Title :
Evaluation of CMOS power amplifier for millimeter super broadband wireless systems with beam forming antenna
Author :
Nakase, Hiroyuki ; Kato, Shuzo
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
Si CMOS power amplifier based on source common circuit for millimeter wave super broadband wireless systems using beam forming antenna has been designed. Requirement of output power of each beam forming antenna elements can be reduced to less than 3dBm because of power combining at the air after radiation. Instead of reduction of output power requirement, power added efficiency (PAE) has been improved in our design. Maximum PAE of 18.3% and PAE at operation point of 15.9% have been achieved by simulation. Measured PAE has been evaluated to be 12.5% at the operation point. AM-AM and AM-PM conversion of designed power amplifier has been modeled using modified Rapp model for system simulation. Degradation of Eb/N0 at bit error rate of 10-3 using QPSK has been evaluated to be less than 0.5 dB considering with AM-AM and AM-PM conversion.
Keywords :
CMOS integrated circuits; antenna radiation patterns; array signal processing; elemental semiconductors; error statistics; field effect MIMIC; millimetre wave antennas; millimetre wave power amplifiers; quadrature phase shift keying; silicon; AM-AM conversion; AM-PM conversion; QPSK; Rapp model; Si; Si CMOS power amplifier; beam forming antenna; bit error rate; millimeter super broadband wireless systems; source common circuit; Bit error rate; Broadband antennas; CMOS integrated circuits; Gain; Power amplifiers; Power generation; Ceramics; coaxial resonators; delay filters; delay-lines; power amplifiers;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
