Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling
In this article, an optimization-driven methodology is proposed for the design of substrate integrated waveguide (SIW) bandpass filters (BPFs) with predefined passbands. The width between the metallic walls of via-holes is governed by a truncated Fourier series to achieve the desired filtering perfo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9152972/ |
| _version_ | 1818662694805307392 |
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| author | Osama I. Hussein Khair A. Al Shamaileh Nihad I. Dib Amir Nosrati Said Abushamleh Daniel G. Georgiev Vijay Kumar Devabhaktuni |
| author_facet | Osama I. Hussein Khair A. Al Shamaileh Nihad I. Dib Amir Nosrati Said Abushamleh Daniel G. Georgiev Vijay Kumar Devabhaktuni |
| author_sort | Osama I. Hussein |
| collection | DOAJ |
| description | In this article, an optimization-driven methodology is proposed for the design of substrate integrated waveguide (SIW) bandpass filters (BPFs) with predefined passbands. The width between the metallic walls of via-holes is governed by a truncated Fourier series to achieve the desired filtering performance. The theory of rectangular waveguide is used to establish the optimization framework and obtain the series coefficients under predefined physical constraints. Two types of end-terminations are studied; specifically, with and without SIW-to-microstrip transitions. To validate the proposed methodology, two Ku-band BPF prototypes with 2.5% and 5.8% 15-dB fractional bandwidth (FBW) are designed, simulated, and measured. Furthermore, the half-mode SIW (HMSIW) concept is incorporated in one prototype to facilitate a miniaturized physical structure. Simulations and measurements are in close proximity with passband matching and transmission losses better than -15 dB and -2.5 dB, respectively. The proposed methodology allows for designing BPFs with predefined wideband or narrowband FBW by modifying the underlying physical constraints and optimization parameters. The resulting filters are planar, compact, and have wide stopband rejection. In addition, a derivation for the characteristic impedance of the SIW line is provided, which can be used to find the optimum SIW-to-microstrip transition without performing a parametric study. |
| first_indexed | 2024-12-17T05:05:02Z |
| format | Article |
| id | doaj.art-612caf2845af41da9de3448f8de7b5a5 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T05:05:02Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-612caf2845af41da9de3448f8de7b5a52022-12-21T22:02:28ZengIEEEIEEE Access2169-35362020-01-01813970613971410.1109/ACCESS.2020.30129949152972Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole WallingOsama I. Hussein0https://orcid.org/0000-0001-5951-3909Khair A. Al Shamaileh1https://orcid.org/0000-0003-4112-2605Nihad I. Dib2https://orcid.org/0000-0002-2263-5512Amir Nosrati3Said Abushamleh4Daniel G. Georgiev5Vijay Kumar Devabhaktuni6https://orcid.org/0000-0001-9526-0347Electrical Engineering and Computer Science Department, The University of Toledo, Toledo, OH, USAElectrical and Computer Engineering Department, Purdue University Northwest, Hammond, IN, USAElectrical Engineering Department, Jordan University of Science and Technology, Irbid, JordanSchool of Electrical and Computer Engineering, University of Tehran, Tehran, IranPhysics Department, The University of Nebraska at Kearney, Kearney, NE, USAElectrical Engineering and Computer Science Department, The University of Toledo, Toledo, OH, USAElectrical and Computer Engineering Department, Purdue University Northwest, Hammond, IN, USAIn this article, an optimization-driven methodology is proposed for the design of substrate integrated waveguide (SIW) bandpass filters (BPFs) with predefined passbands. The width between the metallic walls of via-holes is governed by a truncated Fourier series to achieve the desired filtering performance. The theory of rectangular waveguide is used to establish the optimization framework and obtain the series coefficients under predefined physical constraints. Two types of end-terminations are studied; specifically, with and without SIW-to-microstrip transitions. To validate the proposed methodology, two Ku-band BPF prototypes with 2.5% and 5.8% 15-dB fractional bandwidth (FBW) are designed, simulated, and measured. Furthermore, the half-mode SIW (HMSIW) concept is incorporated in one prototype to facilitate a miniaturized physical structure. Simulations and measurements are in close proximity with passband matching and transmission losses better than -15 dB and -2.5 dB, respectively. The proposed methodology allows for designing BPFs with predefined wideband or narrowband FBW by modifying the underlying physical constraints and optimization parameters. The resulting filters are planar, compact, and have wide stopband rejection. In addition, a derivation for the characteristic impedance of the SIW line is provided, which can be used to find the optimum SIW-to-microstrip transition without performing a parametric study.https://ieeexplore.ieee.org/document/9152972/Bandpass filter (BPF)half-mode substrate integrated waveguide (HMSIW)SIW-to-microstrip transitionnarrowbandrectangular waveguidesubstrate integrated waveguide (SIW) |
| spellingShingle | Osama I. Hussein Khair A. Al Shamaileh Nihad I. Dib Amir Nosrati Said Abushamleh Daniel G. Georgiev Vijay Kumar Devabhaktuni Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling IEEE Access Bandpass filter (BPF) half-mode substrate integrated waveguide (HMSIW) SIW-to-microstrip transition narrowband rectangular waveguide substrate integrated waveguide (SIW) |
| title | Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling |
| title_full | Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling |
| title_fullStr | Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling |
| title_full_unstemmed | Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling |
| title_short | Substrate Integrated Waveguide Bandpass Filtering With Fourier-Varying Via-Hole Walling |
| title_sort | substrate integrated waveguide bandpass filtering with fourier varying via hole walling |
| topic | Bandpass filter (BPF) half-mode substrate integrated waveguide (HMSIW) SIW-to-microstrip transition narrowband rectangular waveguide substrate integrated waveguide (SIW) |
| url | https://ieeexplore.ieee.org/document/9152972/ |
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