DocumentCode
1868670
Title
Switched mode transmitter architecture using low pass delta sigma modulator
Author
Rehman, Sami Ur ; Khalid, Muhammad Ali
Author_Institution
Electr. Eng. Dept., NUST, Pakistan
fYear
2011
fDate
5-6 Sept. 2011
Firstpage
1
Lastpage
6
Abstract
Several design challenges of a low pass continuous time delta sigma modulator (LP DSM), to be used in switched mode transmitter architecture, have been identified. MATLAB simulations and modulation schemes for LP DSM have been presented. Various analog issues, mainly concerned with loop filter design, are discussed. Finally a highly efficient switched mode transmitter architecture using delta-sigma modulation and class-D amplifier is implemented. The transmitter architecture is operated at 200MHz.
Keywords
delta-sigma modulation; filters; mathematics computing; power amplifiers; transmitters; MATLAB simulations; class-D amplifier; loop filter design; low pass continuous time delta sigma modulator; switched mode transmitter architecture; Band pass filters; Delta-sigma modulation; Frequency modulation; Linearity; Switches; Transmitters; delta sigma; integrator; linear; power efficient; switched mode;
fLanguage
English
Publisher
ieee
Conference_Titel
Emerging Technologies (ICET), 2011 7th International Conference on
Conference_Location
Islamabad
Print_ISBN
978-1-4577-0769-8
Type
conf
DOI
10.1109/ICET.2011.6048491
Filename
6048491
Link To Document