A multiple input multiple output transceiver compliant with IEEE 802.11a/b/g and Japan wireless LAN standards is presented. The transceiver has two complete radio paths integrated on the same chip. When two chips are used in tandem to form a four path composite beam forming system, 15dB of link margin improvement is obtained. The transceiver was implemented in a 47GHz SiGe technology and consumes 195mA in RX mode and 240mA in TX mode from a 2.75V supply.

2005 Symposium on VLSI Circuits
Carleton University

Rogers, J, Rahn, D.G. (Dave G.), Cavin, M.S. (Mark S.), Dai, F.F. (Foster F.), Fong, N. (Neric), Griffith, R. (Richard), … Toner, M. (Mike). (2005). A fully integrated multi-band MIMO WLAN transceiver RFIC. Presented at the 2005 Symposium on VLSI Circuits. doi:10.1109/VLSIC.2005.1469388