Quasi microstrip leaky-wave antenna with a two-dimensional beam-scanning capability
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 347-354 |
Journal / Publication | IEEE Transactions on Antennas and Propagation |
Volume | 57 |
Issue number | 2 |
Publication status | Published - 2009 |
Link(s)
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 et al.
In: IEEE Transactions on Antennas and Propagation, Vol. 57, No. 2, 2009, p. 347-354.
In: IEEE Transactions on Antennas and Propagation, Vol. 57, No. 2, 2009, p. 347-354.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review