Title :
Array guided surface waves on a finite planar array of dipoles with or without a grounded substrate
Author :
Civi, Özlem Aydin ; Pathak, P.H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara
Abstract :
The existence of array guided surface waves (AGSWs) on partially finite (finite times infinite) array of dipoles in air have been demonstrated earlier; the work in this paper extends this study to fully finite (finite times finite) planar arrays both in air and on a grounded material slab of infinite extent. Effects of AGSWs on scattering characteristics are examined and a ray interpretation is provided for the edge/corner excitation of AGSWs and conventional substrate surface waves
Keywords :
dipole antenna arrays; electromagnetic wave scattering; microstrip antenna arrays; surface electromagnetic waves; waveguides; array guided surface waves; conventional substrate surface waves; edge-corner excitation; finite planar dipole array; grounded material slab; grounded substrate; ray interpretation; scattering characteristics; Dielectric substrates; Diffraction; Frequency selective surfaces; Phased arrays; Planar arrays; Propagation constant; Scattering; Slabs; Surface impedance; Surface waves; Finite arrays; frequency selective surfaces (FSS); periodic structures; surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.879185
