An Ultra-Wideband Image-Reject Up-Conversion Mixer With a Sandwich-Coupled Transformer for 5G mm-Wave Communication

IF 2.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Microwave and Wireless Components Letters Pub Date : 2022-09-01 DOI:10.1109/LMWC.2022.3163788

Kejie Hu, Kaixue Ma, Zonglin Ma

引用次数: 2

Abstract

This letter presents an ultra-wideband 20–42 GHz image-reject up-conversion mixer with low dc-power consumption implemented in 55 nm CMOS technology for multiband mm-Wave 5G systems. A sandwich-coupled transformer (SCT) is adopted to expand the operation bandwidth. The proposed SCT demonstrates good performance in enhancing the coupling coefficient and quality factor, which enables wideband impedance matching. Moreover, a quadrature signal generator composed of a transformer and a polyphase filter (PPF) is utilized to generate wideband high-precision I/Q signals without any calibration. With only 24 mW dc-power consumption, the mixer exhibits excellent conversion gain flatness of 1.2±1.5 dB from 20 to 42 GHz. The measured image reject ratio (IRR) is better than −30 dBc within the entire operation band. The measured output 1-dB compression point (OP1 dB) is −2.57 dBm at 28 GHz and −3.96 dBm at 38 GHz. The proposed mixer exhibits good broadband characteristics, which can sustain multiband operation.

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一种用于5G毫米波通信的带三明治耦合变压器的超宽带图像抑制上转换混频器

这封信介绍了一种超宽带20–42 GHz图像抑制上变频混频器，该混频器采用55 nm CMOS技术，用于多频带毫米波5G系统，具有低直流功耗。采用三明治耦合变压器（SCT）来扩展工作带宽。所提出的SCT在提高耦合系数和品质因数方面表现出良好的性能，从而实现了宽带阻抗匹配。此外，利用由变压器和多相滤波器（PPF）组成的正交信号发生器来生成宽带高精度I/Q信号，而无需任何校准。在仅消耗24mW直流功率的情况下，混频器在20至42GHz范围内表现出1.2±1.5dB的出色转换增益平坦度。在整个操作频带内，测量的图像抑制率（IRR）优于−30 dBc。测得的输出1-dB压缩点（OP1 dB）在28 GHz时为-2.57 dBm，在38 GHz时为-3.96 dBm。所提出的混频器具有良好的宽带特性，可以维持多频带操作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Microwave and Wireless Components Letters 工程技术-工程：电子与电气

自引率

13.30%

发文量

376

审稿时长

3.0 months

期刊介绍： The IEEE Microwave and Wireless Components Letters (MWCL) publishes four-page papers (3 pages of text + up to 1 page of references) that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, medical and industrial activities. Microwave theory and techniques relates to electromagnetic waves in the frequency range of a few MHz and a THz; other spectral regions and wave types are included within the scope of the MWCL whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design.