On the Enhancement of Scanning and Gain Flatness of Leaky-Wave Gap-Waveguide Antennas with Glide Symmetry

Lei Wang, Qiang Cheng, Wen Xuan Tang, Xiaoxing Yin, Oscar Quevedo-Teruel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The gain of leaky-wave antennas typically has a frequency dependence, since at different frequencies use different amount of the available aperture. The frequencies variations of the gain are more significant when the bandwidth of operation is wider. Here, we propose a leaky-wave antenna in groove gap-waveguide technology with glide-symmetric leaky pins to improve the gain flatness and scanning angle. To validate this technique, one antenna is designed following this technique. Its realized gain is improved more than 3.0 dB in the frequency band from 8.5 GHz to 14.5 GHz. The 3-dB realized gain bandwidth is enhanced from 4 GHz (36%) to 6.2 GHz (55%), with a enhanced scanning angle from 18.0° to 32.5°.
Original languageEnglish
Title of host publication2019 13th European Conference on Antennas and Propagation (EuCAP)
PublisherIEEE
ISBN (Electronic)9788890701887
Publication statusPublished - 20 Jun 2019

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