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Chirped fibre Bragg gratings for phased-array antennas

Chirped fibre Bragg gratings for phased-array antennas

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  • Author(s): J.L. Cruz 1 ; B. Ortega 2 ; M.V. Andrés 1 ; B. Gimeno 1 ; D. Pastor 2 ; J. Capmany 2 ; L. Dong 3
    • View affiliations
    • Affiliations: 1: Instituto de Ciencia de los Materiales, Departamento de Física Aplicada, Universidad de Valencia, Burjassot, Spain
      2: ETSI Telecomunicación, Departamento de Comunicaciones, Universidad Politécnica de Valencia, Valencia, Spain
      3: Optoelectronics Research Centre, University of Southampton, Southampton, United Kingdom
  • Source: Volume 33, Issue 7, 27 March 1997, p. 545 – 546
    DOI:  10.1049/el:19970407 , Print ISSN 0013-5194, Online ISSN 1350-911X
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A variable delay line for phased-array antennas based on a chirped fibre Bragg grating is demonstrated. The time delay of a microwave modulating signal is modified by scanning in wavelength a chirped grating. In this initial experiment, time delay variations up to 556 ps have been achieved using a grating of 0.4 nm bandwidth and 6 cm length and modulating in the frequency range 390 MHz–5.20 GHz.

Inspec keywords: antenna accessories; antenna phased arrays; optical delay lines; optical fibres; diffraction gratings

Other keywords: phased-array antennas; microwave modulating signal; variable delay line; 390 MHz to 5.2 GHz; 556 ps; 6 cm; chirped fibre Bragg gratings

Subjects: Fibre optics; Antenna accessories; Antenna arrays

References

    1. 1)
      • A.J. Seeds . Optical technologies for phased array antennas. IEICE Trans. Electron. , 2 , 198 - 206
    2. 2)
      • R. Kashyap , H.G. Froehlich , A. Swanton , D.J. Armes . Super-step-chirped fibre Bragg gratings. Electron. Lett. , 15 , 1394 - 1396
    3. 3)
      • L. Dong , J.L. Cruz , L. Reekie , J.A. Tucknoctt . Fabrication of chirped Bragg gratings using etched tapers. Electron. Lett. , 11 , 908 - 909
    4. 4)
      • D.T.K. Tong , M.C. Wu . Programmable dispersion matrix using Bragg fibre grating for opticallycontrolled phase array antennas. Electron. Lett. , 17 , 1532 - 1533
    5. 5)
      • I. Frigyes , A.J. Seeds . Optically generated true time delay in phased-array antennas. IEEE Trans. Microw. Theory Tech. , 9 , 2378 - 2389
    6. 6)
      • G.A. Ball , W.H. Glenn , W.W. Morey . Programmable fibre optic delay line. IEEE Photonics Technol. Lett. , 6 , 741 - 743
    7. 7)
      • A. Molony , C. Edge , I. Bennion . Fibre grating delay element for phased array antennas. Electron. Lett. , 17 , 1485 - 1486
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