Title :
A 1.4V 5GHz four-antenna Cartesian-combining receiver in 90nm CMOS for beamforming and spatial diversity applications
Author :
Paramesh, Jeyanandh ; Bishop, Ralph ; Soumyanath, K. ; Allstot, David
Author_Institution :
Intel Corp., Hillsboro, OR, USA
Abstract :
A 90nm CMOS four-channel analog beamforming receiver draws 140mW at 1.4V and achieves 6dB SNR improvement with 360° 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.
Keywords :
CMOS integrated circuits; array signal processing; diversity reception; interference suppression; programmable circuits; radio receivers; 1.4 V; 140 mW; 5 GHz; 90 nm; CMOS; analog beamforming receiver; four-antenna Cartesian-combining receiver; interference cancellation; look-angle coverage; low-power range extender; programmable gain elements; spatial diversity; spatial-multiplexing MIMO; vector combinations; Antenna measurements; Array signal processing; Interference cancellation; Prototypes; Radio frequency; Receiving antennas; Semiconductor device measurement; Topology; Transformers; Transmitting antennas;
Conference_Titel :
Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8904-2
DOI :
10.1109/ISSCC.2005.1493943
