Title:
Radio-over-Fibre-Technology
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Description: The research in this thesis focussed on the feasibility of using both single-mode and
multimode fibres to distribute high-frequency microwave signals to simplified remote
radio antenna units. An alternative radio-over-fibre technique, termed Optical
Frequency Multiplication (OFM) has been investigated. OFM entails the periodic
filtering of a swept optical signal at the headend followed by photodetection at the
radio access unit. A low sweep frequency (e.g. 3 GHz) is used. After photodetection
at the remote radio access unit, high-frequency (>21 GHz) harmonic components of
the sweep signal are generated. The desired microwave signal is selected by means of
bandpass filtering, amplified, and radiated by the antenna. Modulated microwave
carriers are generated by intensity modulating the frequency-swept optical signal.
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Radio-over-Fibre Technology for Broadband Wireless Communication Systems.pdf
