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JSSC 2013第7期RF & Wireless0.18μm

A 24-GHz MEMS-Based PLL-Free Multi-Channel Receiver With Channel Filtering at RF

提出了一种基于BAW谐振器的2.4GHz低功耗接收器,无需PLL即可实现多通道选择。
0.18μm CMOS, 1.8V, 5.94mA
BAW谐振器多通道接收器无PLL信道滤波器低功耗
利用BAW谐振器的高Q值实现射频通道选择
采用整数分频器和BAW DCO实现多通道频率合成
提出BAW伪晶格结构提高信道滤波器对无用信号的抑制
Abstract
A Bulk Acoustic Wave (BA W) resonator based 2.4-GHz low power receiver is presented in this work. The in- trinsic high quality factor ( ) of the BA W resonator (around 400 at 2.4-GHz) is exploited to provide channel selection at RF and in the frequency synthesis. A novel way of addressing multiple channels (arbitrary frequency) using integer dividers and a BA W digitally controlled oscillator (DCO) and thus avoiding the need for a PLL is proposed in this work. To the best of our knowledge, this