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A dual-band up-converter (DB-UPC) for a dual-band direct sequence UWB transmitter is demonstrated in 0.18-mum CMOS. The DB-UPC translates a base-band UWB pulse to a 3-5 GHz low-band or 7-9 GHz high band. The DB-UPC consists of two mixers followed by a combiner. The high and low band mixers consist of a fully differential mixer core followed by a differential to single-ended converter. The DB-UPC has...
A dual-band transceiver able to work on both UWB low band (3 to 5GHz) and high band (7 to 9GHz) is presented. A method of DSB upconversion in TX, and SSB downconversion and detection in RX is proposed to achieve high data rate non-coherent communication. Realized in 0.18 mum CMOS, the RX achieves an NF of 9.4dB, an IIP3 of -10.3dBm, and a sensitivity of -76dBm. It can attain a transmission rate up...
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