Beam pattern reconfigurable circularly polarized transmitarray antenna by rearrangement of sources

A novel method for a beam pattern reconfigurable circularly polarized (CP) transmitarray antenna based on passive metasurface is proposed by a rearrangement of source antennas. Two source antennas among eight source antennas are selected for the fine beam steering. The beam steering angle can be fin...

Full description

Saved in:
Bibliographic Details
Published in:Microwave and optical technology letters 2019-04, Vol.61 (4), p.999-1003
Main Authors: Lee, Jae‐Gon, Kwon, Taek‐Sun, Lee, Jeong‐Hae
Format: Article
Language:English
Subjects:
Antennas
Beam steering
Circular polarization
Reconfiguration
Substrates
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel method for a beam pattern reconfigurable circularly polarized (CP) transmitarray antenna based on passive metasurface is proposed by a rearrangement of source antennas. Two source antennas among eight source antennas are selected for the fine beam steering. The beam steering angle can be finely controlled by the positions and phase difference of the source. Moreover, this kind of transmitarray antenna can be utilized to generate multibeam by the combination of the source antennas for radiation to different directions. To verify its feasibility, the planar CP source antenna is designed to operate at 5.8 GHz. Also, the metasurface consists of four layer separated by four substrates to cover full transmission phase variation of 2π, and the metallic layers are designed to circular patches. As a result, the steering angle is experimentally observed at each 0, +20, and +40°, and dual beam radiating to −30 and +30° also is measured.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.31657