This article presents a wideband millimeter-wave (mmWave) receiver front-end that covers the frequency range from 43 to 97 GHz, supporting the operation in the major parts of the V-, E-, and W-bands. The front-end incorporates a passive mixer-first topology to achieve high linearity and wideband performance. The front-end adopts I/Q generation at the RF port, using a coupled-line coupler (CLC), rather than at the local oscillator (LO) port to mitigate the crosstalk of the overlapping I/Q LO signals especially present at high frequencies. The CLC at the RF input facilitates ultrawide band input matching. The front-end implements the multi-gate gm3 cancellation technique at the IF amplifiers to preserve the linearity and provide gain at the IF section. Image rejection capabilities using a current mode transformer-based IF 90° coupler are implemented on chip and demonstrated with measurements. The front-end prototype is fabricated on the GlobalFoundries 22-nm FD-SOI CMOS process and it demonstrates an ultra-wideband performance across the frequency range 43–97 GHz (2.25:1 bandwidth) with image rejection of up to 32 dB, IIP3 of 1.6–5.2 dBm, and gain of 15 dB. The implementation used is low-IF topology with 3.8-GHz IF frequency and 1-GHz bandwidth. Furthermore, the measurement results show that the front-end supports high-speed modulated signals of up to 6-Gbps 64QAM modulation data.

中文翻译：

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具有正交输入匹配和片上图像抑制功能的43–97 GHz混频器优先前端

本文介绍了一个宽带毫米波（mmWave）接收器前端，它覆盖了从43至97 GHz的频率范围，支持在V波段，E波段和W波段的主要部分中运行。前端采用无源混频器优先拓扑，以实现高线性度和宽带性能。前端使用耦合线耦合器（CLC）在RF端口采用I / Q生成，而不是在本地振荡器（LO）端口采用I / Q生成，以减轻特别是在高电平时出现的重叠I / Q LO信号的串扰。频率。射频输入处的CLC有助于实现超宽带输入匹配。前端在IF放大器上实现了多门gm3抵消技术，以保持线性度并在IF部分提供增益。使用基于电流模式变压器的IF 90°耦合器的镜像抑制功能已在芯片上实现，并通过测量进行了演示。前端原型是在GlobalFoundries 22纳米FD-SOI CMOS工艺上制造的，它展示了在43–97 GHz频率范围（2.25：1带宽）内的超宽带性能，镜像抑制高达32 dB，IIP3 1.6-5.2 dBm的增益和15 dB的增益。所使用的实现是具有3.8 GHz IF频率和1 GHz带宽的低IF拓扑。此外，测量结果表明，前端支持高达6 Gbps 64QAM调制数据的高速调制信号。前端原型是在GlobalFoundries 22纳米FD-SOI CMOS工艺上制造的，它展示了在43–97 GHz频率范围（2.25：1带宽）内的超宽带性能，镜像抑制高达32 dB，IIP3 1.6-5.2 dBm的增益和15 dB的增益。所使用的实现是具有3.8 GHz IF频率和1 GHz带宽的低IF拓扑。此外，测量结果表明，前端支持高达6 Gbps 64QAM调制数据的高速调制信号。前端原型是在GlobalFoundries 22纳米FD-SOI CMOS工艺上制造的，它展示了在43–97 GHz频率范围（2.25：1带宽）内的超宽带性能，镜像抑制高达32 dB，IIP3 1.6-5.2 dBm的增益和15 dB的增益。所使用的实现是具有3.8 GHz IF频率和1 GHz带宽的低IF拓扑。此外，测量结果表明，前端支持高达6 Gbps 64QAM调制数据的高速调制信号。