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In this brief, we present a dual-band ultralow-power ultrawideband (UWB) impulse radio (UWB-IR) transceiver in a 90-nm CMOS process for low-data-rate UWB on-off keying (OOK) communications. The dual-band topology enables separation of timing and data impulses for simplified synchronization and duty cycling. The receiver can dynamically switch between two 500-MHz bands centered at 3.5 and 4.5 GHz with...
A novel design for a merged modulator-demodulator Wave-Radio Interferometer (WRI) transceiver operating in quadrature-phase shift-keying (QPSK) modulation is presented. In order to phase modulate an ultra-wide band (UWB) signal, the WRI transceiver has been designed to have a linear phase response in the frequency range 3.1-4.1GHz. To maximize the versatility of the design, the core of the proposed...
In this paper we present an 8 Gbps CMOS amplitude-shift-keying (ASK) modulator in the transmitter and a 19.2 mW 2 Gbps CMOS pulse receiver circuits for high-speed and low-power 60 GHz millimeter-wave impulse radio. High-speed ASK modulation is obtained without using DC power by turning on and off of the shunt connected short channel NMOSFET switches. The isolation is maximized using quarter-wavelength...
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