Title :
Switchable electromagnetic metamaterial reflector/absorber
Author :
Min-Yeong Yoo ; Sungjoon Lim
Author_Institution :
Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea
Abstract :
In this paper, we present a novel electromagnetic metamaterial which is able to electronically switch a reflector and absorber. For the absorbing mode, a split ring resonator is employed as an electric LC resonator. The reflector mode is achieved by switching the current path off. The performance is successfully demonstrated both by a full-wave simulation and measurement. At 10 GHz, high absorption is obtained when the switch is the on-state, while the perfect reflection is obtained when the switch on the off-state.
Keywords :
LC circuits; electromagnetic devices; electromagnetic metamaterials; electromagnetic wave absorption; electromagnetic wave reflection; magnetic circuits; microwave circuits; resonators; current switching; electric LC resonator; electronic switching; frequency 10 GHz; full-wave simulation; split ring resonator; switchable electromagnetic metamaterial reflector-absorber; DH-HEMTs; Metamaterial; absorber; reflector; split ring resonator (SRR); switchable;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421626
