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http://dx.doi.org/10.5370/KIEE.2011.60.12.2286

Design of Broad Band RF Components for Partial Discharge Monitoring System  

Lee, Je-Kwang (중앙대 전자전기공학부)
Ko, Jae-Hyeong (중앙대 공대 전자전기공학부)
Kim, Koon-Tae (중앙대 공대 전자전기공학부)
Kim, Hyeong-Seok (중앙대 전자전기공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.12, 2011 , pp. 2286-2292 More about this Journal
Abstract
In this paper we present the design of Low Noise Amplifier(LNA), mixer and filter for RF front-end part of partial discharge monitoring system. The monitoring system of partial discharge in high voltage power machinery is used to prevent many kinds of industrial accidents, and is usually composed of three parts - sensor, RF front-end and digital microcontroller unit. In our study, LNA, mixer and filter are key components of the RF front-end. The LNA consists of common gate and common source-cascaded structure and uses the resistive feedback for broad band matching. A coupled line structure is utilized to implement the filter, of which size is reduced by the meander structure. The mixer is designed using dual gate structure for high isolation between RF and local oscillator signal.
Keywords
Partial discharge; Broad band; LNA; Dual gate mixer; BandPassFilter;
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