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A wideband digital polarization synthesis method
Author(s) -
Zhang Junrui,
Song Lizhong,
Du Qingfu,
Chen Yao
Publication year - 2018
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21411
Subject(s) - wideband , circular polarization , polarization (electrochemistry) , optics , linear polarization , physics , elliptical polarization , turnstile antenna , axial ratio , antenna (radio) , directional antenna , computer science , telecommunications , slot antenna , microstrip , laser , chemistry
A novel wideband digital polarization synthesis method is presented here. The method is based on the definition of antenna polarization and both simulated and measured antenna patterns. A mathematical formulation is used to determine the synthesis coefficients. Any state of polarization (elliptical, circular, and linear) can be synthesized theoretically. Here, we mainly focus on the method for synthesizing linearly polarized antennas into circularly polarized antennas. There is no restriction regarding the array geometry or element patterns. The method can yield pure circularly polarized antenna patterns within the whole working band. The synthesized circularly polarized antennas are then used to receive circularly polarized signals. The method can provide more accurate polarized data for wideband solar radio observations and other systems that require accurate polarization measurements.