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A mm-Wave Phased-Array Fed Torus Reflector Antenna With ±30° Scan Range for Massive-MIMO Base-Station Applications.
- Source :
-
IEEE Transactions on Antennas & Propagation . May2022, Vol. 70 Issue 5, p3398-3410. 13p. - Publication Year :
- 2022
-
Abstract
- A phased-array fed reflector antenna system is presented which can be used for mm-wave base station applications. The proposed system is designed to support massive-multi-input–multi-output (MIMO) scenarios within a wide coverage ($\pm 30^\circ $) in the azimuth plane and a limited coverage at the elevation plane. A design and characterization methodology has been established to optimize the system for the operation in various line-of-sight conditions by adopting the maximum-ratio-transmission (MRT) and zero-forcing (ZF) MIMO algorithms. A two-user MIMO case study has been considered for the evaluation of the key system performance metrics, i.e., the effective isotropic radiated power, power consumption, signal-to-noise-ratio (SNR), and signal-to-interference-plus-noise-ratio (SINR). This study demonstrates that the phased-array fed reflector concept has a major advantage over traditional direct-radiating phased-array (DRPA) antennas to reduce energy consumption. In the present example, it requires 12–14 dB less transmitted power as compared with the MRT-beamformed DRPAs for the same SNR, and 26–27 dB less transmitted power relatively to ZF-beamformed DRPA systems for the same SINR. A prototype, employing a 55 cm diameter torus reflector and operating at 28 GHz-band, has been manufactured and tested. The measurement results agree well with simulations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 70
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 156742034
- Full Text :
- https://doi.org/10.1109/TAP.2021.3138450