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A Compact Full 90° Cone-Metric-Space Beam-Scanning Antenna Array Using Resonant-Type Phase-Shifters.
- Source :
-
IEEE Transactions on Antennas & Propagation . Jun2022, Vol. 70 Issue 6, p4404-4413. 10p. - Publication Year :
- 2022
-
Abstract
- A compact and cost-effective antenna array that enables a 2-D full 90° cone-metric-space beam-scanning is designed in this article. To achieve this unique function, a resonant-type phase-shifter, which is characterized by small size and large phase-shifting ability, is proposed. Primary and secondary feed networks are designed in series configurations, in which resonant-type phase-shifters are periodically inserted. The beam-scanning of this antenna array is solely controlled by frequency in one dimension, while it is controlled by a combination of frequency and resonant-type phase-shifter in the other dimension. A validation is demonstrated by a $6\times12$ antenna array prototype operating from 4.45 to 4.95 GHz. Measurement results indicate a full 360° scanning range in the azimuth plane and a ±45° scanning range in the elevation plane. When the beam is toward the broadside direction, the radiation efficiency is estimated to be around 29%, while measured sidelobe levels (SLLs) are smaller than −19 dB in both E-plane and H-plane. Thanks for the proposed control mechanism of simplified 2-D beam-scanning, this method is considered cost-effective and very suitable to be deployed in low-cost systems. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANTENNA arrays
*AZIMUTH
Subjects
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 70
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 157490511
- Full Text :
- https://doi.org/10.1109/TAP.2021.3138447