Title :
Study on a series-fed aperture-coupled microstrip patch array
Author :
Wu, C. ; Wang, J. ; Fralich, R. ; Litva, J.
Author_Institution :
Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada
Abstract :
An accurate generalized analysis of a series-fed patch antenna array whose elements are electromagnetically coupled via an aperture is presented. Coupled integral equations are formulated using the Green´s function for a grounded dielectric slab so that the analysis includes all coupling, radiation, and surface-wave effects of both substrates. Uniformly weighted and -25 dB Chebyshev-weighted 16-element patch arrays at 5 GHz are studied. The weighting functions are achieved by adjusting the coupling apertures´ size and position through an optimization subroutine combined with rigorous numerical analysis. Experimental results are compared with this analysis and demonstrate satisfactory agreement.<>
Keywords :
antenna feeders; antenna theory; circuit analysis computing; microstrip antennas; microwave antenna arrays; optimisation; subroutines; -25 dB Chebyshev weighted array; 5 GHz; EM coupled; Green´s function; SHF; aperture-coupled microstrip patch array; coupled integral equations; coupling effects; grounded dielectric slab; numerical analysis; optimization subroutine; radiation effects; series fed array; substrates; surface-wave effects; uniformly weighted patch arrays; weighting functions; Antenna arrays; Apertures; Dielectric substrates; Electromagnetic analysis; Electromagnetic coupling; Green´s function methods; Integral equations; Microstrip antenna arrays; Patch antennas; Slabs;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115471
