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A wavelet generator (WG) based on simple ultra-wideband impulse radio (UWB-IR) architecture has been developed to use for multi-gigabit communications systems that utilize the W-band millimeter wave (75–110 GHz). The W-band WG radiates a pulse signal, or a wavelet, whose full width at half maximum is less than 80 ps, which makes it possible to realize a 12.5-Gb/s ON/OFF keying transmitter. The WG...
A novel ultra wideband impulse radio architecture for 24 GHz-band short-range radar was developed using 0.13 mum InP-HEMT technology. The transmitter part generates an extremely wide band impulse from a pulse generator and then filters it by using a band pass filter (BPF). The obtained impulse shows a bandwidth of over 40 GHz and achieves flatness in the target band. The power amplifier (PA) for the...
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