Electro-Mechanically Tunable Meta-Surfaces for Beam-Steered Antennas from mm-Wave to THz

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

Authors

Colleges, School and Institutes

External organisations

  • Department of Electronic Electrical and Systems Engineering

Abstract

Electro-mechanically tunable meta-surfaces are presented for high gain, beam steerable Leaky-Wave Antennas (LWAs) at 37 GHz and 280 GHz bands. The proposed metasurfaces are: a tunable High Impedance Surface (HIS) in case of 37 GHz LWA, and tunable Partially Reflective Surface (PRS) in case of 280 GHz LWA. The proposed metasurfaces serve as a phase shifter in the beam steering antenna. The required phase shift is achieved by varying the mechanical separation between the HIS/PRS periodic array and ground layer using a piezoelectric actuator (PEA). The presented phase shifting technique offers an extremely low loss solution for antenna beam steering at mm-wave frequencies. The designed antenna at the selected frequency bands may find applications in broadband mobile communications in 5G and beyond. The presented antenna yields a wide S11 bandwidth (BW), high gain and wide beam scanning range as required for broadband mobile applications.

Details

Original languageEnglish
Title of host publication14th European Conference on Antennas and Propagation, EuCAP 2020
Publication statusPublished - Mar 2020
Event14th European Conference on Antennas and Propagation, EuCAP 2020 - Copenhagen, Denmark
Duration: 15 Mar 202020 Mar 2020

Publication series

Name14th European Conference on Antennas and Propagation, EuCAP 2020

Conference

Conference14th European Conference on Antennas and Propagation, EuCAP 2020
CountryDenmark
CityCopenhagen
Period15/03/2020/03/20

Keywords

  • leaky-wave antenna, Metasurface, millimetre-wave antenna, piezo-electric actuator, tuneable metamaterial