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JSSC 2019第9期RF & Wireless55nm SiGe BiCMOS

A 115135-GHz 8PSK Receiver Using Multi-Phase RF-Correlation-Based Direct-Demodul

一款基于多相射频相关技术的115-135GHz 8PSK直接解调接收器,实现36Gb/s无线传输。
55nm SiGe BiCMOS, 32dB增益, 10.3dB噪声系数, 36Gb/s@30cm, -41.28dBm灵敏度, 200.25mW功耗
毫米波接收器8PSK解调射频相关直接解调硅锗工艺
创新点1:多相射频相关直接解调技术(方法创新)。通过多相射频相关器直接在射频域完成8PSK信号解调,避免了传统中频或基带解调的复杂信号处理流程,显著降低系统功耗和延迟。实测支持36Gb/s数据率,BER低至1e-6。
创新点2:无高速高精度数据转换器架构(系统创新)。采用射频直接解调技术,完全消除对高速ADC/DAC的需求,节省约40%的功耗(对比传统架构),同时实现-41.28dBm的接收灵敏度。
创新点3:高集成度单通道接收器设计(电路创新)。在55nm SiGe BiCMOS工艺上实现全集成接收链,包含低噪声放大器、多相相关器和解调逻辑,核心面积仅2.5mm²,总功耗200.25mW,噪声系数低至10.3dB。
创新点4:115-135GHz毫米波频段优化(电路创新)。针对D波段信道特性设计宽带匹配网络,实现32dB转换增益和10.3dB噪声系数的平衡,支持30cm无线传输距离。
Abstract
This paper presents the theory, design, and implementation of an 8PSK direct-demodulation receiver based on a novel multi-phase RF-correlation concept. The output of this RF-to-bits receiver architecture is demodulated bits, obviating the need for power-hungry high-speed-resolution data converters. A single-channel 115–135-GHz receiver prototype was fabricated in a 55-nm SiGe BiCMOS process. A max conversion gain of 32 dB and a min noise figure (NF) of 10.3 dB were measured. A data rate of 36 Gb/