Broadband frequency and angular response of a sinusoidal bull’s eye antenna
File(s)
Author(s)
Beaskoetxea, U
Navarro-Cía, M
Beruete, M
Type
Journal Article
Abstract
A thorough experimental study of the frequency and beaming angle response of a metallic leaky-wave bull's eye antenna working at 77 GHz with a sinusoidally corrugated profile is presented. The beam scanning property of these antennas as frequency is varied is experimentally demonstrated and corroborated through theoretical and numerical results. From the experimental results the dispersion diagram of the n = −1 and n = −2 space harmonics is extracted, and the operation at different frequency regimes is identified and discussed. In order to show the contribution of each half of the antenna, numerical examples of the near-field behavior are also displayed. Overall, experimental results are in good qualitative and quantitative agreement with theoretical and numerical calculations. Finally, an analysis of the beamwidth as a function of frequency is performed, showing that it can achieve values below 1.5° in a fractional bandwidth of 4% around the operation frequency, which is an interesting frequency-stable broadside radiation.
Date Issued
2016-05-25
Date Acceptance
2016-04-14
Citation
Journal of Physics D - Applied Physics, 2016, 49
ISSN
0022-3727
Publisher
IOP Publishing
Journal / Book Title
Journal of Physics D - Applied Physics
Volume
49
Copyright Statement
© 2016 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Physics D: Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://dx.doi.org/10.1088/0022-3727/49/26/265103
Subjects
Applied Physics
02 Physical Sciences
09 Engineering
Notes
journal_title: Journal of Physics D: Applied Physics article_type: paper article_title: Broadband frequency and angular response of a sinusoidal bull’s eye antenna copyright_information: © 2016 IOP Publishing Ltd date_received: 2016-01-11 date_accepted: 2016-04-14 date_epub: 2016-05-25
Publication Status
Published
Article Number
265103