Chua Mem-Components for Adaptive RF Metamaterials

Autor: Georgiou, J., Kossifos, K. M., Jaafar, A. H., Kemp, N. T., Antoniades, M. A.

Chua's mem-components are ideal for creating adaptive metasurfaces for manipulating EM waves given that they hold their state without external biases. In this paper, we propose a generic adaptive reactive element that is in fact a memcapacitor/memind

Externí odkaz: http://arxiv.org/abs/1907.11137

An Optically-Programmable Absorbing Metasurface

Autor: Kossifos, K. M., Antoniades, Marco A., Georgiou, Julius, Jaafar, A. H., Kemp, N. T.

Publikováno v: ISCAS
2018 IEEE International Symposium on Circuits and Systems (ISCAS)

A tunable metasurface absorber is presented in this work using an optically-programmable capacitor as the tuning element. The tuning element does not employ conventional semiconductor technologies to operate but rather a bases its tuning by changing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55c608af9427f6583ca7235a4251eca2
https://doi.org/10.1109/iscas.2018.8351874

Analysis of an off-broadside zero beam-squinting leaky-wave antenna using metamaterials

Autor: Kossifos, K. M., Antoniades, Marcos A.

Publikováno v: Proceedings of the 18th Mediterranean Electrotechnical Conference: Intelligent and Efficient Technologies and Services for the Citizen, MELECON 2016

It is shown that zero beam-squinting can be achieved in both series fed antenna arrays and leaky-wave antennas by employing two parallel-connected metamaterial transmission lines with equal positive group delays, but with opposite phase velocities. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff282404fdb2a22064787fc671ff0fa6
http://gnosis.library.ucy.ac.cy/handle/7/43834