Title :
Aperture coupled microstrip patch antenna with thick ground plane in millimetre waves
Author :
Lafond, O. ; Himdi, M. ; Daniel, J.P.
Author_Institution :
Lab. Antennes et Reseaux, Rennes I Univ., France
fDate :
8/19/1999 12:00:00 AM
Abstract :
The finite thickness of the ground plane is taken into account in the cavity model to analyse some aperture coupled microstrip patch antennas at millimetre-wave frequencies (60 GHz). The thickness has a strong effect on impedance matching at high frequencies owing to the ratio between the thickness and the wavelength, which increases with frequency. The calculated results are compared to those obtained by experiment for several antennas with different input impedances due to different slot lengths. Close agreement is found between the calculated and experimental results
Keywords :
antenna theory; electric impedance; impedance matching; microstrip antennas; millimetre wave antennas; 60 GHz; EHF; MM-wave antennas; aperture coupled patch antenna; cavity model; ground plane thickness; impedance matching; input impedances; microstrip patch antenna; millimetre-wave frequencies; slot lengths; thick ground plane;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990970
