Title :
PO and PTD analyses in polarization prediction for plane wave diffraction from a large circular disk
Author :
Ando, M. ; Kinoshita, T.
Author_Institution :
Fac. of Eng., Tokyo Inst. of Technol., Japan
Abstract :
The authors investigate plane-wave diffraction by a large flat disk, 10 wavelengths in diameter, in order to check the accuracy of PO (physical optics) and PTD (physical theory of diffraction) analyses. The excellent accuracy of the PTD is demonstrated. However, the PO is shown to result in excessive errors in cross-polarization prediction. The principal errors in the PTD are identified as the effects of secondary diffraction.<>
Keywords :
electromagnetic wave diffraction; electromagnetic wave polarisation; EM wave diffraction; EM wave polarization; PO; PTD; cross-polarization prediction; excessive errors; large circular disk; physical optics; physical theory of diffraction; plane wave diffraction; Bismuth; Erbium; Geometry; Optical diffraction; Optical polarization; Optical scattering; Pattern analysis; Physical optics; Physical theory of diffraction; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134945
