DocumentCode :
1024516
Title :
On the accuracy of physical optics
Author :
Kildal, Per-Simon
Author_Institution :
Electronics Res. Lab., Univ. of Trondheim, Norwegian Inst. of Tech., Trondheim, Norway
Volume :
30
Issue :
3
fYear :
1982
fDate :
5/1/1982 12:00:00 AM
Firstpage :
509
Lastpage :
512
Abstract :
The first-order correction to the physical optics (PO) solution for the axial radiation field from parabolic reflector antennas is found. The correction is of order 
and is in quadrature with the PO solution. By means of the correction term the accuracy of the PO surface integral is round to be better than 
dB on axis, where 
is the diameter of the reflector. Thus, the PO solution for the directivity is extremely accurate for commun reflector sizes of several wavelengths 
.
and is in quadrature with the PO solution. By means of the correction term the accuracy of the PO surface integral is round to be better than dB on axis, where is the diameter of the reflector. Thus, the PO solution for the directivity is extremely accurate for commun reflector sizes of several wavelengths .Keywords :
Parabolic reflector antennas; Reflector antennas, parabolic; Antennas and propagation; Apertures; Arrayed waveguide gratings; Dielectrics; Linear antenna arrays; Microwave theory and techniques; Optical surface waves; Optical waveguides; Physical optics; Slabs;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1982.1142809
Filename :
1142809
Link To Document :
