標題: An active guarding circuit for giga-hertz substrate noise suppression
作者: Chao, Hao-Ming
Wang, Chien-Lung
Wuen, Wen-Shen
Wen, Kuei-Ann
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2007
摘要: This paper presents an active guarding circuit employing noise decoupling and inversion feedback for substrate noise suppression in high frequency up to GHz. Proposed inversion feedback circuit can efficiently suppress substrate noise up to GHz range by introducing a zero within an amplitude controller. The noise decoupling circuit not only provides a decoupling path, but also senses the noise level for the amplitude controller to perform noise cancellation. By applying the proposed active guarding circuit, the noise suppression of passive guard ring can be improved more than 14dB in the frequency range from DC to 1GHz and 7.2dB up to 5GHz. For 1dB degradation of noise suppression performance, the input noise level can be up to 90mV at 1MHz and 86mV at 1GHz, respectively.
URI: http://hdl.handle.net/11536/6702
ISBN: 978-2-87487-002-6
期刊: 2007 EUROPEAN MICROWAVE INTEGRATED CIRCUITS CONFERENCE, VOLS 1 AND 2
起始頁: 209
結束頁: 212
顯示於類別:會議論文