Title :
Chirped fibre Bragg gratings for phased-array antennas
Author :
Cruz, J.L. ; Ortega, B. ; Andrés, M.V. ; Gimeno, B. ; Pastor, D. ; Capmany, J. ; Dong, L.
Author_Institution :
Dept. de Fisica Aplicada, Valencia Univ., Spain
fDate :
3/27/1997 12:00:00 AM
Abstract :
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
Keywords :
antenna accessories; antenna phased arrays; diffraction gratings; optical delay lines; optical fibres; 390 MHz to 5.2 GHz; 556 ps; 6 cm; chirped fibre Bragg gratings; microwave modulating signal; phased-array antennas; variable delay line;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970407
