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Cruz Muñoz, José Luis; Ortega, B.; Andrés, Miguel V.; Gimeno Martínez, B.; Pastor, D.; Capmany, J.; Dong, L. | |||
Aquest document és un/a article, creat/da en: 1997 | |||
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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. | |||
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