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2012-05-03
Miniaturized Microstrip Dual-Mode Filter with Three Transmission Zeros
By
Progress In Electromagnetics Research Letters, Vol. 31, 199-207, 2012
Abstract
A novel miniaturized microstrip dual-mode filter using a half wavelength resonator with centrally loaded open stub and quasi-L shaped feed-lines is proposed. The advantage of using such a resonator is inherently generating a transmission zero by itself. To further improve the selectivity, quasi-L shaped feed-lines are introduced to create additional transmission zeros. Theoretical and simulated analyses of this filter are performed. A demonstration filter centered at 2.33 GHz with a fractional bandwidth of 4.7% is designed, fabricated and measured to validate the design methodology.
Citation
Shanshan Gao, Shao-Qiu Xiao, and Jia-Lin Li, "Miniaturized Microstrip Dual-Mode Filter with Three Transmission Zeros," Progress In Electromagnetics Research Letters, Vol. 31, 199-207, 2012.
doi:10.2528/PIERL12033002
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