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All-digital 3-50 GHz ultra-wideband pulse generator for short-range wireless interconnect in 40nm CMOS

By: Changhui Hu; Chiang, P.Y.;

2011 / IEEE / 978-1-4577-0223-5

Description

This item was taken from the IEEE Conference ' All-digital 3-50 GHz ultra-wideband pulse generator for short-range wireless interconnect in 40nm CMOS ' A reconfigurable, 3-50GHz all-digital impulse generator for short-distance wireless communications is designed in 40nm-CMOS. Digital back-gate biasing is used for raised-cosine envelope pulse-shaping to achieve better spectral-mask efficiency. Pulse duration, duty-cycle, and operating frequency are digitally programmable, in order to satisfy multi-band standards compatibility. An asymmetric inverter design within the Mono-Pulse-Generator (MPG) eliminates undesired glitches for the complementary clock edge. Occupying 350�m�60�m die area, the proposed impulse transmitter achieves a maximum data-rate of 3Gbps and an energy-efficiency of 0.5pJ/pulse for a 25GHz carrier frequency.