Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters
This paper presents the implementation of two-section coaxial stepped impedance resonators (SIRs) solution to control the attenuated band of Tx bandpass filters. This type of resonator has two degrees of freedom, in the transverse and longitudinal dimensions. At a fixed fundamental frequency, this a...
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10836709/ |
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| author | Alexandre Bonizec Jessica Benedicto Jean-Francois Favennec Eric Rius Christophe Goujon |
| author_facet | Alexandre Bonizec Jessica Benedicto Jean-Francois Favennec Eric Rius Christophe Goujon |
| author_sort | Alexandre Bonizec |
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| description | This paper presents the implementation of two-section coaxial stepped impedance resonators (SIRs) solution to control the attenuated band of Tx bandpass filters. This type of resonator has two degrees of freedom, in the transverse and longitudinal dimensions. At a fixed fundamental frequency, this allows the dimensions of the resonators to be modulated to control both the location of the harmonics and the power handling for space applications. It is therefore possible to design a filter for which the harmonic frequencies of the resonators are not the same, leading to destructive recombinations in the attenuated band. This is illustrated through the design of a 6th order narrowband L-band bandpass filter with controlled attenuation up to <inline-formula> <tex-math notation="LaTeX">$6.6\times $ </tex-math></inline-formula> F0 and a multipactor threshold of around 30 W. This filter was fabricated in aluminum and tested. The experimental results are presented and discussed. Finally, a comparison is made with the state-of-the-art. |
| format | Article |
| id | doaj-art-8e683e83b51d479390215eb9df3c32a9 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-8e683e83b51d479390215eb9df3c32a92025-01-21T00:01:41ZengIEEEIEEE Access2169-35362025-01-01139391939810.1109/ACCESS.2025.352825910836709Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass FiltersAlexandre Bonizec0https://orcid.org/0009-0008-0375-9713Jessica Benedicto1https://orcid.org/0000-0002-3203-0816Jean-Francois Favennec2https://orcid.org/0000-0002-6685-1620Eric Rius3https://orcid.org/0000-0002-8081-3460Christophe Goujon4Laboratoire des Sciences et Techniques de l’Information, de la Communication et de la Connaissance (Lab-STICC), Ecole Nationale d’Ingénieur de Brest, Plouzané, FranceLaboratoire des Sciences et Techniques de l’Information, de la Communication et de la Connaissance (Lab-STICC), University of Brest, Brest, FranceLaboratoire des Sciences et Techniques de l’Information, de la Communication et de la Connaissance (Lab-STICC), Ecole Nationale d’Ingénieur de Brest, Plouzané, FranceLaboratoire des Sciences et Techniques de l’Information, de la Communication et de la Connaissance (Lab-STICC), University of Brest, Brest, FranceDirection Générale de l’Armement, Bruz, FranceThis paper presents the implementation of two-section coaxial stepped impedance resonators (SIRs) solution to control the attenuated band of Tx bandpass filters. This type of resonator has two degrees of freedom, in the transverse and longitudinal dimensions. At a fixed fundamental frequency, this allows the dimensions of the resonators to be modulated to control both the location of the harmonics and the power handling for space applications. It is therefore possible to design a filter for which the harmonic frequencies of the resonators are not the same, leading to destructive recombinations in the attenuated band. This is illustrated through the design of a 6th order narrowband L-band bandpass filter with controlled attenuation up to <inline-formula> <tex-math notation="LaTeX">$6.6\times $ </tex-math></inline-formula> F0 and a multipactor threshold of around 30 W. This filter was fabricated in aluminum and tested. The experimental results are presented and discussed. Finally, a comparison is made with the state-of-the-art.https://ieeexplore.ieee.org/document/10836709/Bandpass filtercoaxial stepped impedance resonator (SIR)harmonic suppressionmultipactor threshold |
| spellingShingle | Alexandre Bonizec Jessica Benedicto Jean-Francois Favennec Eric Rius Christophe Goujon Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters IEEE Access Bandpass filter coaxial stepped impedance resonator (SIR) harmonic suppression multipactor threshold |
| title | Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters |
| title_full | Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters |
| title_fullStr | Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters |
| title_full_unstemmed | Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters |
| title_short | Quarter-Wavelength Two-Section Coaxial Stepped Impedance Resonators for Harmonics Suppression in Tx Bandpass Filters |
| title_sort | quarter wavelength two section coaxial stepped impedance resonators for harmonics suppression in tx bandpass filters |
| topic | Bandpass filter coaxial stepped impedance resonator (SIR) harmonic suppression multipactor threshold |
| url | https://ieeexplore.ieee.org/document/10836709/ |
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