Reconfigurable frequency using electromagnetic band gap structures for single band and wideband

摘要: Electromagnetic bandgap (EBG) structures have become a favorable field of research within the microwaves, photonics, and antenna design. The unusual properties this structure such as frequency [1], in phase reflector arrays [2] high impedances surface [3] made unique. Several reports been published to show ability EBG improve performance conventional devices when they are integrated together [4]. Some them improving radiation pattern [5], suppressing waves for planar design [6], reducing mutual coupling [7] steering beam antenna's array [8]. resonance depend on equivalent LC network structure. To obtain specific frequency, many researchers proposed different kind which is normally obtained by modifying shape patches itself [9]. operating tuned varying value total capacitance, C. work tuning introducing element, mean vary inductance value. But, that do not provide much degree freedom selecting band operate types bandwidth it prefer be whether single narrowband multiband or wideband frequency.