Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator
In this paper, a microstrip low-pass filter (LPF) with a wide stopband and a sharp transition band is presented using a windmill-shaped resonator. Traditional LPF designs often face challenges such as narrow stopbands, high insertion loss, and large physical sizes, which limit their performance in...
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| Format: | Article |
| Language: | English |
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Koya University
2024-12-01
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| Series: | ARO-The Scientific Journal of Koya University |
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| Online Access: | https://aro.koyauniversity.org/index.php/aro/article/view/1752 |
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| author | Sobhan Roshani Salah I. Yahya Shahram Khazaei Saeed Roshani Babak Karami |
| author_facet | Sobhan Roshani Salah I. Yahya Shahram Khazaei Saeed Roshani Babak Karami |
| author_sort | Sobhan Roshani |
| collection | DOAJ |
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In this paper, a microstrip low-pass filter (LPF) with a wide stopband and a sharp transition band is presented using a windmill-shaped resonator. Traditional LPF designs often face challenges such as narrow stopbands, high insertion loss, and large physical sizes, which limit their performance in modern communication systems. To address these challenges, the proposed filter exhibits low insertion loss, a sharp response in the transition band, a wide stopband, and a compact size. The windmill-shaped resonator is applied to achieve a sharp response in the transition band, while two suppressor cells are added to extend the stopband. The filter has a 3 dB cutoff frequency (fc) of 1.61 GHz, with an S12 parameter value of −20 dB at 1.7 GHz, resulting in a narrow transition band of 0.18 GHz, demonstrating its superior performance. In addition, the filter achieves a wide stopband that extends from 1.79 GHz to 11.26 GHz (a bandwidth of 9.47 GHz) with high attenuation. The physical size of the filter is 13.34 mm × 12.78 mm (0.097λ × 0.093λ). Overall, the proposed filter demonstrates excellent characteristics in both the passband and stopband regions, providing an effective solution for modern communication system requirements. The presented design effectively addresses key limitations in traditional LPF configurations, offering improved performance and compactness.
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| format | Article |
| id | doaj-art-ab6fdd9ba55c405bb37bc076cc28743d |
| institution | DOAJ |
| issn | 2410-9355 2307-549X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Koya University |
| record_format | Article |
| series | ARO-The Scientific Journal of Koya University |
| spelling | doaj-art-ab6fdd9ba55c405bb37bc076cc28743d2025-08-20T02:51:23ZengKoya UniversityARO-The Scientific Journal of Koya University2410-93552307-549X2024-12-0112210.14500/aro.11752Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped ResonatorSobhan Roshani0Salah I. Yahya1Shahram Khazaei2Saeed Roshani3Babak Karami4Department of Electrical Engineering, Kermanshah Branch, Islamic Azad University,Kermanshah, Iran(1) Department of Communication and Computer Engineering, Cihan University-Erbil, Erbil 44001, Iraq; (2) Department of Software Engineering, Faculty of Engineering, Koya University, Koya, IraqDepartment of Electrical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj, IranDepartment of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, IranDepartment of Mechanical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, Iran In this paper, a microstrip low-pass filter (LPF) with a wide stopband and a sharp transition band is presented using a windmill-shaped resonator. Traditional LPF designs often face challenges such as narrow stopbands, high insertion loss, and large physical sizes, which limit their performance in modern communication systems. To address these challenges, the proposed filter exhibits low insertion loss, a sharp response in the transition band, a wide stopband, and a compact size. The windmill-shaped resonator is applied to achieve a sharp response in the transition band, while two suppressor cells are added to extend the stopband. The filter has a 3 dB cutoff frequency (fc) of 1.61 GHz, with an S12 parameter value of −20 dB at 1.7 GHz, resulting in a narrow transition band of 0.18 GHz, demonstrating its superior performance. In addition, the filter achieves a wide stopband that extends from 1.79 GHz to 11.26 GHz (a bandwidth of 9.47 GHz) with high attenuation. The physical size of the filter is 13.34 mm × 12.78 mm (0.097λ × 0.093λ). Overall, the proposed filter demonstrates excellent characteristics in both the passband and stopband regions, providing an effective solution for modern communication system requirements. The presented design effectively addresses key limitations in traditional LPF configurations, offering improved performance and compactness. https://aro.koyauniversity.org/index.php/aro/article/view/1752Low-pass filterMicrostripResonatorReturn lossStopbandTransition band |
| spellingShingle | Sobhan Roshani Salah I. Yahya Shahram Khazaei Saeed Roshani Babak Karami Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator ARO-The Scientific Journal of Koya University Low-pass filter Microstrip Resonator Return loss Stopband Transition band |
| title | Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator |
| title_full | Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator |
| title_fullStr | Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator |
| title_full_unstemmed | Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator |
| title_short | Design and Fabrication of a Microstrip Low-Pass Filter with a Wide Stopband Using a Windmill-Shaped Resonator |
| title_sort | design and fabrication of a microstrip low pass filter with a wide stopband using a windmill shaped resonator |
| topic | Low-pass filter Microstrip Resonator Return loss Stopband Transition band |
| url | https://aro.koyauniversity.org/index.php/aro/article/view/1752 |
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