A Low-Power Adaptive Receiver Utilizing Discrete-Time Spectrum-Sensing

作者：Lin David T^*; Chae Hyungil; Li Li; Flynn Michael P

来源：IEEE Transactions on Microwave Theory and Techniques, 2013, 61(3): 1338-1346.

DOI：10.1109/TMTT.2013.2243747

• Discrete-time (DT) filter
• spectrum-sensing (SS)
• wireless receiver

A flexible spectrum-sensing receiver in 65-nm CMOS consists of a wideband front-end spectrum-adaptive (SA) filtering, switched-capacitor amplifiers, and a filtering specific absorption rate ADC. The SA filter uses a discrete-time (DT) spectrum-analyzer and a reconfigurable DT notch filter to detect and suppress strong interferers over a 55-MHz range. In IEEE 802.15.4 tests, the receiver exceeds sensitivity and interferer rejection requirements. With SA filtering enabled, it achieves >=+55-dB rejection from +25-to +65-MHz FM interferers.

• 出版日期2013-3