Title :
Optically reconfigurable matching networks
Author :
Draskovic, D. ; Budimir, D.
Author_Institution :
Wireless Commun. Res. Group, Univ. of Westminster, London
fDate :
Sept. 9 2008-Oct. 3 2008
Abstract :
In this paper an optically reconfigurable circuit as a part of the input matching network is proposed and applied in order to design a 2.5-3.5 GHz frequency tunable power amplifier. Tunability is achieved by increasing the power of the laser applied to the highly resistive silicon wafer and changing the properties of silicon under optical illumination. Tunable class AB power amplifier with the optical switch in the input matching circuit has obtained the frequency tuning range of 2.5-3.5 GHz with no significant loss in efficiency and linearity.
Keywords :
UHF power amplifiers; circuit tuning; integrated optics; microwave power amplifiers; optical switches; frequency 2.5 GHz to 3.5 GHz; input matching circuit; input matching network; optically reconfigurable circuit; optically reconfigurable matching networks; resistive silicon wafer; tunable power amplifier; Frequency; Impedance matching; Laser tuning; Optical amplifiers; Optical fiber networks; Power amplifiers; Semiconductor optical amplifiers; Silicon; Stimulated emission; Tunable circuits and devices;
Conference_Titel :
Microwave photonics, 2008. jointly held with the 2008 asia-pacific microwave photonics conference. mwp/apmp 2008. international topical meeting on
Conference_Location :
Gold Coast, Qld
Print_ISBN :
978-1-4244-2168-8
Electronic_ISBN :
978-1-4244-2169-5
DOI :
10.1109/MWP.2008.4666654
