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http://dx.doi.org/10.4218/etrij.14.0114.0118

High-Performance Dual-Circularly Polarized Reflector Antenna Feed  

Lim, Joo-Young (Department of Radio and Communication Engineering, Chungbuk National University)
Nyambayar, Jargalsaikhan (Department of Radio and Communication Engineering, Chungbuk National University)
Yun, Je-Young (Department of Radio and Communication Engineering, Chungbuk National University)
Kim, Dong-Hyun (Naro Space Center, Korea Aerospace Research Institute)
Kim, Tae-Hyung (Naro Space Center, Korea Aerospace Research Institute)
Ahn, Bierng-Chearl (Department of Radio and Communication Engineering, Chungbuk National University)
Bang, Jae-Hoon (Department of Radio and Communication Engineering, Chungbuk National University)
Publication Information
ETRI Journal / v.36, no.6, 2014 , pp. 889-893 More about this Journal
Abstract
This paper presents a high-performance dual-circularly polarized feed employing a dielectric-filled circular waveguide. Novel features are incorporated in the proposed feed, such as a dielectric rod radiator for high gain and good impedance matching; dual quarter-wave chokes for low axial ratio over wide angles and for low back radiation; an integrated septum polarizer; and two end-launch-type coaxial-to-waveguide transitions. The proposed feed shows excellent performance at 5.0 GHz to 5.2 GHz.
Keywords
Reflector antenna feed; dual-circular polarization; low axial ratio;
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