Title :
Performance of aperture-coupled dual-patch microstrip phased arrays
Author :
Au, Tsien Ming ; Tong, Kin Fai ; Luk, Kwai-Man
Author_Institution :
Centre for Wireless Commun., Nat. Univ. of Singapore, Singapore
fDate :
9/1/1996 12:00:00 AM
Abstract :
This paper presents an analysis of infinite phased arrays of aperture-coupled two-layer dual-patch microstrip antennas. The substrate layers for supporting the patches have the same dielectric constant and are separated by an airgap. The numerical model is based on the spectral-domain method of moments together with the Floquet theorem. Calculated results predict a 2:1 standing-wave ratio (SWR) bandwidth of 30-40% in a ±60° scan cone for arrays operating at around 4 GHz. Measured results from a waveguide simulator are obtained to verify the theoretical prediction
Keywords :
antenna phased arrays; method of moments; microstrip antenna arrays; spectral-domain analysis; 2:1 standing-wave ratio bandwidth; 4 GHz; Floquet theorem; airgap; aperture-coupled dual-patch microstrip phased arrays; dielectric constant; infinite phased arrays; scan cone; spectral-domain method of moments; substrate layers; two-layer dual-patch microstrip antennas; waveguide simulator; Aperture antennas; Bandwidth; Dielectric constant; Dielectric measurements; Dielectric substrates; Microstrip antenna arrays; Microstrip antennas; Moment methods; Numerical models; Phased arrays;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
