Novel tunable frequency selective meta-surfaces

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

Authors

Colleges, School and Institutes

External organisations

  • School of Electronics

Abstract

Novel tunable low-loss Frequency Selective Meta-Surfaces are presented, operating at around 15GHz. The proposed multi-layer Frequency Selective Meta-Surfaces (FSmS) exhibit significant tuning of their pass-band response with low losses employing bender piezoelectric actuator. The FSmS consist of three closely spaced periodic arrays of sub-wavelength non-resonant elements, namely an array of metallic square loops placed between two arrays of square apertures in metallic sheets, separated by air cavities. The combination of the square loop array and one of the square aperture arrays produces a High Impedance Surface response which is tuned using the piezoelectric actuators. This in turn alters the resonance condition of the complete FSmS structure and thus the central frequency of the pass-band. The structures have been investigated through simulations, achieving a frequency tuning range of 13.3%.

Details

Original languageEnglish
Title of host publication2016 46th European Microwave Conference (EuMC)
Subtitle of host publication"Microwaves Everywhere" Conference Proceedings
Publication statusE-pub ahead of print - 19 Jan 2017
Event46th European Microwave Conference, EuMC 2016 - London, United Kingdom
Duration: 4 Oct 20166 Oct 2016

Conference

Conference46th European Microwave Conference, EuMC 2016
CountryUnited Kingdom
CityLondon
Period4/10/166/10/16

Keywords

  • Frequency selective surfaces, High impedance surfaces, Metasurfaces, Piezoelectric actuators, Tunable