title: Continuously variable long microwave-photonic delay of arbitrary frequency-chirped signals.
abstract: A generic method for the continuously variable, long microwave-photonic delay of the impulse response of arbitrarily chirped waveforms is proposed and demonstrated. Nonlinear-frequency-modulated waveforms of 500 MHz bandwidth are delayed by tens of nanoseconds. The principle relies on the specific phase-time relations of the waveforms, and is applicable to chirped pulses of arbitrary durations, central radio frequencies, and bandwidths. The approach is suitable for beam steering in large phased-array antennas.
authors.affiliation: Faculty of Engineering, Bar-Ilan University, Ramat-Gan 52900, Israel.
authors.forename: Ofir
authors.initials: O
authors.lastname: Klinger
authors.forename: Yonatan
authors.initials: Y
authors.lastname: Stern
authors.forename: Fabian
authors.initials: F
authors.lastname: Pederiva
authors.forename: Kambiz
authors.initials: K
authors.lastname: Jamshidi
authors.forename: Thomas
authors.initials: T
authors.lastname: Schneider
authors.forename: Avi
authors.initials: A
authors.lastname: Zadok