西安电子科技大学学报（自然科学版）2017，Vol.44Issue(1)：18-23,6.DOI:10.3969/j.issn.1001-2400.2017.01.004
人体信道发射机的非对称偏置线性化技术
Asymmetric biasing linearization technique for the human body communication transmitter
摘要
Abstract
An asymmetric biasing technique for the buffer is presented . Second order distortion at the output of the buffer is cancelled , which can be used in the human body communication ( HBC) transmitter to shape the output spectrum . Realized by active resistors , asymmetric biasing applied to the gate of MOS transistors adjusts the second order nonlinearity coefficient of transistors so that the second order intermodulation products at the output of the buffer are cancelled . Designed in 0.35μm CM OS process and under a supply voltage of 1.8 V , an HBC transmitter is designed . Simulation results show that IIP 2 of the single‐ended output buffer is optimized to 84 dBm and that the transmitter output spectrum at 1 M Hz is attenuated to -127 dBr , which meets the -120 dBr requirement of the IEEE 802.15.6 standard .关键词
集成电路/线性度/二阶互调/发射机/IEEE 802.15.6Key words
integrated circuits/linearity/second-order intermodulation/transmitter/IEEE 802.15.6分类
信息技术与安全科学引用本文复制引用
柳扬,杨银堂,李迪,石佐辰..人体信道发射机的非对称偏置线性化技术[J].西安电子科技大学学报（自然科学版）,2017,44(1):18-23,6.基金项目
国家自然科学基金资助项目 （）
