A fully integrated Q-enhanced LC filter with 6 dB noise figure at 2.5 GHz in SOI

摘要

Q-enhanced LC filter technology offers a promising approach to remove the off-chip preselect filter still required in current transceivers. To date, previous designs fail to meet the stringent system specifications such as dynamic range and noise figure for existing wireless receivers. This paper presents an innovative prototype design targeted at Bluetooth in silicon-on-insulator (SOI) process. Drawing 5 mA from a 3 V supply, it achieves 17 dB voltage gain, approximately 6 dB noise figure, 153 dB 1-dB compression point dynamic range relative to 1 Hz bandwidth, and 70 MHz bandwidth at 2.5 GHz, suitable for industry applications.