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Numerical investigation on the performance of a septum polarizer by inserting additional stubs for its applications in the CP horn antennas
Author(s) -
Chou HsiTseng,
Lee WenWen
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23982
Subject(s) - polarizer , stub (electronics) , return loss , horn antenna , microwave , french horn , optics , engineering , optoelectronics , physics , electronic engineering , electrical engineering , antenna (radio) , acoustics , telecommunications , directional antenna , slot antenna , birefringence
A septum polarizer influenced by inserting short stubs inside the waveguide is studied. Several configurations of stub insertion are investigated to exhibit their physical behaviors. Numerical results show that proper stub insertions may provide additional freedoms to optimally design the polarizer with a better return loss and a flexible phase tuning, which is particularly useful to compensate the deficiency of an imperfect horn antenna to radiate good circularly polarized fields. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 269–273, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23982