Developing Energy-Efficient MIMO Radios

Shifting spatial signal processing in multiantenna systems from the digital base band to the RF front-end allows the development of energy efficient (green) MIMO radios. An integrated transceiver using RF-MIMO is designed in 0.25 mum SiGe technology together with a four-element antenna array. Low correlation between the antennas was achieved by using different diversity techniques and by optimizin...