Ultra-wideband is of particular interest worldwide in short range wireless communication with two major propo-sals:direct-sequence ultra wideband (DS-UWB) and multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra wideband.MB-OFDM is considered a mature proposal.A novel design of dual-carrier orthogonal frequency division multiplexing (DC-OFDM) is presented for MB-OFDM UWB RF system

in which two adjacent sub-carriers are adopted to realize ultra wideband communication.To cut down difficulties in hardware implementation and system complexity

combination/divider ways is used in the two sub-carriers in intermediate frequency.Moreover

some key parts in UWB RF receiver are designed

including low noise amplifier

frequency synthesizer as well as RF demodulator.In the end

a DC-OFDM UWB receiver experiment demo test bed is set up.Test results show that the researched RF receiver had been developed with the measured results meeting FCC RF standard perfectly

and the design could be used in other wideband communication systems.