title: Power-efficient impulse radio ultrawideband pulse generator based on the linear sum of modified doublet pulses.
abstract: We propose a new and power-efficient impulse radio ultawideband (IR-UWB) pulse design concept. The proposed concept is based on a linear sum of modified doublet pulses. The proposed concept is both simulated and experimentally demonstrated. The experimental demonstration employs a photonic scheme that generates the designed pulse using two main steps, mainly optical shaping and differential detection. The optical shaping is performed using a single electro-optic modulator biased in the nonlinear portion of its transfer function, and the differential detection is performed using a balanced photodetector. The generated IR-UWB pulse is fully Federal Communications Commission compliant, even in the highly power-restricted global positioning system band. The proposed optical scheme has potential to be integrated on a compact optical chip and thus suitable for reliable, low-cost, high-speed, short-range UWB wireless access, such as in-building networks.
authors.affiliation: COBRA Research Institute, Eindhoven University of Technology, Den Dolech 2, 5612 AZ, Eindhoven, Netherlands. s.t.abraha@tue.nl
authors.forename: S T
authors.initials: ST
authors.lastname: Abraha
authors.forename: C M
authors.initials: CM
authors.lastname: Okonkwo
authors.forename: E
authors.initials: E
authors.lastname: Tangdiongga
authors.forename: A M J
authors.initials: AM
authors.lastname: Koonen