Title :
Tunable absorber based on electromagnetic band gap surface and a lossy resistance sheet
Author :
Yap, Jyh Haur ; Mias, Christos
Author_Institution :
Sch. of Eng., Warwick Univ., UK
Abstract :
A novel tunable absorber is presented in which a resistive sheet of indium tin oxide (ITO) is placed on top of an electromagnetic band-gap (EBG) surface. The untuned absorber is effective over a narrow frequency band. However, by virtue of tunability it can operate over other frequency bands. Tunability is achieved by employing varactor diodes on the EBG surface.
Keywords :
absorbing media; electromagnetic wave absorption; indium compounds; microwave materials; photonic band gap; tin compounds; varactors; EBG surface; electromagnetic band gap surface; indium tin oxide; lossy resistance sheet; tunable absorber; varactor diodes;
Conference_Titel :
Wideband and Multi-band Antennas and Arrays, 2005. IEE (Ref. No. 2005/11059)
Conference_Location :
IET
Print_ISBN :
0-86341-562-8
