Title :
Tapered slot antenna using photonic bandgap structure to reduce substrate effects
Author :
Lim, T.G. ; Ang, H.N. ; Robertson, I.D. ; Weiss, B.L.
Author_Institution :
Sch. of Electron. & Phys. Sci., Univ. of Surrey, Guildford, UK
fDate :
3/31/2005 12:00:00 AM
Abstract :
A simple and novel method is proposed to overcome the main beam splitting of a tapered slot antenna fabricated on a thick, high dielectric constant substrate. It employs a photonic bandgap structure comprising slots on the ground plane and conductor strips on the back of the substrate. Measured results at 35 GHz show a dramatic improvement in the radiation pattern and a measured front-to-back ratio of approximately 20 dB for both the H- and E-planes.
Keywords :
antenna radiation patterns; photonic band gap; slot antennas; substrates; 35 GHz; beam splitting; conductor strips; photonic bandgap structure; radiation pattern; substrate effects; tapered slot antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20050099
