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- Kaneoka Shunichi
- Graduate School of Engineering Science, Yokohama National University
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- Iida Wataru
- Graduate School of Engineering Science, Yokohama National University
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- Hashiguchi Hiroshi
- Graduate School of Engineering Science, Yokohama National University
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- Baba Toshihiko
- Graduate School of Engineering Science, Yokohama National University
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- Arai Hiroyuki
- Graduate School of Engineering Science, Yokohama National University
Bibliographic Information
- Other Title
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- Optical High-Gain Leaky-Wave Antenna Using a Waffle-Iron Waveguide
Abstract
<p>This paper presents a comparison of optical leaky-waveguide antennas, i.e., grating waveguide (GWG), waffle waveguide (WWG), and waffle-iron waveguide (WIWG), using both simulations and measurements. WIWG radiates a narrow beam that is tilted by sweeping the incident wavelength, and it possesses a higher antenna gain than GWG and WWG under the same fabrication condition. The reason is due to a slight difference in the effective index along the longitudinal sections, which provides a large aperture size for high antenna gain. We simulate the antenna characteristics and experimentally confirm the high antenna gain.</p>
Journal
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- IEICE Electronics Express
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IEICE Electronics Express 18 (1), 20200411-20200411, 2021-01-10
The Institute of Electronics, Information and Communication Engineers