A 1.2 V, 0.87-3.7 GHz Wideband Low-Noise Mixer Using a Current Mirror for Multiband Application

作者：Na DaeHoon^*; Kim Tae Wook

来源：IEEE Microwave and Wireless Components Letters, 2012, 22(2): 91-93.

DOI：10.1109/LMWC.2011.2182186

• CMOS mixer
• current mirror

A low-noise, ultra-wideband (UWB) mixer using a current mirror is proposed for multiband applications. The proposed mixer combines the advantages of both a passive mixer and an active mixer such as a low noise figure, low supply voltage operation, and high gain as well as wideband operation by switching the mirroring node of the current mirror. Moreover, the characteristic of wideband operation of the current mirror allows UWB operation. The proposed mixer operates from 870 MHz to 3.7 GHz. The fully integrated UWB mixer is fabricated in 0.13 mu m CMOS technology with IIP3 of -13 similar to -10 dBm, gain of 13.5 similar to 14 dB, and noise figure of 2.9 similar to 6.5 dB. It consumes 16.8 mW of power with a supply voltage of 1.2 V in the band from 870 MHz to 3.7 GHz.

• 出版日期2012-2