A binary-switch controlled periodic half-width leaky-wave antenna for fixed frequency beam steering near the endfire region
Date
2019
Authors
Karmokar, D.K.
Bird, T.S.
Guo, Y.J.
Esselle, K.P.
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Conference paper
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Progress in Electromagnetics Research Symposium, 2019, vol.2019-June, pp.1799-1803
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2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring) (17 Jun 2019 - 20 Jun 2019 : Rome, Italy)
Abstract
A leaky-wave antenna (LWA) with fixed-frequency beam scanning capabilities is presented in this paper. The main structure is a half-width microstrip LWA (HW-MLWA), and the direction of the main beam at a fixed operating frequency is controlled by using a group of gap capacitors and binary switches. Different binary switching patterns are applied to change the reactance profile of the radiating structure and hence beam scanning at a fixed frequency is achieved in discrete steps. Results from the full-wave simulation demonstrate that the radiating antenna beam can be steered from 38 to 68 in a discrete step at 7 GHz.
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Copyright 2019 IEEE