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MINIATURIZED SUBSTRATE INTEGRATED WAVEGUIDE DUAL-MODE FILTERS LOADED BY A SERIES OF CROSS-SLOT STRUCTURES

By L.-N. Chen, Y.-C. Jiao, Z. Zhang, and F.-S. Zhang

Full Article PDF (540 KB)

Abstract:
A family of miniaturized substrate integrated waveguide (SIW) dual-mode filters with a series of cross-slot structures etched on the waveguide surface are investigated and presented. By introducing the series of cross-slot structures: pure cross-slot, T-shaped loaded cross-slot and H shaped loaded cross-slot in original dual-mode SIW filters, size reductions of 22.15%, 30.56% and 56.25% are achieved, respectively. Moreover, the proposed family of SIW dual-mode filters can produce two controllable transmission zeros. Compared with SIW dual-mode filters in references and original filter, proposed filters exhibit compact size while retain good performance of bandwidth and minimum insertion loss. To verify the presented design, three SIW dual-mode filters are fabricated on the standard printed circuit board process. The measured results are in good agreement with the simulation.

Citation:
L.-N. Chen, Y.-C. Jiao, Z. Zhang, and F.-S. Zhang, "Miniaturized Substrate Integrated Waveguide Dual-Mode Filters Loaded by a Series of Cross-Slot Structures," Progress In Electromagnetics Research C, Vol. 29, 29-39, 2012.
doi:10.2528/PIERC12032302

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