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Design, Analysis and Implementation of Pulse Generator by CMOS Flipped on Glass for Low Power UWB-IR
Parit KANJANAVIROJKUL Nguyen NGOC MAI-KHANH Tetsuya IIZUKA Toru NAKURA Kunihiro ASADA
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2017/01/01
Online ISSN: 1745-1337
Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)
pulse generation, UWB-IR, CMOS, low duty cycle, energy efficiency, flip-chip devices,
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This paper discusses a pulse generator implemented by CMOS flipped on a glass substrate aiming at low power applications with low duty cycle. The pulse generator is theoretically possible to generate a pulse at a frequency near and beyond Fmax. It also features a quick starting time and zero stand-by power. By using a simplified circuit model, analytical expressions for Q factor, energy conversion efficiency, output energy, and oscillation frequency of the pulse generator are derived. Pulse generator prototypes are designed on a 0.18 μm CMOS chip flipped over a transmission line resonator on a glass substrate. Measurement results of two different prototypes confirm the feasibility of the proposed circuit and the analytical model.