IR-UWB Pulse Synthesizer Based on a Sample & Hold Envelope Shaping Circuit
Résumé
This paper presents an ultra-wideband impulse radio pulse synthesizer circuit based on a gated voltagecontrolled oscillator and an envelope shaping circuit, which deploys a sample & hold envelope synthesis. The envelope shaping circuit is mainly composed by parallel shift registers loaded in a parallel manner. The use of a sample & hold envelope enables the reduction of circuit complexity, size area and leakage power. The pulse synthesizer is designed in FD-SOI 28 nm CMOS technology with a supply voltage of 1 V. It can be programmed to address all the IEEE 802.15.4 standardized channels and respects the FCC indoor spectrum requirements. Moreover, it can be turned-on and turned-off which allows to generate nanosecond pulses, where the generated pulse amplitude, central frequency, width, and repetition frequency can be tuned.
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