An E-band Double-Balanced Subharmonic Mixer With High Conversion Gain and Low Power in 90-nm CMOS Process

作者：Wu Yi Ching; Wang Huei^*

来源：IEEE Microwave and Wireless Components Letters, 2018, 28(1): 70-72.

DOI：10.1109/LMWC.2017.2779847

• Conversion gain (CG)
• double-balanced
• low local oscillator (LO) power
• mixer
• subharmonic
• transformer

In this letter, an E-band double-balanced subharmonic down conversion mixer is presented. The proposed mixer demonstrates a conversion gain (CG) of 5.3 similar to 9 dB at RF frequencies 70-88 GHz under local oscillator (LO) power -4 dBm. The input 1-dB compression power (IP 1dB) and the input third-order intercept point (IIP3) at RF frequency of 77 GHz are -13 and -3 dBm, respectively. The 2LO-to-RF isolations of RF frequencies 70-88 GHz are all better than 40 dB. The overall dc power consumption (dc bias with injecting LO power) is 5 mW. The mixer is fabricated in a TSMC 90-nm CMOS process and it occupies an area of 0.3195 mm(2). By applying weak-inversion region to generate subharmonic mixing function and with the combination of LO gate-pumped operation and source-pumped operation, this proposed mixer achieves high CG and low LO power with low dc power consumption among the published subharmonic mixers.

• 出版日期2018-1