论文信息 - A 1.4V 5GHz four-antenna Cartesian-combining receiver in 90nm CMOS for beamforming and spatial diversity applications

A 1.4V 5GHz four-antenna Cartesian-combining receiver in 90nm CMOS for beamforming and spatial diversity applications

A 90nm CMOS four-channel analog beamforming receiver draws 140mW at 1.4V and achieves 6dB SNR improvement with 360/spl deg/ look-angle coverage and 20dB interference cancellation. Vector combinations of programmable gain elements eliminate the need for explicit phase shifters. The analog combining technique is also useful as a low-power range extender/interference canceller in conjunction with spatial-multiplexing MIMO.

J. Paramesh | R. Bishop | K. Soumyanath | D. Allstot

[1] D.J. Allstot,et al. A low-loss phase shifter in 180 nm CMOS for multiple-antenna receivers , 2004, 2004 IEEE International Solid-State Circuits Conference (IEEE Cat. No.04CH37519).

[2] A. Murthy,et al. A 90 nm communication technology featuring SiGe HBT transistors, RF CMOS, precision R-L-C RF elements and 1 /spl mu/m2 6-T SRAM cell , 2002, Digest. International Electron Devices Meeting,.

[3] H. Hashemi,et al. A fully integrated 24 GHz 8-path phased-array receiver in silicon , 2004, 2004 IEEE International Solid-State Circuits Conference (IEEE Cat. No.04CH37519).