M. Kara, CALCULATION OF THE RADIATION-PATTERNS OF RECTANGULAR MICROSTRIP ANTENNA ELEMENTS WITH VARIOUS SUBSTRATE THICKNESSES, Microwave and optical technology letters, 13(4), 1996, pp. 221-226
Formulas based on the two-slot, the cavity, and the electric surface c
urrent models to determine the far-field radiation patterns in both th
e E and H planes of rectangular antenna elements have been studied and
their validity has been assessed. Their variations were experimentall
y verified by analyzing a set of newly designed rectangular microstrip
antenna elements with various substrate thicknesses. (C) 1996 John Wi
ley & Sons, Inc.