An innovative mixing unit of the proposed mixer named joint-injection-mixer (JIM) features both wide IF and RF bandwidths (BWs) for next-generation advanced heterodyne receivers of millimeter-wave astronomy. This proposed mixer demonstrates an RF frequency range from 60 to 148 GHz and an IF frequency range from dc to 36 GHz. The dc power consumption of the JIM mixer is 2 mW with LO driving power of 0 dBm. All the measured results are under 0-dBm LO power. The conversion gain (CG) of the JIM mixer is from -8 to -14 dB. The JIM mixer in this work is implemented for fundamental mixing as downconversion. By utilizing the proposed modified Marchand balun with ultrabroad BW, the LO-to-RF isolation of the JIM mixer achieves better than 40 dB from 60 to 140 GHz. The fabricated process for the JIM mixer is the 40-nm CMOS process. The chip sizes, excluding and including pads, are 0.144 and 0.22 mm 2 , respectively. The proposed JIM mixer features the state-of-the-art mixer with the widest IF BW compared with all the prior works. Compared with the present capability of world-leading receivers for radio astronomy, the 36-GHz IF BW of the mixer in this work can construct a next-generation receiver for astronomy to provide received data rate by at least three times.

中文翻译：

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用于毫米波天文学高级外差接收器的创新型联合注入混频器，具有宽带中频和射频


所提出的混频器的创新混频单元名为联合注入混频器（JIM），具有宽中频和射频带宽（BW），适用于毫米波天文学的下一代先进外差接收器。该混频器展示了 60 至 148 GHz 的 RF 频率范围和 dc 至 36 GHz 的 IF 频率范围。 JIM 混频器的直流功耗为 2 mW，LO 驱动功率为 0 dBm。所有测量结果均在 0 dBm LO 功率下进行。 JIM 混频器的转换增益 (CG) 为 -8 至 -14 dB。这项工作中的 JIM 混频器是作为下变频实现基本混频的。通过利用所提出的具有超宽带宽的改进型 Marchand 巴伦，JIM 混频器的 LO 到 RF 隔离在 60 至 140 GHz 范围内达到了 40 dB 以上。 JIM混频器的制造工艺是40纳米CMOS工艺。芯片尺寸（不包括焊盘和包括焊盘）分别为 0.144 和 0.22 mm 2 。与所有先前的作品相比，所提出的 JIM 混频器具有最先进的混频器和最宽的 IF BW。与目前世界领先的射电天文接收机的能力相比，本工作中混频器的36GHz中频带宽可以构建下一代天文接收机，提供至少三倍的接收数据速率。