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An ultra-wideband Voltage Controlled Oscillator (VCO) is presented in this paper. The circuit achieves fast startups and stops which allow wideband pulses to be generated. In addition, the VCO allows bipolar modulations as Binary Phase Shift Keying to be implemented without the need of a shaping circuit as a mixer. The proposed VCO has been integrated on a(More)
This paper presents a high-rate IR-UWB transceiver chipset implemented in a 130-nm CMOS technology for WBAN and biomedical applications in the 3.1–4.9 GHz band. The transmitter is based on a pulse synthesizer and an analytical up-converted Gaussian pulse is used to predict its settings. Its measured peak-to-peak output voltage is equal to(More)
This paper presents some techniques to synthesize pulses in the context of IR-UWB. Pulse synthesizers are good candidates when different kinds of pulses are needed to comply with different standards or when the shape of the pulses needs to be modified. Two different approaches are described here. Voltage Controlled Delay Line (VCDL) based pulses are first(More)
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