Comparison between quadrature- and polar-modulation switching-mode transmitter with pulse-density modulation

This paper presents the performance of the quadrature modulation (QM) transmitter when compared with the (PM) transmitter. So as to evaluate the substantive power efficiency in both transmitters, the effective demodulation power efficiency (EDPE) is proposed as a novel figure of merit for transmitters. Computer simulation reveals that the EDPE for a QM transmitter is lower than that for a PM transmitter. In addition, D/U for a QM transmitter is higher than the one for PM transmitter due to lower quantization noise. As a result, the EVMs for a QM transmitter is higher than the one for a PM transmitter.

[1]  Lawrence E. Larson,et al.  Linear high-efficiency microwave power amplifiers using bandpass delta-sigma modulators , 1998 .

[2]  Yasushi Yamao,et al.  Power Spectral Analysis of the Envelope Pulse-Width Modulation (EPWM) Transmitter for High Efficiency Amplification of OFDM Signals , 2008, VTC Spring 2008 - IEEE Vehicular Technology Conference.

[3]  Genevieve Baudoin,et al.  A Cartesian Sigma-Delta transmitter architecture , 2009, 2009 IEEE Radio and Wireless Symposium.

[4]  Kazuto Yano,et al.  An EER Transmitter Architecture with Burst-Width Envelope Modulation based on Triangle-Wave Comparison PWM , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[5]  Yuanxun Wang.  An improved Kahn transmitter architecture based on delta-sigma modulation , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[6]  Yuanxun Wang,et al.  A class-S RF amplifier architecture with envelope delta-sigma modulation , 2002, Proceedings RAWCON 2002. 2002 IEEE Radio and Wireless Conference (Cat. No.02EX573).

[7]  Fadhel M. Ghannouchi,et al.  A Novel Architecture of Delta-Sigma Modulator Enabling All-Digital Multiband Multistandard RF Transmitters Design , 2008, IEEE Transactions on Circuits and Systems II: Express Briefs.