A four-antenna receiver in 90-nm CMOS for beamforming and spatial diversity
- 5 December 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 40 (12) , 2515-2524
- https://doi.org/10.1109/jssc.2005.857416
Abstract
A fully integrated four-channel multi-antenna receiver intended for beamforming and spatial diversity applications is presented. It can also be used as a low-power area-efficient range extender for spatially multiplexed multi-antenna systems that are poised to become mainstream in the near future. Implemented in a 90-nm CMOS technology, each channel weights its input signal by a complex weight with full 360/spl deg/ phase shift programmability using vector combinations of variable-gain amplifiers, thus obviating the need for expensive phase shifters. The chip consumes 140 mW from a single 1.4-V supply and achieves 12 dB of array gain with all four channels activated and >20 dB direction-of-arrival-dependent interference rejection.Keywords
This publication has 15 references indexed in Scilit:
- A 24GHz phased-array transmitter in 0.18μm CMOSPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A 1.4v 5GHz four-antenna cartesiancombining receiver in 90nm CMOS for beamforming and spatial diversity applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A low-loss phase shifter in 180 nm CMOS for multiple-antenna receiversPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- A four-input beam-forming downconverter for adaptive antennasIEEE Journal of Solid-State Circuits, 2003
- A 90 nm communication technology featuring SiGe HBT transistors, RF CMOS, precision R-L-C RF elements and 1 μm/sup 2/ 6-T SRAM cellPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Linear diversity combining techniquesProceedings of the IEEE, 2003
- Layered space-time architecture for wireless communication in a fading environment when using multi-element antennasBell Labs Technical Journal, 2002
- Capacity of Multi‐antenna Gaussian ChannelsEuropean Transactions on Telecommunications, 1999
- A comparison of quadrature and single-channel receiver processing in adaptive beamformingIEEE Transactions on Antennas and Propagation, 1977
- Adaptive antenna systemsProceedings of the IEEE, 1967