JSSC 2024第10期RF & Wireless28nmDACEqualizer

A Fully Integrated QPSK16-QAM D-Band CMOS Transceiver With Mixed-Signal Baseband

一款基于28nm CMOS工艺的全集成D波段收发器，支持QPSK和16-QAM调制，具有混合信号基带处理能力。

28nm CMOS, 24-Gb/s QPSK, 48-Gb/s 16-QAM, TX带宽21 GHz, RX带宽18 GHz, TX Psat 13.1 dBm, TX OP 1 dB 7.5 dBm, RX NF 9.3 dB

D波段CMOS收发器QPSK16-QAM混合信号基带

▸采用混合匹配技术的D波段射频前端

▸嵌入式四抽头FIR滤波器的Cartesian RF-DAC

▸包含ADPLL和LO分配网络的本地振荡器

Abstract

This work presents a fully integrated D-band transceiver (TRX) in 28-nm CMOS. The system architec- ture introduces a radio-frequency digital-to-analog converter (RF-DAC) and the complete mixed-signal baseband (BB) cir- cuitry, including the equalizer, realizing fully digital BB interfaces at 24-Gb/s quadrature phase shift keying (QPSK) and 48-Gb/s 16-quadrature amplitude modulation (16-QAM). Innovations at the circuit level encompass: 1) the D-band RF front end (FE) using the proposed hybrid mat