← 返回 JSSC 论文列表JSSC 2019第11期RF & Wireless180nm SiGe BiCMOSDAC
Analysis and Design of High-Order QAM Direct-Modulation Transmitter for High-Spe
提出一种新型高速无线发射机架构，通过叠加多路QPSK信号实现高阶QAM调制，避免使用高速DAC。
115GHz载频, 20Gb/s, EVM -15.8dB, +1dBm输出功率, 520mW功耗
高阶QAM直接调制无线发射机毫米波SiGe BiCMOS
▸采用多路QPSK信号叠加实现高阶QAM直接调制
▸完全规避传统发射机中的高速DAC
▸115GHz载频下实现20Gb/s数据传输
Abstract
A novel high-speed wireless transmitter (TX) archi-
tecture is presented that directly transforms incoming data bits
into high-order 4 M -quadrature amplitude modulation (QAM)
constellation by adding multiple quadrature phase shift key-
ing (QPSK) signals with appropriate amplitude ratios. The costly
high-speed digital-to-analog converters (DACs) in conventional
TXs are thus completely avoided, resulting in a highly integrated
solution amenable to ultra-high speeds and operating frequencies.
Des