Title :
Effects of ground plane and dielectric truncations on the efficiency of a printed structure
Author :
Bhattacharyya, Arun K.
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada
fDate :
3/1/1991 12:00:00 AM
Abstract :
Effects of ground plane and/or dielectric truncation on the radiation efficiency of a printed radiator are studied. A closed-form expression for the reflection coefficient of surface wave modes from the truncated edge is obtained. Numerical results for the reflection coefficient and the radiation efficiency are discussed, and radiation patterns for various dielectric constants, substrate thicknesses, and ground plane dimensions are presented. It is found that for certain ground plane dimensions the radiation efficiency is considerably lower than normal; these dimensions should be avoided to reduce the surface wave loss
Keywords :
antenna radiation patterns; antenna theory; microstrip antennas; closed-form expression; dielectric truncation; ground plane effects; numerical results; printed antenna; printed radiator; radiation efficiency; radiation patterns; reflection coefficient; surface wave modes; truncated edge; Antenna radiation patterns; Antennas and propagation; Closed-form solution; Dielectric constant; Dielectric substrates; Diffraction; Magnetic separation; Reflection; Surface waves; Transmission lines;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
