High-gain wideband leaky-wave antenna excited by Bowtie element

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • S. W. Qu
  • Jia-Lin Li
  • Quan Xue

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)2469-2474
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume56
Issue number8 II
Publication statusPublished - 2008

Abstract

A leaky-wave antenna with wideband and high-gain characteristics, excited by a rhombic bowtie element with round corners, is derived from a rectangular resonant cavity operating in TM111 mode. In the design procedure, a few particular techniques are used to enhance the antenna impedance bandwidth and gain, such as utilization of bowtie exciter and differentially-fed mechanism. The antenna is fed by a coaxial line, and a transition from microstrip line to parallel strip line (PSL) is utilized to achieve a good differentially-fed structure. With a tradeoff between large impedance bandwidth and high gain, the antenna presents an impedance bandwidth of 41.2% for ≤ 2, a gain of 14 dBi and stable unidirectional radiation patterns. For practical applications, the parametric studies and design guideline are given in the end. © 2008 IEEE.

Research Area(s)

  • Differentially-fed mechanism, Leaky-wave antennas, Unidirectional antennas, Wideband antennas

Citation Format(s)

High-gain wideband leaky-wave antenna excited by Bowtie element. / Qu, S. W.; Li, Jia-Lin; Xue, Quan.

In: IEEE Transactions on Antennas and Propagation, Vol. 56, No. 8 II, 2008, p. 2469-2474.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review