Title :
Improvement of microstrip patch antenna radiation patterns
Author :
Vaughan, Mark J. ; Hur, Katerina Y. ; Compton, Richard C.
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
fDate :
6/1/1994 12:00:00 AM
Abstract :
Microstrip patch antennas typically have radiation patterns containing unwanted sidelobes or local minima caused by surface waves, especially when fabricated on high dielectric-constant substrates. The paper shows that removal of the substrate beneath the patch can greatly improve the pattern. A variation of this technique, compatible with monolithic fabrication, is applied to fabrication of a patch on GaAs and shows similar pattern improvement
Keywords :
antenna radiation patterns; gallium arsenide; microstrip antennas; substrates; GaAs; high dielectric-constant substrates; local minima; microstrip patch antenna radiation patterns; monolithic fabrication; sidelobes; surface waves; Antenna radiation patterns; Antennas and propagation; Dielectric substrates; Fabrication; Gallium arsenide; Microstrip antennas; Patch antennas; Rough surfaces; Surface roughness; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
