NDLI: NRD guide pulse radar front-end for level sensor applications at 60 GHz

Content Provider	IEEE Xplore Digital Library
Author	Kuroki, F. Yamaoka, K. Murata, Y. Yoneyama, T.
Copyright Year	2005
Description	Author affiliation: Kure Nat. Coll. of Technol., Japan (Kuroki, F.; Yamaoka, K.; Murata, Y.)
Abstract	An NRD guide pulse radar front-end was fabricated for level sensor applications at 60GHz. Main emphasis was placed on circuit configuration. Typically, an oscillation power is divided by a junction circuit and is introduced into two parts. One is for transmitter, and the other is for LO wave to construct hetero-dyne detection in receiver. And the frequency of the former is up-converted so as to be different from the frequency of the LO wave, and thus, an amplifier is installed in the transmitting side due to low power of the up-converted millimeter-wave. In this paper, we proposed a new circuit configuration, which consists of a Gunn oscillator with two output ports to eliminate a junction circuit, a direct pulse-modulator to obtain a high level transmitting power without an expensive millimeter-wave amplifier, and a filter-based down-converter with an up-converter as a local oscillator. A maximum sensing distance was found to be 120 m, while that was estimated to be 42 m in the typical pulse radar without an amplifier, and thus the high performance of the proposed radar was confirmed.
File Size	255228
File Format	PDF
ISBN	2960055128
DOI	10.1109/EUMC.2005.1608924
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-04
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOCIATION
Subject Keyword	Radar applications Level control Pulse amplifiers Frequency Millimeter wave circuits Millimeter wave radar Local oscillators Transmitters Radar detection Gunn devices
Content Type	Text
Resource Type	Article

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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
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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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