Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure
This paper presents a study of a narrow bandwidth of the bandpass filter with a cross-coupled line structure. This structure was designed to have a good filter selectivity with the transmission zeros and a simple design. Since the structure has a cross shape, cross-coupling between the resonators co...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Indonesian Institute of Sciences
2022-08-01
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| Series: | Jurnal Elektronika dan Telekomunikasi |
| Subjects: | |
| Online Access: | https://www.jurnalet.com/jet/article/view/474 |
| _version_ | 1817985800821800960 |
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| author | Fajri Darwis Enjel Al Birr Rahayu Sutrisno Sutrisno Hanny Madiawati Taufiqqurrachman Taufiqqurrachman Arie Setiawan Erry Dwi Kurniawan Yusuf Nur Wijayanto |
| author_facet | Fajri Darwis Enjel Al Birr Rahayu Sutrisno Sutrisno Hanny Madiawati Taufiqqurrachman Taufiqqurrachman Arie Setiawan Erry Dwi Kurniawan Yusuf Nur Wijayanto |
| author_sort | Fajri Darwis |
| collection | DOAJ |
| description | This paper presents a study of a narrow bandwidth of the bandpass filter with a cross-coupled line structure. This structure was designed to have a good filter selectivity with the transmission zeros and a simple design. Since the structure has a cross shape, cross-coupling between the resonators consequently occurs. This interferes with the passband of the filter. Optimization in the size of the coupled lines and transmission lines was done to minimize the interference. Rogers RT/duroid 5880 was used as a substrate to fabricate the bandpass filter to verify the proposed design. As a result, the fabricated cross-coupled line bandpass filter has an 80 MHz of 3 dB bandwidth with operating frequency ranges from 2.97 GHz to 3.05 GHz. The bandwidth is reduced by 20 % from the specification.It shows that the cross-coupled line structure can yield a narrow bandwidth. Based on the 3 dB bandwidth, the center frequency is shifted 0.33 % above the specification. Meanwhile, the return loss and insertion loss of the proposed bandpass filter successfully comply with the required specifications. In conclusion, the proposed bandpass filter can be applied to S-Band applications that require narrow bandwidth. |
| first_indexed | 2024-04-14T00:02:30Z |
| format | Article |
| id | doaj.art-ceb2eee895584810a5d5dec9cdada890 |
| institution | Directory Open Access Journal |
| issn | 1411-8289 2527-9955 |
| language | English |
| last_indexed | 2024-04-14T00:02:30Z |
| publishDate | 2022-08-01 |
| publisher | Indonesian Institute of Sciences |
| record_format | Article |
| series | Jurnal Elektronika dan Telekomunikasi |
| spelling | doaj.art-ceb2eee895584810a5d5dec9cdada8902022-12-22T02:23:40ZengIndonesian Institute of SciencesJurnal Elektronika dan Telekomunikasi1411-82892527-99552022-08-0122181310.55981/jet.474247Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line StructureFajri Darwis0Enjel Al Birr Rahayu1Sutrisno Sutrisno2Hanny Madiawati3Taufiqqurrachman Taufiqqurrachman4Arie Setiawan5Erry Dwi Kurniawan6Yusuf Nur Wijayanto7Research Center for Telecommunication, National Research and Innovation AgencyDepartement Electrical Electronic Engineering, Polytechnic State of BandungDepartement Electrical Electronic Engineering, Polytechnic State of BandungDepartement Electrical Electronic Engineering, Polytechnic State of BandungResearch Center for Telecommunication, National Research and Innovation AgencyGraduate School of Engineering, Mie UniversityResearch Center for Telecommunication, National Research and Innovation AgencyResearch Center for Telecommunication, National Research and Innovation AgencyThis paper presents a study of a narrow bandwidth of the bandpass filter with a cross-coupled line structure. This structure was designed to have a good filter selectivity with the transmission zeros and a simple design. Since the structure has a cross shape, cross-coupling between the resonators consequently occurs. This interferes with the passband of the filter. Optimization in the size of the coupled lines and transmission lines was done to minimize the interference. Rogers RT/duroid 5880 was used as a substrate to fabricate the bandpass filter to verify the proposed design. As a result, the fabricated cross-coupled line bandpass filter has an 80 MHz of 3 dB bandwidth with operating frequency ranges from 2.97 GHz to 3.05 GHz. The bandwidth is reduced by 20 % from the specification.It shows that the cross-coupled line structure can yield a narrow bandwidth. Based on the 3 dB bandwidth, the center frequency is shifted 0.33 % above the specification. Meanwhile, the return loss and insertion loss of the proposed bandpass filter successfully comply with the required specifications. In conclusion, the proposed bandpass filter can be applied to S-Band applications that require narrow bandwidth.https://www.jurnalet.com/jet/article/view/474bandpass filtercross-coupleds-bandparallel-coupledmicrostrip |
| spellingShingle | Fajri Darwis Enjel Al Birr Rahayu Sutrisno Sutrisno Hanny Madiawati Taufiqqurrachman Taufiqqurrachman Arie Setiawan Erry Dwi Kurniawan Yusuf Nur Wijayanto Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure Jurnal Elektronika dan Telekomunikasi bandpass filter cross-coupled s-band parallel-coupled microstrip |
| title | Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure |
| title_full | Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure |
| title_fullStr | Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure |
| title_full_unstemmed | Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure |
| title_short | Cross-Coupled Line Bandpass Filter Based on Modified Parallel-Coupled Line Structure |
| title_sort | cross coupled line bandpass filter based on modified parallel coupled line structure |
| topic | bandpass filter cross-coupled s-band parallel-coupled microstrip |
| url | https://www.jurnalet.com/jet/article/view/474 |
| work_keys_str_mv | AT fajridarwis crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT enjelalbirrrahayu crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT sutrisnosutrisno crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT hannymadiawati crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT taufiqqurrachmantaufiqqurrachman crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT ariesetiawan crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT errydwikurniawan crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure AT yusufnurwijayanto crosscoupledlinebandpassfilterbasedonmodifiedparallelcoupledlinestructure |