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JSSC 2023第3期RF & Wireless40nm

A Wideband Energy-Efficient Multi-Mode CMOS Digital Transmitter

一款适用于多模式/多频段无线通信的宽带高效数字发射机。
40nm CMOS, 0.95V, 23.18-dBm RF峰值功率, 66.26%/52.59%效率
数字发射机多模式能量效率CMOSOFDM
支持多种操作模式(Cartesian和多相位配置)
采用45°相对相位差的非正交基向量映射
简单的无记忆数字预失真技术
Abstract
This article presents a wideband, energy-efficient digital transmitter (DTX) suitable for multi-mode/multi-band wireless communication applications. It features various oper- ation modes comprising Cartesian (Modes-1/-2) and multi-phase (Modes-3/-4) configurations utilizing LO clocks with different duty cycle in the interleaving/non-interleaving configurations. The multi-phase operation compromises polar and Cartesian features by mapping the I/ Q signals into two non-orthogonal basis vectors with a