Title :
The determination of the propagation constant for the traveling wave in an infinite ground plane
Author :
Shamansky, Harry T. ; Dominek, Allen K.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
10/1/1988 12:00:00 AM
Abstract :
The propagation constant for the travelling wave in a trough in an infinite ground plane is examined. The null-field integral is used to determine the electromagnetic field in the trough structure, and pulse basis functions give the distribution of the aperture fields. From this, the propagation constant is solved for, using the Newton-Raphson iterative scheme. Various sizes of geometries are examined. The far-field patterns are calculated and compared with other solutions, thereby validating the integral formulation which subsequently provided the propagation constant. Measurements of two trough geometries are performed to validate the theoretical results
Keywords :
antenna radiation patterns; electromagnetic field theory; electromagnetic wave propagation; integral equations; iterative methods; Newton-Raphson iterative scheme; electromagnetic field; far-field patterns; infinite ground plane; integral formulation; null-field integral; propagation constant; pulse basis functions; travelling wave; travelling wave antennas; Aerodynamics; Apertures; EMP radiation effects; Electromagnetic fields; Electromagnetic scattering; Electromagnetic transients; Geometry; Helium; Integral equations; Performance evaluation; Propagation constant;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
