DocumentCode :
1033580
Title :
Experimental study of a microstrip array on high permittivity substrate
Author :
Schaubert, Daniel H. ; Yngvesson, K. Sigfrid
Author_Institution :
Univ. of Massachusetts, Amherst, MA, USA
Volume :
34
Issue :
1
fYear :
1986
fDate :
1/1/1986 12:00:00 AM
Firstpage :
92
Lastpage :
97
Abstract :
The results of an experimental study of microstrip patch antennas on moderately thick (0.02-0.03 
) substrates with relative permittivities of 10 and 13 are reported. Measured input impedances are qualitatively similar to those of antennas on thinner substrates with lower 
, but significant differences in resonant resistance are observed for probe-fed and microstripline-fed antennas. Radiation patterns of individual elements exhibit deep scallops that appear to be caused by surface wave diffraction at the edges of the substrate, but four-element monopulse patterns exhibit a usable main beam and tracking null.
) substrates with relative permittivities of 10 and 13 are reported. Measured input impedances are qualitatively similar to those of antennas on thinner substrates with lower , but significant differences in resonant resistance are observed for probe-fed and microstripline-fed antennas. Radiation patterns of individual elements exhibit deep scallops that appear to be caused by surface wave diffraction at the edges of the substrate, but four-element monopulse patterns exhibit a usable main beam and tracking null.Keywords :
Microstrip arrays; Antenna measurements; Antenna radiation patterns; Electrical resistance measurement; Impedance measurement; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Permittivity measurement; Resonance; Surface impedance;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1986.1143723
Filename :
1143723
Link To Document :
