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On Antenna Array Out-of-Band Emissions
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- We substantiate and extend recent research on the behavior of the out-of-band emissions in antenna array transmitters. Specifically, with multi-user precoding, we show that the emissions are always beamformed in the directions of the intended receivers, contrary to some claims in the recent literature. Moreover, while also other spurious directions exist, we show that the emissions are always strongest in the directions of the intended receivers. We also show that power amplifiers with mutually different nonlinear phase characteristics will reduce the beamforming gain of the unwanted emissions, with the gain approaching the noncoherent combining limit as the phase deviations are increased.<br />Comment: Accepted for publication in IEEE Wireless Communications Letters
- Subjects :
- Beamforming
Signal Processing (eess.SP)
Computer science
Amplifier
213 Electronic, automation and communications engineering, electronics
020206 networking & telecommunications
02 engineering and technology
Precoding
Antenna array
Control and Systems Engineering
Distortion
Out-of-band management
Limit (music)
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
FOS: Electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Electrical Engineering and Systems Science - Signal Processing
Spurious relationship
Computer Science::Information Theory
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....d6b57b133abc9e6aa62e3d91ad1c3709
- Full Text :
- https://doi.org/10.48550/arxiv.1908.02982