NDLI: Small-sized rubidium oscillator

Content Provider	IEEE Xplore Digital Library
Author	Suzuki, K. Abe, Y. Ishihara, N. Kudoh, H. Fukugawa, S.
Copyright Year	1998
Description	Author affiliation: NEC Miyagi Ltd., Japan (Suzuki, K.)
Abstract	Demand for a small, extremely steady base frequency source is rising as the result of the miniaturization of communication devices that support ISDN and the development of positioning systems such as GPS. Answering this need, NEC has developed the Rb-5000 rubidium atomic oscillator, a compact, light, and low-consumption oscillator. The Rb-5000 uses an especially miniaturized high-frequency block and cavity design, employing principally the following three new technologies. First, the Rb-5000 uses a small 760 MHz PLL module, eliminating the multiplier conventionally used as a servo circuit. Second, it integrates the frequency generator of the phase modulation block and 5.3 MHz frequency synthesizer, and the control of the 760 MHz PLL module into one chip. Third, the efficiency of the microwave mode is raised by designing a gold-plated printed board as part of the cavity, on which a 6.8 GHz transmission antenna, 6.8 GHz monitor antenna, 9/spl times/ multiplier, and photo detector are formed in a compact design. Through the use of the above-described technologies, the Rb-5000 achieves a size of only 300 cc, a weight of approximately 600 grams, and a power consumption of 8 W, while maintaining almost the same performance level as the previous type rubidium atomic oscillators.
Starting Page	73
Ending Page	79
File Size	373666
Page Count	7
File Format	PDF
ISBN	0780343735
ISSN	10756787
DOI	10.1109/FREQ.1998.717883
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-05-29
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oscillators Phase locked loops Frequency synthesizers Microwave antennas Transmitting antennas ISDN Global Positioning System National electric code Servomechanisms Circuits
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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