← 返回 JSSC 论文列表JSSC 2013第5期RF & Wireless0.13µm
A 2.4 GHz Hybrid Polyphase Filter Based BFSK Receiver With High Frequency Offset Tolerance for Wireless
一种基于混合多相滤波器的24 GHz BFSK接收器，具有高频偏容忍度和低功耗特性。
0.13-µm CMOS, 1V, 1.97mW, 1Mb/s, -84dBm灵敏度, 450kHz频偏容忍度, 40dB相邻信道抑制比
多相滤波器BFSK接收器频偏容忍度低功耗无线传感器网络
▸采用多相滤波器实现频率到能量的转换架构，无需频率校正电路
▸通过多相滤波器同时实现信道选择和干扰抑制，无需额外硬件和功耗
▸混合拓扑结构的多相滤波器在降低功耗的同时提高了相邻信道抑制比
Abstract
A low power 2.4 GHz hybrid polyphase filter (PPF) based BFSK receiver with high frequency offset tolerance (FOT) at small modulation indexes (MIs) is presented for medium data rate wireless sensor network a pplications. A high FOT at low MI is achieved by a frequency-to-energy conversion architecture using PPFs without any frequency c orrection circuits. Channel selection and interference reject ion are performed simultaneously by the PPFs without any extra ha rdware and power consumption. Furthermore, the proposed hybrid topology of the PPFs provides an improved adjacent channel rejection (ACR) at reduced power. The prototype receiver fabricated in a 0.13-µm CMOS process , including the RF and analog front-ends, consumes 1.97 mW from a 1 V supply. With a data rate of 1 Mb/s, a sensitivity of –84 dBm, a FOT of 450 kHz ( 180 ppm), and an ACR of 40 dB are achieved for a MI of 2.