Radio astronomical phased arrays with fiber-optic design architecture

A. N. Bratchikov, D. I. Voskresensky, Kees van 't Klooster

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Fiber optics and microwave photonics are considered to be the technological basis for the solution of at least the two main design problems in large radio astronomical active phased arrays (RAAPA): phase stabilized LO reference signal transmission to each antenna element or subarray; antenna array beamforming. We describe in detail the solution to the former problem. It is the experimental version of a new fiber-optic link, operating in the remote heterodyning mode, with phase stability (<1° of phase) and full compensation of the insertion loss in the RF, microwave and millimeter wave frequency regions. Two principal methods of fiber-optic beamforming in a big RAAPA are also described in detail. The first one is based on an optical true-time delay (TTD) technique to realize the classic beamforming strategy by optical means. Systems of the second kind actively use hybrid coherent optical processors, replacing the classic beamforming strategy by holographic principles and avoiding the necessity of microwave radiation delay or phase shift evaluation in every array radiator in the real-time domain.

Original languageEnglish
Title of host publication4th International Conference on Antenna Theory and Techniques, ICATT 2003
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages617-623
Number of pages7
ISBN (Print)0-7803-7881-4
DOIs
Publication statusPublished - 1 Jan 2003
Externally publishedYes
Event4th International Conference on Antenna Theory and Techniques, (ICATT2003) - Sevastopol, Ukraine
Duration: 9 Sep 200312 Sep 2003

Conference

Conference4th International Conference on Antenna Theory and Techniques, (ICATT2003)
Abbreviated titleICATT2003
CountryUkraine
CitySevastopol
Period9/09/0312/09/03

Keywords

  • Array signal processing
  • Delay
  • Holographic optical components
  • Holography
  • Microwave antenna arrays
  • Optical arrays
  • Optical fibers
  • Optical mixing
  • Phased arrays
  • Transmitting antennas

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  • Cite this

    Bratchikov, A. N., Voskresensky, D. I., & van 't Klooster, K. (2003). Radio astronomical phased arrays with fiber-optic design architecture. In 4th International Conference on Antenna Theory and Techniques, ICATT 2003 (pp. 617-623). [1238818] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICATT.2003.1238818