Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator
A multiwideband bandpass filter (MW-BPF) using a quad cross-stub stepped impedance resonator (QC-SSIR) was simulated, fabricated, and measured. The proposed QC-SSIR is designed on a four-series arrangement of crossed open stub (COS) structures where each open stub is developed with a step impedance...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2020/4124721 |
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| author | Gunawan Wibisono Teguh Firmansyah Herudin Herudin Muh Wildan Toto Supriyanto Mudrik Alaydrus Febrizal Ujang |
| author_facet | Gunawan Wibisono Teguh Firmansyah Herudin Herudin Muh Wildan Toto Supriyanto Mudrik Alaydrus Febrizal Ujang |
| author_sort | Gunawan Wibisono |
| collection | DOAJ |
| description | A multiwideband bandpass filter (MW-BPF) using a quad cross-stub stepped impedance resonator (QC-SSIR) was simulated, fabricated, and measured. The proposed QC-SSIR is designed on a four-series arrangement of crossed open stub (COS) structures where each open stub is developed with a step impedance resonator (SIR) structure to generate a wide bandwidth. Compared to the COS resonator, the QC-SSIR has a wider fractional bandwidth and good transmission coefficients and is compact. ABCD matrix analysis is used to investigate the filter structure. Furthermore, the MW-BPF is designed on an FR4 microstrip substrate with εr = 4.4, thickness h = 1.6 mm, and tan δ = 0.0265. The results show that the proposed MW-BPF using a QC-SSIR achieves transmission coefficients/fractional bandwidths of −0.60 dB/49.3%, −1.49 dB/18.7%, and −1.93 dB/13.9% at 0.81 GHz, 1.71 GHz, and 2.58 GHz, respectively. Furthermore, to reduce the filter size, a folded QC-SSIR (FQC-SSIR) structure was also proposed. The results show that the proposed MW-BPF using an FQC-SSIR achieves transmission coefficients/fractional bandwidths of −0.57 dB/49.6%, −1.21 dB/17.7%, and −1.76 dB/12.5% at 0.82 GHz, 1.80 GHz, and 2.62 GHz, respectively. The size of the proposed MW-BPF using an FQC-SSIR is reduced by up to 46% compared with the MW-BPF using a QC-SSIR. Finally, the performance of the simulated MW-BPF based on the QC-SSIR and FQC-SSIR was in good agreement with the measurement results. |
| format | Article |
| id | doaj-art-f8645bd61c6140689fa283d45d5b8e75 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-f8645bd61c6140689fa283d45d5b8e752025-02-03T06:46:38ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772020-01-01202010.1155/2020/41247214124721Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance ResonatorGunawan Wibisono0Teguh Firmansyah1Herudin Herudin2Muh Wildan3Toto Supriyanto4Mudrik Alaydrus5Febrizal Ujang6Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI, Depok 16424, IndonesiaDepartment of Electrical Engineering, Faculty of Engineering, Universitas Sultan Ageng Tirtayasa, Cilegon, Banten 42435, IndonesiaDepartment of Electrical Engineering, Faculty of Engineering, Universitas Sultan Ageng Tirtayasa, Cilegon, Banten 42435, IndonesiaDepartment of Aviation Engineering, Indonesian Civil Aviation Institute, Tangerang, Banten 15820, IndonesiaDepartment of Electrical Engineering, Politeknik Negeri Jakarta, Kampus Baru UI, Depok 16424, IndonesiaDepartment of Electrical Engineering, Universitas Mercu Buana, Meruya, Jakarta 11650, IndonesiaDepartment of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI, Depok 16424, IndonesiaA multiwideband bandpass filter (MW-BPF) using a quad cross-stub stepped impedance resonator (QC-SSIR) was simulated, fabricated, and measured. The proposed QC-SSIR is designed on a four-series arrangement of crossed open stub (COS) structures where each open stub is developed with a step impedance resonator (SIR) structure to generate a wide bandwidth. Compared to the COS resonator, the QC-SSIR has a wider fractional bandwidth and good transmission coefficients and is compact. ABCD matrix analysis is used to investigate the filter structure. Furthermore, the MW-BPF is designed on an FR4 microstrip substrate with εr = 4.4, thickness h = 1.6 mm, and tan δ = 0.0265. The results show that the proposed MW-BPF using a QC-SSIR achieves transmission coefficients/fractional bandwidths of −0.60 dB/49.3%, −1.49 dB/18.7%, and −1.93 dB/13.9% at 0.81 GHz, 1.71 GHz, and 2.58 GHz, respectively. Furthermore, to reduce the filter size, a folded QC-SSIR (FQC-SSIR) structure was also proposed. The results show that the proposed MW-BPF using an FQC-SSIR achieves transmission coefficients/fractional bandwidths of −0.57 dB/49.6%, −1.21 dB/17.7%, and −1.76 dB/12.5% at 0.82 GHz, 1.80 GHz, and 2.62 GHz, respectively. The size of the proposed MW-BPF using an FQC-SSIR is reduced by up to 46% compared with the MW-BPF using a QC-SSIR. Finally, the performance of the simulated MW-BPF based on the QC-SSIR and FQC-SSIR was in good agreement with the measurement results.http://dx.doi.org/10.1155/2020/4124721 |
| spellingShingle | Gunawan Wibisono Teguh Firmansyah Herudin Herudin Muh Wildan Toto Supriyanto Mudrik Alaydrus Febrizal Ujang Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator International Journal of Antennas and Propagation |
| title | Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator |
| title_full | Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator |
| title_fullStr | Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator |
| title_full_unstemmed | Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator |
| title_short | Multiwideband Bandpass Filter Based on Folded Quad Cross-Stub Stepped Impedance Resonator |
| title_sort | multiwideband bandpass filter based on folded quad cross stub stepped impedance resonator |
| url | http://dx.doi.org/10.1155/2020/4124721 |
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