Title :
Theoretical and experimental investigation of smooth and discrete microstrip ring antennas
Author :
Mellah, S. ; Drissi, M. ; Floch, J.M. ; Citerne, J.
Author_Institution :
INSA, Rennes, France
Abstract :
A rigorous full wave analysis of ring antennas using the integral equation technique is presented. The input impedance and the radiation patterns of both smooth and discrete microstrip ring antennas are calculated for the first two resonance modes (TM/sub 11/ and TM/sub 12/). A full wave analysis using the integral equation technique associated with the method of moments is shown to be a powerful tool for characterizing microstrip ring antennas. It is shown also that the second TM/sub 12/ resonance mode of the ring has a greater bandwidth than that obtained for the first TM/sub 11/ mode. Good agreement is reported between theoretical and experimental results.<>
Keywords :
antenna radiation patterns; electric impedance; integral equations; microstrip antennas; TM/sub 11/; TM/sub 12/; bandwidth; discrete microstrip ring antennas; full wave analysis; input impedance; integral equation; method of moments; radiation patterns; resonance modes; smooth microstrip ring antennas; Antenna measurements; Antenna theory; Bandwidth; Dipole antennas; Electromagnetic measurements; Integral equations; Microstrip antennas; Mobile antennas; Resonance; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221429
