Novel continuous beam scanning leaky-wave antennas using 1-D mushroom structure

Debabrata K. Karmokar, Shu-Lin Chen, Y. Jay Guo

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

Novel continuous backward-to-forward beam-scanning leaky-wave antennas (LWAs) are designed using a 1-D mushroom structure. An effective method is proposed to suppress the bandgap of a mushroom structure. A smooth transition between the backward and forward leaky modes is achievable by choosing a suitable value of the via inductance, and hence the antenna has design flexibility. The study starts from an equivalent circuit of a unit cell and is verified through simulation and measurement. The measured results confirm a continuous 126° beam scan, starting from -60°, with less than 3 dB gain variation. Moreover, the measured 3dB gain bandwidth is over 58%, which is better than most of the reported LWAs.

Original languageEnglish
Title of host publication2018 International Symposium on Antennas and Propagation (ISAP)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages2
ISBN (Electronic)9788957083048, 9788957082973
ISBN (Print)9781538653890
Publication statusPublished - 2018
Externally publishedYes
Event2018 International Symposium on Antennas and Propagation, ISAP 2018 - Busan, Korea, Republic of
Duration: 23 Oct 201826 Oct 2018

Conference

Conference2018 International Symposium on Antennas and Propagation, ISAP 2018
CountryKorea, Republic of
CityBusan
Period23/10/1826/10/18

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