Design and implementation of an adaptive beamformer for phased array antenna applications

A modular beamformer, fully scalable in amplitude and phase, to be used with transmitting antenna arrays operating in the Digital Cellular System (DCS)/Personal Communications Service (PCS) frequency band, is designed and fabricated in this paper. The implementation of the structure is simple and ve...

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Bibliographic Details
Published in:Microwave and optical technology letters 2020-04, Vol.62 (4), p.1780-1784
Main Authors: Adamidis, George A., Vardiambasis, Ioannis O., Ioannidou, Melina P., Kapetanakis, Theodoros N.
Format: Article
Language:English
Subjects:
adaptive antenna
Amplitudes
antenna array
Antenna arrays
Antenna radiation patterns
Antennas
beam steering
beamformer
Beamforming
Communications systems
Frequencies
Frequency response
phased array
Phased arrays
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Summary:A modular beamformer, fully scalable in amplitude and phase, to be used with transmitting antenna arrays operating in the Digital Cellular System (DCS)/Personal Communications Service (PCS) frequency band, is designed and fabricated in this paper. The implementation of the structure is simple and very low cost; its performance is evaluated by measuring the frequency response, as well as the radiation patterns produced by an antenna array connected to the output of the beamformer. The latter exhibits low return losses and average amplitude imbalance less than ±0.8 dB, whereas the phase deviations do not exceed ±6° on average, over its 300 MHz bandwidth.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.32231