Title :
Increasing the bandwidth of a microstrip antenna by proximity coupling
Author :
Pozar, David M. ; Kaufman, Brett
Author_Institution :
University of Massachusetts, Department of Electrical & Computer Engineering, Amherst, USA
Abstract :
The letter presents experimental results for a proximity-coupled microstrip patch antenna capable of 13% bandwidth. The impedance match (VSWR ¿ 2), copolarised radiation patterns and crosspolarised radiation were measured over this bandwidth to confirm operation. The construction is quite simple, consisting of a microstrip feedline on a substrate proximity-coupled to a rectangular microstrip patch on a covering superstrate; a small open-circuit tuning stub is connected in shunt with the feed line.
Keywords :
antenna radiation patterns; impedance matching; microstrip antennas; bandwidth; copolarised radiation patterns; crosspolarised radiation; impedance match; microstrip antenna; microstrip feedline; open-circuit tuning stub; patch antenna; proximity coupling; rectangular microstrip patch;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870270
