Title :
A Dual Circularly Polarized Horn Antenna in Ku-Band Based on Chiral Metamaterial
Author :
Xiaoliang Ma ; Cheng Huang ; Wenbo Pan ; Bo Zhao ; Jianhua Cui ; Xiangang Luo
Author_Institution :
State Key Lab. of Opt. Technol. on Nano-Fabrication & Micro-Eng., Inst. of Opt. & Electron., Chengdu, China
Abstract :
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.
Keywords :
band-pass filters; chirality; horn antennas; metamaterial antennas; microwave antennas; multifrequency antennas; Ku-band antenna; band-pass filter; chiral metamaterial; dual circularly polarized horn antenna; frequency 12.4 GHz to 12.5 GHz; frequency 14.2 GHz to 14.4 GHz; left handed circularly polarized wave; polarization transformation; right handed circularly polarized wave; two layered periodic metallic arc structure; Antenna measurements; Broadband antennas; Coordinate measuring machines; Horn antennas; Metamaterials; Polarization; Ku-band; chiral metamaterial; circularly polarized antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2301841
