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Switched beam patch array antenna using SPDT GaN HEMT switches

Abstract : In this article, a single-fed 4-panel 4 x 1 patch array antenna operating at 2.43 GHz with switched beam capability is proposed. The design allows the beam to be switched between 4 discrete directions giving 360 degrees coverage. The antenna beam is switched over the azimuth plane for phi=0 degrees, phi=90 degrees, phi=180 degrees, and phi=270 degrees. The beam control is achieved using GaN-based HEMT SPDT switches. Only 3 SPDT switches are integrated directly into the structure, allowing its nature to be electrically controlled over the desired 4 directions. Simulated and measured reflection coefficients and radiation patterns for the 4 cases are presented and discussed, showing good agreement. The antenna gain is around 3.8 dB including switches losses at 2.43 GHz.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01534210
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, June 7, 2017 - 1:39:42 PM
Last modification on : Tuesday, October 6, 2020 - 3:09:49 AM

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Abdelaziz Hamdoun, Mohamed Himdi, Olivier Lafond, Langis Roy. Switched beam patch array antenna using SPDT GaN HEMT switches. Microwave and Optical Technology Letters, Wiley, 2017, 59 (7), pp.1558--1562. ⟨10.1002/mop.30584⟩. ⟨hal-01534210⟩

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