Multiband UWB Generation based on a Single Bandpass Filter with Tuning and Reconfiguration Capabilities

M. Bolea, J. Mora, B. Ortega, and J. Capmany (Spain)

Keywords

Photonic microwave filter, MultibandUWB, Signalprocessing, Reconfigurable Radio

Abstract

We propose and experimentally demonstrate an arbitrary microwave signal generator based on a single bandpass photonic filter. The system operation principle is based on an optical source whose power distribution can be modified by using and optical channel selector and a Mach-Zehnder interferometer. A theoretical analysis and experimental measurements show that arbitrary pulse profiles can be achieved by means of different optical source spectra. A tuning range around 20 GHz can be implemented due to the difference in the time delay introduced by the variable delay line in the Mach-Zehnder interferometer. The approach is adapted to Multiband UWB pulse generation by selecting the corresponding optical spectrum profile. Reconfiguration and tuning capabilities allow generated waveforms fitting the FCC spectral requirements.

Important Links:



Go Back