High-Q Variable Bandwidth Passive Filters for Software Defined Radio

Arkesteijn, Vincent J. and Klumperink, Eric A.M. and Nauta, Bram (2001) High-Q Variable Bandwidth Passive Filters for Software Defined Radio. In: 2nd PROGRESS Workshop on Embedded Systems, 2001, 18 October 2001, Veldhoven, The Netherlands.

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Abstract:	An important aspect of Software Defined Radio is the ability to define the bandwidth of the filter that selects the desired channel. This paper describes a technique for channel filtering, in which two passive filters are combined to obtain a variable bandwidth. Passive filters have the advantage of high linearity, low noise and inherent energy efficiency. After an explanation of the concept, the requirements on the subsequent analog-todigital conversion are compared with those in a system where (part of) the channel selection is performed digitally. Some drawbacks of the concept are discussed. Finally, conclusions are drawn and our ideas for further research are presented.
Item Type:	Conference or Workshop Item
Copyright:	© 2001 STW Technology Foundation
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Integrated Circuit Design (ICD)
Link to this item:	http://purl.utwente.nl/publications/42870
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