IEICE Electronics Express
Online ISSN : 1349-2543
A CMOS wideband LNA with low-loss integrated TX leakage canceller
Ickjin KwonInduck Choi
Author information
JOURNALS FREE ACCESS

2012 Volume 9 Issue 13 Pages 1122-1127

Details
Abstract

A CMOS wideband LNA with tunable and low-loss integrated TX leakage canceller is presented. The low RX insertion loss of the TX leakage canceller is achieved by the autotransformer with loss compensating amplifier. The proposed TX leakage canceller is fabricated in 0.13µm CMOS process. It provides over 55dB rejection of the TX leakage at the RX port and the notch frequency can be controlled from 866MHz to 961MHz using a digitally controlled 4-bit switched capacitor array. The RX insertion loss of the wideband LNA with the TX leakage canceller decreased by 1dB and the NF is decreased about 0.8dB compared to that without the compensating amplifier.

Information related to the author
© 2012 by The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top