Low-Profile Circularly Polarized Double-Folded Transmitarray Antenna

A low-profile circularly polarized (CP) double-folded transmitarray antenna (DFTA) is proposed. The DFTA consists of a receiver-transmitter transmitarray surface (TS), a polarization rotating surface (PRS) and a patch antenna. The linearly polarized (LP) wave radiated by the patch antenna is rotated...

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Bibliographic Details
Published in2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT) pp. 1 - 3
Main Authors Li, Zhushen, Zhao, Gang, Liu, Fengzi, Hui, Caitao, Li, Xiaohu, Wen, Xinyun
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.05.2023
Subjects
circularly polarized
double-folded
Low-profile
Microwave antennas
Microwave communication
Microwave integrated circuits
Millimeter wave technology
Patch antennas
Surface waves
transmitarray antenna
Transmitting antennas
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Summary:A low-profile circularly polarized (CP) double-folded transmitarray antenna (DFTA) is proposed. The DFTA consists of a receiver-transmitter transmitarray surface (TS), a polarization rotating surface (PRS) and a patch antenna. The linearly polarized (LP) wave radiated by the patch antenna is rotated twice, then received and converted into CP wave by the TS, and finally radiated into free space with transmission phase manipulation. Therefore, the LP spherical wave from the patch antenna can be transduced into the high-gain CP plane wave. This design greatly decreases the profile of TA to about a quarter of the focal length. The simulated results show that the proposed antenna has a gain of 20.6dBic with an aperture efficiency of 21.4% at 13GHz, and a -3dB gain bandwidth of 10.8%, in which the axial ratio is less than 3dB.
DOI:10.1109/ICMMT58241.2023.10276587