Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems
In this paper, a lowpass filter is designed using half elliptical resonators with a wide stopband. New formulas are presented to achieve a circuit model for the half elliptical resonators used in this work. Additionally, the transfer function and transmission zero equations are used to adjust the fr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/23/2916 |
| _version_ | 1797507899003502592 |
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| author | Rasoul Azadi Saeed Roshani Arez Nosratpour Ali Lalbakhsh Mohammad Hazhir Mozaffari |
| author_facet | Rasoul Azadi Saeed Roshani Arez Nosratpour Ali Lalbakhsh Mohammad Hazhir Mozaffari |
| author_sort | Rasoul Azadi |
| collection | DOAJ |
| description | In this paper, a lowpass filter is designed using half elliptical resonators with a wide stopband. New formulas are presented to achieve a circuit model for the half elliptical resonators used in this work. Additionally, the transfer function and transmission zero equations are used to adjust the frequency of the transmission zeros of the filter. The cut-off frequency of the lowpass filter is 1.26 GHz with a sufficiently large stopband, extending from 1.48 GHz to 20 GHz. The proposed filter’s figure of merit is 62,520, demonstrating its outperformance compared to the state of the art. The filter is implemented on a RT-5880 substrate with a constant dielectric of 2.2, thickness of 31 mil and loss tangent of 0.0009. The LPF was fabricated and tested, showing good agreement between the simulated and measured results. |
| first_indexed | 2024-03-10T04:55:00Z |
| format | Article |
| id | doaj.art-17702ff0ebf64b7babb35127577767ec |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T04:55:00Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-17702ff0ebf64b7babb35127577767ec2023-11-23T02:16:01ZengMDPI AGElectronics2079-92922021-11-011023291610.3390/electronics10232916Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication SystemsRasoul Azadi0Saeed Roshani1Arez Nosratpour2Ali Lalbakhsh3Mohammad Hazhir Mozaffari4Department of Electrical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj 1439914153, IranDepartment of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, IranDepartment of Electrical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj 1439914153, IranSchool of Engineering, Macquarie University, Macquarie Park, NSW 2109, AustraliaDepartment of Electrical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj 1439914153, IranIn this paper, a lowpass filter is designed using half elliptical resonators with a wide stopband. New formulas are presented to achieve a circuit model for the half elliptical resonators used in this work. Additionally, the transfer function and transmission zero equations are used to adjust the frequency of the transmission zeros of the filter. The cut-off frequency of the lowpass filter is 1.26 GHz with a sufficiently large stopband, extending from 1.48 GHz to 20 GHz. The proposed filter’s figure of merit is 62,520, demonstrating its outperformance compared to the state of the art. The filter is implemented on a RT-5880 substrate with a constant dielectric of 2.2, thickness of 31 mil and loss tangent of 0.0009. The LPF was fabricated and tested, showing good agreement between the simulated and measured results.https://www.mdpi.com/2079-9292/10/23/2916lowpass filter (LPF)elliptical resonatorstopbandpassband5G |
| spellingShingle | Rasoul Azadi Saeed Roshani Arez Nosratpour Ali Lalbakhsh Mohammad Hazhir Mozaffari Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems Electronics lowpass filter (LPF) elliptical resonator stopband passband 5G |
| title | Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems |
| title_full | Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems |
| title_fullStr | Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems |
| title_full_unstemmed | Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems |
| title_short | Half-Elliptical Resonator Lowpass Filter with a Wide Stopband for Low Band 5G Communication Systems |
| title_sort | half elliptical resonator lowpass filter with a wide stopband for low band 5g communication systems |
| topic | lowpass filter (LPF) elliptical resonator stopband passband 5G |
| url | https://www.mdpi.com/2079-9292/10/23/2916 |
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