Title :
Mutual coupling between reduced surface-wave microstrip antennas
Author :
Khayat, Michael A. ; Williams, Jeffery T. ; Jackson, David R. ; Long, Stuart A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Houston Univ., TX, USA
fDate :
10/1/2000 12:00:00 AM
Abstract :
An investigation of the mutual coupling between reduced surface-wave microstrip antennas is presented and compared with that for conventional microstrip antennas. Numerical results are presented from a theoretical analysis of the mutual coupling along with confirming experimental results. It is shown that for electrically thin substrates, the space-wave coupling, not the surface-wave coupling, is predominant for typical element spacing, for both the conventional and reduced surface-wave antennas. In addition, the mutual coupling behavior is examined using an asymptotic analysis, which demonstrates how the coupling falls off much faster with patch separation for reduced surface wave antennas compared to conventional microstrip patch antennas
Keywords :
antenna radiation patterns; electromagnetic coupling; microstrip antenna arrays; asymptotic analysis; electrically thin substrates; mutual coupling; numerical results; reduced surface-wave microstrip antennas; space-wave coupling; Antennas and propagation; Dielectric substrates; Diffraction; Magnetic separation; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Patch antennas; Scattering; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
