Title :
Spatial coherence properties of planar antennas
Author :
Plonus, Martin A.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA
fDate :
7/1/1991 12:00:00 AM
Abstract :
Lateral spatial coherence of an antenna is modeled by random phase front tilts. An effective source coherence length is introduced, and a generalized Fresnel coefficient which takes into account the coherence of the source is abstracted. Generalized reciprocity relationships for beamwidth and source coherence as well as for observed coherence and source power distribution valid in the near and far field are developed
Keywords :
antenna theory; beamwidth; effective source coherence length; generalized Fresnel coefficient; lateral spatial coherence; planar antennas; random phase front tilts; source power distribution; Antenna measurements; Antenna radiation patterns; Apertures; Helium; Laser beams; Laser modes; Modems; Planar arrays; Power distribution; Spatial coherence;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
