Very small inductorless 2nd derivative Gaussian IR-UWB transmitter module using n/p-latches as PDs

摘要

In this paper, a new design for an impulse radar Ultra-wideband (UWB) module transmitter using a 180 nm CMOS TSMC process is presented. A 2nd order derivative Gaussian pulse is generated using two phase detectors, which consist of an n-latch and a p-latch to generate a single UWB pulse without any filtering and matches the FCC mask. The Gaussian impulse achieves a very small pulse of 259 ps width, similar to 104 mVpp amplitude, and consumes about 23.3 A mu W/pulse. The circuit occupies only 36 x 42 mu m(2) without PADs.