Title :
Study of polarizing grid response to a field expanded into Gaussian beam modes
Author :
Martin, F. ; Castafler, M.S. ; de Haro, L. ; Garcia, L.E. ; Pintado, J. Martin
Author_Institution :
Dpto. Senales, Sistemas y Radiocomunicaciones, Univ. Politecnica de Madrid, Spain
Abstract :
In radioastronomy systems, polarizing grids are widely used for diverse purposes. The paper presents a study of the beam radiated by a conical corrugated horn which couples with an ideal polarizing grid; beam mode expansion, including fundamental and higher order modes, is taken into consideration. Therefore, the accuracy of the analysis is improved. A study of transmitted beams as functions of grid wires angle is included.
Keywords :
Gaussian distribution; antenna radiation patterns; conical antennas; electromagnetic wave polarisation; horn antennas; radioastronomical techniques; Gaussian beam modes; beam mode expansion; conical corrugated horn antenna; higher order modes; polarizing grid; radioastronomy systems; Calibration; Electromagnetic modeling; Electromagnetic scattering; Electromagnetic wave polarization; Feeds; Optical coupling; Optical scattering; Software tools; Telecommunications; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330594
