具有Gbps数据链路的20-43 GHz低噪声GaAs下变频器，用于全5G K/ ka波段回程

2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2020-09-01 DOI:10.1109/RFIT49453.2020.9226248

Chun-Nien Chen, Tai-Yu Kuo, Huei Wang

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引用次数: 0

摘要

介绍了一种20-43 GHz的下变频器，具有宽中频波宽、低噪声和良好信噪比的gbps数据链路。单平衡(SB-)下变频器采用无源冷偏混频级和差分共源(CS-)场效应管$g_{\ mathm {m}}$级，实现宽射频/中频BW、高隔离、低噪声系数(NF)和低LO驱动。连续波(CW)测试显示，在平坦的转换增益(CG)下，RF BW为20-43 GHz，中频BW为0.1-6 GHz，单边带(SSB) NF为6.2-9.7 dB。在24/28/39 GHz的5G K/ ka频段，GHz- bw QAM载波下转换测试显示数据速率为8 - 15gbps, QAM为64/256。具有Gbps数据链路能力的宽带下变频器可用于全5G K/ ka频段的高速回程通信。

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A 20-43 GHz Low Noise GaAs Downconverter with Gbps Data-Links for Full 5G K/Ka-Band Backhauls

A 20–43 GHz downconverter with wide IF BW, low noise, and Gbps-data links with good SNR is introduced for the superheterodyne Rx of 5G backhauls. The single-balanced (SB-) downconverter adopts passive cold-bias mixing stage and differential common-source (CS-) FETs $g_{\mathrm{m}}$ stage to achieve wide RF/IF BW, high isolations, and low noise figure (NF) with low LO drive. Continuous wave (CW) tests show RF BW of 20–43 GHz and IF BW of 0.1-6 GHz with flat conversion gain (CG), and 6.2-9.7 dB single-sideband (SSB) NF. The GHz-BW QAM carrier down-conversion tests present 8–15 Gbps data rate with 64/256 QAM in 5G K/Ka-band of 24/28/39 GHz. The wideband downconverter with Gbps data-link capability can be utilized for high-speed backhauls communication in full 5G K/Ka-bands.

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2020 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

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