Title :
Microstrip patch antennas on thick substrates
Author :
Dahele, J.S. ; Hall, P.S. ; Haskins, P.M.
Author_Institution :
R. Milit. Coll. of Sci., Shrivenham, UK
Abstract :
The authors show that a thick patch with an annular gap matching capacitor is an optimum element from a practical design point of view giving wide bandwidth operation albeit at the expense of poor cross polarisation. Feed inductance and radiation pattern effects are investigated and a new patch equivalent circuit is formulated that gives significantly improved results over the existing lumped element model
Keywords :
antenna radiation patterns; capacitors; electromagnetic wave polarisation; equivalent circuits; microstrip antennas; annular gap matching capacitor; cross polarisation; microstrip patch antennas; patch equivalent circuit; radiation pattern; thick substrates;
Conference_Titel :
Antennas and Propagation, 1989. ICAP 89., Sixth International Conference on (Conf. Publ. No.301)
