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https://hdl.handle.net/2440/28409
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Type: | Conference paper |
Title: | Variable centre frequency bandpass sigma-delta modulator |
Author: | Zhu, Y. Al-Sarawi, S. Liebelt, M. |
Citation: | Smart structures, devices, and systems : 16-18 December 2002, Melbourne, Australia / Erol C. Harvey, Derek Abbott, Vijay K. Varadan (eds.) : pp. 197-204 |
Publisher: | SPIE |
Publisher Place: | CDROM |
Issue Date: | 2002 |
Series/Report no.: | Proceedings of SPIE--the International Society for Optical Engineering ; 4935. |
ISBN: | 0-8194-4730-7 |
ISSN: | 0277-786X |
Conference Name: | International Symposium on Smart Materials, Nano- and Micro-Smart Systems (2002 : Melbourne, Australia) |
Editor: | Harvey, E. Abbott, D. Varadan, V. |
Statement of Responsibility: | Yingbo Zhu, Said F. Al-Sarawi, and Michael Liebelt |
Abstract: | In wideband surveillance and digital radio systems, there is a need to sweep the centre fequency of the data converter to detect a broadcast i nthe band of interest. Hence there is a need to design data converters with variable centre frequencies. Sigma-Delta modulators with programmable center frequency are chosen for this purpose. In this paper new resonators for a variable centre frequency bandpass Sigma-Delta modulator are presented. The new resonators have a centre frequency that extends from very low frequency up to half the sampling frequency. Simulation results of a fourth order discrete-time bandpass modulator employing the new resonator are presented using MATLAB and SPICE. |
Description: | © 2003 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
DOI: | 10.1117/12.469667 |
Published version: | http://dx.doi.org/10.1117/12.469667 |
Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications Environment Institute publications |
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