An integrated 3.1–5.1 GHz pulse generator for ultra-wideband wireless localization systems

[摘要] This paper presents an implementation of an integratedUltra-wideband (UWB), Binary-Phase Shift Keying (BPSK) Gaussianmodulated pulse generator. VCO, multiplier and passive Gaussianfilter are the key components. The VCO provides the carrierfrequency of 4.1 GHz, the LC Gaussian filter is responsible forthe pulse shaping in the baseband. Multiplying the baseband pulseand the VCO frequency shifts the pulse to the desired centerfrequency. The generated Gaussian pulse ocupppies the frequencyrange from 3.1 to 5.1 GHz with the center frequency at 4.1 GHz.Simulations and measured results show that this spectrum fulfillsthe mask for indoor communication systems given by the FCC(Federal Communications Commission, 2002). The total power consumption is 55 mW using a supplyvoltage of 2.5 V. Circuits are realized using the IHP 0.25 μmSiGe:C BiCMOS technology.

[学科分类] 电子、光学、磁材料