Title :
Revisiting stepped septum circular polarizer using full-wave simulations
Author :
Kim, Ilkyu ; Rahmat-Samii, Yahya
Author_Institution :
Electr. Eng. Dept., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
Septum is an effective polarizer to generate circular polarizations from the linear excitations in a waveguide. In this paper, the functionality of the septum is revisited using full-wave simulations, and a graphical visualization is presented to aid in better understanding the fundamental principals of a stepped septum circular polarizer. Septum responses to even and odd mode excitations are analyzed, and the electric field distributions inside the septum polarizer are presented. The simulated S-parameters and axial ratio validates its effectiveness.
Keywords :
S-parameters; circular waveguides; waveguide polarisers; axial ratio; electric field distributions; full-wave simulations; graphical visualization; odd mode excitations; simulated S-parameters; stepped septum circular polarizer; waveguide; Antennas; Electric fields; Geometry; Rectangular waveguides; Scattering parameters; Visualization; circular polarization; circular polarizer; septum; waveguide;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996426