Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure
Targeting the range defined by the FCC (Federal Communication Commission) in 2002 for ultra-passband bandpass filters, i.e., 3.1 to 10.6 GHz, this article presents a simple compact multipoles ultra-wideband bandpass filter (range starting from 2.9 GHz and end at 11.5 GHz with central frequency 7.2 G...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Fractal and Fractional |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-3110/7/2/112 |
| _version_ | 1797620900596547584 |
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| author | Abdul Basit Amil Daraz Muhammad Irshad Khan Najmus Saqib Guoqiang Zhang |
| author_facet | Abdul Basit Amil Daraz Muhammad Irshad Khan Najmus Saqib Guoqiang Zhang |
| author_sort | Abdul Basit |
| collection | DOAJ |
| description | Targeting the range defined by the FCC (Federal Communication Commission) in 2002 for ultra-passband bandpass filters, i.e., 3.1 to 10.6 GHz, this article presents a simple compact multipoles ultra-wideband bandpass filter (range starting from 2.9 GHz and end at 11.5 GHz with central frequency 7.2 GHz) using parallel coupled microstrip line and multimode resonator with controllable double narrow notched bands at 3.5 GHz and 7.5 GHz by embedded a spur line structure and rectangular stub resonator coupled to the middle section of the multimode resonator to eliminate the interference with the existing radio signals falls in the range of 3.1 to 10.6 GHz, respectively. After optimization of the proposed filter, some attractive features were obtained, i.e., a compact size 21 mm × 5.2 mm, simple topology, good reflection coefficient lower than −18 dB, good passband transmission coefficient –1.1 dB over the entire fractional bandwidth of about 119.4%, and four transmission poles at 3.4 GHz, 4.6 GHz, 6.5 GHz, and 10 GHz, respectively, can be seen which improves the performance of the filter. Finally, the fabricated filter was tested, and the results obtained demonstrated an excellent agreement. |
| first_indexed | 2024-03-11T08:49:05Z |
| format | Article |
| id | doaj.art-a47da418b84740ab8db0e849555d0a60 |
| institution | Directory Open Access Journal |
| issn | 2504-3110 |
| language | English |
| last_indexed | 2024-03-11T08:49:05Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fractal and Fractional |
| spelling | doaj.art-a47da418b84740ab8db0e849555d0a602023-11-16T20:36:10ZengMDPI AGFractal and Fractional2504-31102023-01-017211210.3390/fractalfract7020112Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped StructureAbdul Basit0Amil Daraz1Muhammad Irshad Khan2Najmus Saqib3Guoqiang Zhang4School of Information Science and Engineering, NingboTech University, Ningbo 315104, ChinaSchool of Information Science and Engineering, NingboTech University, Ningbo 315104, ChinaCollege of Electronics and Information Engineering, Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing 210000, ChinaDepartment of Electrical Engineering, University of Engineering and Technology, Peshawar 25000, PakistanSchool of Information Science and Engineering, NingboTech University, Ningbo 315104, ChinaTargeting the range defined by the FCC (Federal Communication Commission) in 2002 for ultra-passband bandpass filters, i.e., 3.1 to 10.6 GHz, this article presents a simple compact multipoles ultra-wideband bandpass filter (range starting from 2.9 GHz and end at 11.5 GHz with central frequency 7.2 GHz) using parallel coupled microstrip line and multimode resonator with controllable double narrow notched bands at 3.5 GHz and 7.5 GHz by embedded a spur line structure and rectangular stub resonator coupled to the middle section of the multimode resonator to eliminate the interference with the existing radio signals falls in the range of 3.1 to 10.6 GHz, respectively. After optimization of the proposed filter, some attractive features were obtained, i.e., a compact size 21 mm × 5.2 mm, simple topology, good reflection coefficient lower than −18 dB, good passband transmission coefficient –1.1 dB over the entire fractional bandwidth of about 119.4%, and four transmission poles at 3.4 GHz, 4.6 GHz, 6.5 GHz, and 10 GHz, respectively, can be seen which improves the performance of the filter. Finally, the fabricated filter was tested, and the results obtained demonstrated an excellent agreement.https://www.mdpi.com/2504-3110/7/2/112bandpass filterwireless communicationdouble notched bandsrectangular stub resonatorsize compactnessfederal communication commission |
| spellingShingle | Abdul Basit Amil Daraz Muhammad Irshad Khan Najmus Saqib Guoqiang Zhang Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure Fractal and Fractional bandpass filter wireless communication double notched bands rectangular stub resonator size compactness federal communication commission |
| title | Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure |
| title_full | Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure |
| title_fullStr | Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure |
| title_full_unstemmed | Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure |
| title_short | Design, Modeling, and Implementation of Dual Notched UWB Bandpass Filter Employing Rectangular Stubs and Embedded L-Shaped Structure |
| title_sort | design modeling and implementation of dual notched uwb bandpass filter employing rectangular stubs and embedded l shaped structure |
| topic | bandpass filter wireless communication double notched bands rectangular stub resonator size compactness federal communication commission |
| url | https://www.mdpi.com/2504-3110/7/2/112 |
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