NDLI: Energy-Efficient Low-Complexity CMOS Pulse Generator for Multiband UWB Impulse Radio

Content Provider	IEEE Xplore Digital Library
Author	Anh Tuan Phan Jeongseon Lee Krizhanovskii, V. Quan Le Seok-Kyun Han Sang-Gug Lee
Copyright Year	2004
Abstract	This paper presents an energy-efficient low-complexity pulse-generator design technique for multiband impulse-radio ultrawide-band (IR-UWB) system in 0.18-mum CMOS technology. The short pulses are generated based on the on/off switching operation of an oscillator with subband switching functionality, which is mandatory for multiband IR-UWB systems. The relation between the oscillator switching operation and the resulting output pulse envelope, which determines pulse spectral characteristics, is analyzed, and the design guidelines for topology and component values are presented. Measurements show the output pulses with the duration of 3.5 ns, which corresponds to 520-MHz bandwidth. The output pulse spectrum centered at 3.8 GHz fully complies with the Federal Communication Commission spectral mask with more than 25 dB of sidelobe suppression without the need for additional filtering. Thus, the low-complexity pulse generator can maintain its simplicity for low cost with core chip size of 0.3 mm². The pulse generator shows an excellent energy efficiency with average energy dissipation of 16.8 pJ per pulse from 1.5-V supply. The proposed pulse generator is best suited for energy-detection IR-UWB systems.
Sponsorship	IEEE Circuits and Systems Society
Starting Page	3552
Ending Page	3563
Page Count	12
File Size	1951485
File Format	PDF
ISSN	15498328
Volume Number	55
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy efficiency Pulse generation CMOS technology Oscillators Pulse measurements Spectral analysis Guidelines Topology Bandwidth FCC ultrawide-band (UWB) CMOS Federal Communication Commission (FCC) spectral mask impulse radio low power pulse generator transmitter Transmitter Ultra-wideband (UWB) Impulse radio Pulse generator Low power FCC spectral mask
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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