Title :
A broadband open-sleeve dipole antenna mounted above a tunable EBG AMC ground plane
Author :
Bray, M.G. ; Werner, D.H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A broadband open-sleeve dipole antenna is mounted above a tunable electromagnetic bandgap (EBG) surface resulting in a low-profile narrowband antenna system that is tunable over an octave bandwidth. The EBG surface is composed of an array of square metallic patches connected via tunable capacitors over a thin PEC backed dielectric substrate. The capacitors tune the resonance of the surface down in frequency resulting in a low-profile antenna system that can be tuned from 1.2 GHz to 2.3 GHz with a relative thickness of only λ/30 to λ/15 at the lower and upper frequency limits respectively.
Keywords :
broadband antennas; dipole antenna arrays; microstrip antenna arrays; photonic crystals; tuning; 1.2 to 2.3 GHz; AMC ground plane; PEC backed dielectric substrate; broadband dipole antenna; electromagnetic bandgap; low-profile antenna; low-profile narrowband antenna; open-sleeve dipole antenna; square metallic patch array; tunable EBG surface; tunable capacitors; Broadband antennas; Capacitors; Dielectric substrates; Dipole antennas; Frequency; Metamaterials; Microstrip antennas; Narrowband; Periodic structures; Reflection;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330385
