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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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QUAD-BAND MULTILAYER SIW FILTER WITH HIGH SELECTIVITY AND CONTROLLABLE BANDWIDTHS

By D.-H. Jia, J. Deng, Y. Zhao, and K. Wu

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Abstract:
This work presents an approach for the design of a quad-band substrate integrated waveguide (SIW) bandpass filter based on multilayer process. TE101/TE102/TE103/TE104 modes are used to characterize the four passbands, respectively. Firstly, the locations and band ratios of the passbands are chosen based on the effective width-length of the SIW resonator and its ratio. Then, vertical couplings of the modes and source-load are designed on the middle metal layers between the dielectric layers, which provides a relatively independent bandwidth tuning and high selectivity. To demonstrate the proposed design method, a quad-band SIW bandpass filter is fabricated and measured. Experimental results agree well with the simulated counterpart. The proposed quad-band SIW filter presents good selectivity and compact size.

Citation:
D.-H. Jia, J. Deng, Y. Zhao, and K. Wu, "Quad-Band Multilayer SIW Filter with High Selectivity and Controllable Bandwidths," Progress In Electromagnetics Research Letters, Vol. 83, 133-138, 2019.
doi:10.2528/PIERL19021801

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