Title :
An OFDM MIMO Transmitter for Wireless Gigabit with Advanced Multimedia (WIGWAM)
Author :
Simon, Martin ; Winter, Sebastian ; Klepser, Ulrich ; Weigel, Robert
Author_Institution :
Univ. ofErlangen-Nuremberg, Erlangen
Abstract :
A fully integrated high linearity low power and low cost transmitter in 120 nm CMOS technology with 2 RF-paths and integrated balun for broadband OFDM MIMO application is presented. The transmitter is used for the Wireless Gigabit with Advanced Multimedia (WIGWAM) research project. A maximum datarate of 970 Mbit/s can be achieved by transmitting a 256QAM OFDM MIMO signal with 80 MHz bandwidth and 7/8 code rate. The Error Vector Magnitude is only -28 dB due to low phase noise and high linearity. The RF coupling between the 2 MIMO TX paths is 32 dB. The carrier and sideband of the vector modulator are calibrated with an integrated down-conversion mixer.
Keywords :
CMOS integrated circuits; MIMO communication; OFDM modulation; broadband networks; low-power electronics; multimedia communication; quadrature amplitude modulation; radio transmitters; CMOS technology; OFDM MIMO transmitter; broadband OFDM MIMO application; error vector magnitude; integrated down-conversion mixer; low power electronics; size 120 nm; wireless gigabit with advanced multimedia; Bandwidth; CMOS technology; Costs; Impedance matching; Linearity; MIMO; OFDM; Phase noise; Radio frequency; Transmitters;
Conference_Titel :
Wireless Technologies, 2007 European Conference on
Conference_Location :
Munich
Print_ISBN :
978-2-87487-003-3
DOI :
10.1109/ECWT.2007.4403964
