Circular Antenna Array with Beam Direction and Polarization Control

In this paper, a circular antenna array is presented for indoor communication. The antenna array consists of 8 dual-polarization antenna elements. At first, the circular antenna array is fed identically, an azimuthal omnidirectional pattern is obtained. Next, the circular antenna array is fed with a...

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Bibliographic Details
Published in:IEEE access 2024-01, Vol.12, p.1-1
Main Authors: Li, Pei-Yu, Jin, Xin-Ran, Ding, Guo-Wen, Luo, Xin-Yao, Wang, Shen-Yun
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna feeds
Antenna measurements
Antenna radiation patterns
Antennas
Azimuth
Base station antenna array
beam shaping
beam steering
Beams (radiation)
Directive antennas
Electric fields
Gain
Maximum power
MMPTE
Polarization
polarization steering
Transmission efficiency
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Summary:In this paper, a circular antenna array is presented for indoor communication. The antenna array consists of 8 dual-polarization antenna elements. At first, the circular antenna array is fed identically, an azimuthal omnidirectional pattern is obtained. Next, the circular antenna array is fed with an optimized distribution of excitations (ODEs) that is calculated with a constrained method of maximum power transmission efficiency (CMMPTE), an azimuthal directional pattern with maximum directional gain and desired polarization state is obtained. Experimental and simulation results indicate that the average gain of the omnidirectional pattern ranges from 1.1 to 1.9 dBi for different polarization states, and the maximum gain of the directional pattern is about 9.3dBi for different polarization states with gain fluctuation less than 0.1dB in the azimuth plane. The reported circular array antenna is featured by high directional gain, 360° azimuthal beam continuously scanning, and desired beam polarization state, and it may have potential applications in indoor communications.
ISSN:2169-3536
DOI:10.1109/ACCESS.2024.3513698