6533b86efe1ef96bd12cc8a6
RESEARCH PRODUCT
Chirped fibre Bragg gratings for phased-array antennas
Beatriz OrtegaMiguel V. AndrésJosé CapmanyLiang DongDaniel PastorBenito GimenoJose L. Cruzsubject
Materials sciencebusiness.industryPhased arrayBandwidth (signal processing)Physics::OpticsGratingÒpticaWavelengthOpticsFiber Bragg gratingOptoelectronicsAntenes (Electrònica)Physics::Atomic PhysicsElectrical and Electronic EngineeringbusinessMicrowavedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-01-01 |