A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space

Yunjie Geng; Junhong Wang; Zheng Li; Yujian Li; Meie Chen; Zhan Zhang

doi:10.1109/ACCESS.2019.2926212

IEEE Access (Jan 2019)

A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space

Yunjie Geng,
Junhong Wang,
Zheng Li,
Yujian Li,
Meie Chen,
Zhan Zhang

Affiliations

Yunjie Geng: ORCiD; Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China
Junhong Wang: Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China
Zheng Li: Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China
Yujian Li: Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China
Meie Chen: Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China
Zhan Zhang: Key Laboratory of All Optical Network and Advanced Telecommunication Network of MOE, Beijing Jiaotong University, Beijing, China

DOI: https://doi.org/10.1109/ACCESS.2019.2926212
Journal volume & issue: Vol. 7
pp. 86367 – 86373

Abstract

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A substrate integrated waveguide (SIW) leaky-wave antenna (LWA) array with beam-formed radiation pattern is investigated in this paper. The array is composed of two LWA elements with different parameters of slots. For each LWA, the period of slots is selected first within the scope of only n = -1 space harmonic radiation to ensure the beam radiate in the desired direction. Then, the length of the slots is tapered according to the binomial aperture distribution to get the wide beam. Finally, the width of the slots is adjusted to get the desired radiation field strength. By superposing two wide beams from two elements in a weighting way, a cosecant-squared-like beam-formed radiation pattern is realized, which is preferable for the application of uniform radio wave coverage in a long straight confined space. The array is fabricated and measured, and the measured results are consistent with the simulated results.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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