A compact Yagi-Uda antenna with enhanced bandwidth

Diana Arceo, Constantine Balanis

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

A three-element compact Yagi-Uda antenna is proposed that maintains a high absolute gain and low VSWR over a 10% fractional bandwidth with an element spacing of 0.053λ. The proposed Yagi-Uda antenna uses a director and reflector to create a dual resonance and approach superdirectivity at each resonant frequency. By adjusting the reflector and director's resonant frequency, the gain and bandwidth of the antenna can be maximized. The driven element has one folded arm to increase the impedance of the antenna. The reflector and director elements are bowtie designs to increase the bandwidth. The measured impedance and gain agrees well with the computational model.

Original languageEnglish (US)
Article number5765545
Pages (from-to)442-445
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume10
DOIs
StatePublished - Jun 3 2011

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Keywords

  • Antenna arrays
  • Yagi antennas
  • compact antennas
  • folded antennas
  • superdirectivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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