Continuously Tunable mm-Wave High Impedance Surface

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Colleges, School and Institutes

Abstract

A continuously tunable High Impedance Surface (HIS) is presented and experimentally demonstrated at approximately 60GHz. An optimized phase-shifting HIS consisting of a periodic surface placed over a ground plane is designed and employed to obtain the desired reflection phase. Tuning of the HIS is achieved by virtue of four compact piezoelectric actuators that produce a displacement between the two layers, when voltage is applied to them. This produces a continuous change of the reflection phase response of the structure. Simulated and experimental results are presented, demonstrating a dynamic surface impedance performance with a measured phase shift of over 200 degrees at about 60GHz

Details

Original languageEnglish
Pages (from-to)1390 - 1393
JournalIEEE Antennas and Wireless Propagation Letters
Volume15
Publication statusPublished - 21 Dec 2015