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2009-04-20
Analysis and Design of a Compact Multi-Layer Ultra Wide Band Filter
By
Progress In Electromagnetics Research C, Vol. 7, 111-123, 2009
Abstract
This paper presents analysis and design of a compact ultra wide band (UWB) filter using three parallel folded coupled lines in a defected ground structure in multi-layer structure. Defected ground has been incorporated under the coupled lines of the filter to improve the coupling over a wide bandwidth. The closed form expressions for even and odd mode impedances for the coupled lines with defected ground have been obtained to design a filter of desired bandwidth with the proposed structure. Based on circuit models, an UWB filter for 3.1-10.6 GHz has been analyzed and the results have been compared using full wave simulations. Analytical results are satisfactorily matching with simulations. Filter exhibits a constant group delay of ±0.08 ns in the pass band. Size of the filter is 6.2 mm×3.4 mm×2.8 mm.
Citation
Durairaj Packiaraj Kalarickaparambil Vinoy Ajit Kalghatgi , "Analysis and Design of a Compact Multi-Layer Ultra Wide Band Filter," Progress In Electromagnetics Research C, Vol. 7, 111-123, 2009.
doi:10.2528/PIERC09030606
http://www.jpier.org/PIERC/pier.php?paper=09030606
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