. Holloway

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Several variations of a 300-MHz version of the electrically small coax-fed three-dimensional (3D) magnetic EZ antenna were designed and tested. The final version of this low-profile antenna had an electrical size that was ka ̃ 0.437 at 300.96 MHz. Nearly complete matching to the 50-Ω source and high overall efficiency (nearly 100%) were achieved. The measured fractional bandwidth was approximately 1.66%. The numerically predicted and the measured results were in good agreement. Comparisons to similar-sized loop antennas that were matched to the source with both custom-made and commercially available, general purpose external matching networks confirm the performance enhancements achieved with this metamaterial-inspired, near-field resonant parasitic antenna.

Original languageEnglish (US)
Article number5200368
Pages (from-to)989-993
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
StatePublished - 2009


  • Antenna theory
  • Electrically small antennas
  • Metamaterials
  • Parasitics
  • Quality factors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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