Abstract—The design of a differential K-band UWB (Ultra Wideband) Short Range Radar (SRR) transmitter in 90 nm bulk CMOS is presented. Implementation of SRRs in deep submicron CMOS technology is attractive, in terms of cost and monolithic integration of RF font-end with signal baseband processor. The transmitted pulse bandwidth limits the range resolution of the radar system. Due to the wide ba...

We use renormalization group (RG) techniques to prove the nonlinear asymptotic stability for the semistrong regime of two-pulse interactions in a regularized Gierer–Meinhardt system. In the semistrong limit the localized activator pulses interact strongly through the slowly varying inhibitor. The interaction is not tail-tail as in the weak interaction limit, and the pulse amplitudes and speeds ...