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This paper presents the design and characterization of an ultra wideband FMCW radar sensor. The radar frontend consists of transmitter and receiver chips in SiGe BiCMOS technology with on-chip antennas. Both chips share the same reference chirp signal, multiplied 8 times to the desired operation band. The radar frontend demonstrates a bandwidth of 56.8 GHz from 104.4 GHz to 161.2 GHz, which corresponds...
In this paper a compact and low-power IR-UWB transmitter is presented. The transmitter is based on a cross-coupled LC oscillator core which is transiently turned on and off by current spikes generated on-chip. A simple phase control circuit enables biphase modulation by controlling the start-up phase condition of the oscillator. The UWB transmitter has a low power consumption of 9.8 mW when biphase...
Recent regulatory action provided access to large chunks of spectrum for low spectral power density ultra-wideband communication and sensing devices, yet use of this spectrum currently lags behind expectations. The authors propose a simple migration path suitable for low-cost analog audio and video distribution. It uses FM modulation of the clock signal to an impulse radio pulse generator and a simple...
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