The Design of Low LO-Power 60-GHz CMOS Quadrature-Balanced Self-Switching Current-Mode Mixer

This letter describes the analysis and measurement of a complementary metal-oxide semiconductor (CMOS) quadrature-balanced current-mode mixer with a 90deg branch-line hybrid coupler and self-switching current-mode devices. The proposed mixer, using 0.13 mum 1P8M CMOS technology, can downconvert a 60 GHz RF signal to a 2 GHz intermediate frequency (IF) signal, with a local-oscillator power of 0 dBm at 58 GHz. In the design, the mixer had a single-end conversion gain of 1 dB and an input-referred 1 dB compression point of 2 dBm. The LO-RF isolation of the mixer can achieve -37 dB while using 3 mA from a supply voltage of 1.2 V.

[1]  Masahiro Muraguchi,et al.  Reduced-size branch-line and rat-race hybrids for uniplanar MMIC's , 1990 .

[2]  B. Razavi,et al.  A 60-GHz CMOS receiver front-end , 2006, IEEE Journal of Solid-State Circuits.

[3]  K. Kojima,et al.  A 1 V 2 GHz CMOS up-converter using self-switching mixers , 2002, 2002 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.02CH37315).

[4]  Stephen A. Maas,et al.  The RF and microwave circuit design cookbook , 1998 .

[5]  R.W. Brodersen,et al.  A 60-GHz down-converting CMOS single-gate mixer , 2005, 2005 IEEE Radio Frequency integrated Circuits (RFIC) Symposium - Digest of Papers.

[6]  S.E. Gunnarsson,et al.  Fully integrated 60-GHz single-ended resistive mixer in 90-nm CMOS technology , 2006, IEEE Microwave and Wireless Components Letters.