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Single-chip CMOS pulse generator for UWB systems

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9 Author(s)
Smaini, L. ; Adv. Syst. Technol., STMicroelectronics, Geneva ; Tinella, C. ; Helal, D. ; Stoecklin, C.
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This paper presents a single-chip pulse generator developed for Ultra Wide Band (UWB) wireless communication systems based on impulse radio technology. The chip has been integrated in a CMOS 130-nm technology with a single supply voltage of 1.2 V. The basic concept is to combine different delayed edges in order to form a very short duration "logical" pulse, and then filter it, so as to obtain an UWB pulse. It is possible to vary the output pulse shape, and thus the corresponding spectrum, just by acting on the delayed edge combination. Furthermore, the pulse generator supports both position modulation (2-PPM) and polarity modulation (BPSK modulation) in order to convey data through the air. Its power consumption remains less than 10 mW for a raw data rate of up to 160 Mb/s. Spectral and temporal measurements of the single-chip pulse generator are presented with an illustration of the modulation effects on the power spectral density (PSD)

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Solid-State Circuits, IEEE Journal of  (Volume:41 ,  Issue: 7 )