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http://dx.doi.org/10.5515/KJKIEES.2010.21.5.459

Artificial Magnetic Conductor(AMC) Polarizer Backed Circular-Polarized(CP) Antenna  

Chang, Ki-Hun (Department of Electrical and Electronic Engineering, Yonsei University)
Ahn, Ji-Hwan (Department of Electrical and Electronic Engineering, Yonsei University)
Yoon, Young-Joong (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.5, 2010 , pp. 459-467 More about this Journal
Abstract
A new type of circularly polarized(CP) antenna that is characterized by having both low-profile and greater axial-ratio bandwidth(ARBW) beyond existing antennas is introduced through analysis of artificial magnetic conductor(AMC) polarizer, and experimentally demonstrated. Although it is made use of a linear-polarized dipole antenna with close proximity to ground plane, it is backed by AMC polarizer so as to efficiently radiate with circularly changed polarization whose ARBW is determined by the texture geometry, whereas existing antennas exhibit CP surface-current on radiators, which limit ARBW. The mechanism of the polarization conversion is theoretically analyzed for ARBW, and the experimental properties including the impedance matching, CP radiation pattern, axial-ratio pattern, ARBW, and two-port isolation are discussed.
Keywords
Artificial Magnetic Conductors; Polarizer; Circular Polarization; Axial-Ratio Bandwidth; Low-Profile Antenna;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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