Title :
A Polar Delta-Sigma Modulation (PDSM) Scheme for High Efficiency Wireless Transmitters
Author :
Jeong, Jinseong ; Wang, Yuanxun Ethan
Author_Institution :
California Univ. Los Angeles, Los Angeles
Abstract :
A novel polar delta-sigma modulation (PDSM) architecture that is suited for polar transmitters is proposed. The PDSM solves the noise convolution problem of existing envelope Delta-Sigma modulation techniques and it can provide robust in-band signal to noise performance with a moderate oversampling rate. The approach is expected find applications in high efficiency polar transmitters. Simulations with WCDMA downlink waveforms has validated the proposed concept.
Keywords :
delta-sigma modulation; high efficiency wireless transmitters; polar delta sigma modulation; polar transmitters; Band pass filters; Delta-sigma modulation; Power amplifiers; Pulse amplifiers; Quantization; Radio frequency; Radiofrequency amplifiers; Signal to noise ratio; Switches; Transmitters;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380257
