| Title |
Design of Broad Band RF Components for Partial Discharge Monitoring System |
| Authors |
이제광(Lee, Je-Kwang) ; 고재형(Ko, Jae-Hyeong) ; 김군태(Kim, Koon-Tae) ; 김형석(Kim, Hyeong-Seok) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.12.2286 |
| Keywords |
Partial discharge ; Broad band ; LNA ; Dual gate mixer ; BandPassFilter |
| 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. |