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

fYear

2005

Firstpage

210

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

0-7803-8904-2

Type

conf

DOI

10.1109/ISSCC.2005.1493943

Filename

1493943