SiGe HBT技术中220-260 GHz LO可调谐BPSK/QPSK无线链路的性能评估

J. Grzyb, P. R. Vazquez, N. Sarmah, B. Heinemann, U. Pfeiffer
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引用次数: 6

摘要

本文报道了采用0.13μm SiGe HBT技术实现的高集成直接转换正交TX/RX模块的1 m 220-260 GHz可调谐载波无线链路的特性和性能评估,ft/fmax为350/550 GHz。在15 GHz的中频带宽限制下,BPSK/QPSK调制方案实现的最大数据速率分别为35 Gbps和65 Gbps, EVM分别为28.9%和31.5%。进一步发现,当前链路性能不受awn相关信噪比的限制,而主要受大操作带宽相关射频前端缺陷的影响。
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Performance Evaluation of a 220–260 GHz LO Tunable BPSK/QPSK Wireless Link in SiGe HBT Technology
This paper reports on characterization and performance evaluation of a 1-m 220–260 GHz tunable carrier wireless link with highly-integrated direct-conversion quadrature TX/RX modules implemented in 0.13μm SiGe HBT technology with ft/fmax of 350/550 GHz. Under limited IF bandwidth constraints of 15 GHz, the maximum achieved data rates for BPSK/QPSK modulation schemes are 35 Gbps with an EVM of 28.9 % and 65 Gbps with an EVM of 31.5 %, respectively. It is further found that the current link performance is not limited by the AWGN-related SNR but mainly affected by the RF front-end imperfections related to large operation bandwidth.
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