Abstract
In this paper an impulse radio UWB transmitter and receiver IC for precision localization sensor network at longer ranges is presented. Fabricated from a commercial low cost 2 µ m GaAs HBT technology, the transmitter features high output peak power, high efficiency at a low power consumption. A variable output peak power up to 20 dBm is measured with a total power consumption of 15 mW. The receiver uses non-coherent detection and has a variable front-end conversion gain up to 35 dB and a tangential signal sensitivity (TSS) of −65 dBm. Sensor network constructed with the chips shows a localization error within 10 cm covering a 100 × 100 m2 area.
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