A Dual Circularly Polarized Horn Antenna in Ku-Band Based on Chiral Metamaterial

A dual circularly polarized horn antenna, which employs a chiral metamaterial composed of two-layered periodic metallic arc structure, is presented. The whole antenna composite has functions of polarization transformation and band-pass filter. The designed antenna produces left-handed circularly pol...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2014-04, Vol.62 (4), p.2307-2311
Main Authors: Ma, Xiaoliang, Huang, Cheng, Pan, Wenbo, Zhao, Bo, Cui, Jianhua, Luo, Xiangang
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Applied sciences
Bandpass filters
Broadband antennas
chiral metamaterial
Circularity
circularly polarized antenna
Coordinate measuring machines
Exact sciences and technology
Gain
Horn antennas
Ku-band
Metamaterials
Noise levels
Polarization
Radiocommunications
Telecommunications
Telecommunications and information theory
Transformations (mathematics)
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Description
Summary:A dual circularly polarized horn antenna, which employs a chiral metamaterial composed of two-layered periodic metallic arc structure, is presented. The whole antenna composite has functions of polarization transformation and band-pass filter. The designed antenna produces left-handed circularly polarized wave in the band from 12.4 GHz to 12.5 GHz, and realizes right-handed circularly polarized wave in the range of 14.2 GHz-14.4 GHz. Due to low loss characteristic of the chiral metamaterial, the measured gains are only reduced by about 0.6 dB at the above two operation frequencies, compared with single horn antenna. The axial ratios are 1.05 dB at 12.45 GHz and 0.95 dB at14.35 GHz.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2301841