Title :
An ultrawideband photonic crystal antenna
Author :
Agi, K. ; Mojahedi, M. ; Malloy, K.J. ; Schamiloglu, E.
Author_Institution :
Center for High Technol. Mater., New Mexico Univ., Albuquerque, NM, USA
fDate :
June 29 1997-July 2 1997
Abstract :
We present the development of a novel ultrawideband antenna structure that uses photonic crystals as a substrate to reflect the energy normally trapped within a substrate into free space. Photonic crystals are three-dimensional periodic structures that exhibit spatial three-dimensional filter properties. In order to achieve an ultrawideband photonic crystal, two photonic crystals with different periodicities are stacked in tandem. The stop band of the photonic crystal is used as a distributed reflector of a short pulse that is generated at the surface of the crystal by photoconductively switched planar antennas.
Keywords :
electromagnetic pulse; photoconducting switches; photonic band gap; pulsed power technology; reflector antennas; substrates; distributed reflector; energy reflection; photoconductively switched planar antennas; short pulse; spatial three-dimensional filter properties; stop band; substrate; three-dimensional periodic structures; ultrawideband photonic crystal antenna; Antennas and propagation; Bandwidth; Dielectric substrates; Frequency; Optical pulse generation; Personal communication networks; Photoconductivity; Photonic crystals; Ultra wideband antennas; Ultra wideband technology;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.679454
