Quasi microstrip leaky-wave antenna with a two-dimensional beam-scanning capability

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

20 Scopus Citations
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Author(s)

  • Yuanxin Li
  • Quan Xue
  • Edward Kai-Ning Yung
  • Yunliang Long

Detail(s)

Original languageEnglish
Pages (from-to)347-354
Journal / PublicationIEEE Transactions on Antennas and Propagation
Volume57
Issue number2
Publication statusPublished - 2009

Abstract

A quasi microstrip leaky-wave antenna (QMLWA) with a two-dimensional (2-D) beam-scanning capability is presented in this paper. QMLWA consists of two half-width microstrip leaky-wave antennas with a phase-shifter. This new type of microstrip leaky-wave antenna has the advantages of reducing size, 2-D beam-scanning and suppressing back lobes. The main lobe scanning in H-plane (y - z plane) is achieved through varying the operating frequency. When the operating frequency increases from 4.4-6 GHz, the main lobe scans from 84° to 26° in H-plane continuously. The main lobe steers in quasi-E-plane with varying the phase difference between two half-width microstrip leaky-wave antennas. The lobe scans from 78° to 103° in quasi-E-plane at 5.4 GHz. The experimental results show this short QMLWA (about 2 wavelengths) leaks power effectively. The back lobe in H-plane of QMLWA is suppressed 13 dB as compared with the conventional whole width MLWA at 5.4 GHz as example. The H-plane radiation characteristics of QMLWA are mainly determined by the width s of half-width MLWA and the distance D between two half-width MLWA together. This size-reduced QMLWA is useful in the automotive radar system and air traffic control. © 2009 IEEE.

Research Area(s)

  • Half-width, Microstrip leaky-wave antenna, Suppressing back lobe, Two-dimensional (2-D) beam-scanning

Citation Format(s)

Quasi microstrip leaky-wave antenna with a two-dimensional beam-scanning capability. / Li, Yuanxin; Xue, Quan; Yung, Edward Kai-Ning; Long, Yunliang.

In: IEEE Transactions on Antennas and Propagation, Vol. 57, No. 2, 2009, p. 347-354.

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