A photonics-assisted beamformer for K-band RF antenna arrays

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Abstract

We present an experimental demonstration of radio beamforming using an optical chip for application in K-band satellite communication. Via coherent combination of four RF channels, close to 12 dB beamforming gain is obtained. As a result, the transmission capacity is enhanced from 8-QAM, 5.81 Gbps to 32-QAM, 9.68 Gbps of multi-carrier data. For 4 channel beamforming, error-free performance (BER<1E-12) is obtained with 8-QAM data. The tuning of the optical beamforming chip is done electronically via a software interface by a computer.

Original languageEnglish
Title of host publicationMWP 2017 - 2017 International Topical Meeting on Microwave Photonics
PublisherInstitute of Electrical and Electronics Engineers
Pages1-4
Number of pages4
Volume2017-December
ISBN (Electronic)9781538607626
DOIs
Publication statusPublished - 5 Dec 2017
Event2017 International Topical Meeting on Microwave Photonics (MWP 2017) - Beijing, China
Duration: 23 Oct 201726 Oct 2017
http://www.opticsjournal.net/Columns/MWP2017.htm

Conference

Conference2017 International Topical Meeting on Microwave Photonics (MWP 2017)
Abbreviated titleMWP 2017
CountryChina
CityBeijing
Period23/10/1726/10/17
Internet address

Keywords

  • delay tuning
  • K-band radio beamforming
  • Optical ring resonators
  • optical signal processing

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    Tessema, N. M., Trinidad, A. M., Mekonnen, K. A., van Zantvoort, J. H. C., Huijskens, F. M., Cao, Z., ... Koonen, A. M. J. (2017). A photonics-assisted beamformer for K-band RF antenna arrays. In MWP 2017 - 2017 International Topical Meeting on Microwave Photonics (Vol. 2017-December, pp. 1-4). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/MWP.2017.8168645