Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses
A frequency tunable filter with a bandpass-to-absorptive bandstop reconfigurable characteristic is studied, designed and validated theoretically and experimentally. To control the filter bandwidth and impedance matching performance, variable capacitors are used in each external and internal coupling...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8949494/ |
| _version_ | 1818608523805720576 |
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| author | Tae-Hak Lee Jean-Jacques Laurin Ke Wu |
| author_facet | Tae-Hak Lee Jean-Jacques Laurin Ke Wu |
| author_sort | Tae-Hak Lee |
| collection | DOAJ |
| description | A frequency tunable filter with a bandpass-to-absorptive bandstop reconfigurable characteristic is studied, designed and validated theoretically and experimentally. To control the filter bandwidth and impedance matching performance, variable capacitors are used in each external and internal coupling structure, and, by using equivalent circuits, the required frequency responses of two different modes are obtained. Two single-pole double-throw switches embedded in the transmission lines running from the source to the load accommodate external coupling structures to control the operational mode of the proposed filter. All commercially available electronics such as switches and varactor diodes are placed on the microstrip line layer, and the frequency-tunable substrate integrated waveguide (SIW) resonators are coupled to the transmission line through coupling slots. In the absorptive bandstop mode, the stopband is tuned from 1.83 GHz to 2.49 GHz, while the passband can be tuned from 1.86 GHz to 3.3 GHz in the bandpass mode. In both modes, more than 10 dB in return loss over the frequency tuning range of interest has been achieved. Theoretical, simulated, and measured results are in good agreement, which validate the proposed filter structure. |
| first_indexed | 2024-12-16T14:44:00Z |
| format | Article |
| id | doaj.art-f5d336c0964b4465a31d952f981804af |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T14:44:00Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-f5d336c0964b4465a31d952f981804af2022-12-21T22:27:50ZengIEEEIEEE Access2169-35362020-01-0186484649510.1109/ACCESS.2019.29637108949494Reconfigurable Filter for Bandpass-to-Absorptive Bandstop ResponsesTae-Hak Lee0https://orcid.org/0000-0003-4910-7039Jean-Jacques Laurin1https://orcid.org/0000-0002-5697-7879Ke Wu2Satellite Payload Research and Development Division, Korea Aerospace Research Institute, Daejeon, South KoreaPoly-Grames Research Center, Ecole Polytechnique, University of Montreal, Montreal, QC, CanadaPoly-Grames Research Center, Ecole Polytechnique, University of Montreal, Montreal, QC, CanadaA frequency tunable filter with a bandpass-to-absorptive bandstop reconfigurable characteristic is studied, designed and validated theoretically and experimentally. To control the filter bandwidth and impedance matching performance, variable capacitors are used in each external and internal coupling structure, and, by using equivalent circuits, the required frequency responses of two different modes are obtained. Two single-pole double-throw switches embedded in the transmission lines running from the source to the load accommodate external coupling structures to control the operational mode of the proposed filter. All commercially available electronics such as switches and varactor diodes are placed on the microstrip line layer, and the frequency-tunable substrate integrated waveguide (SIW) resonators are coupled to the transmission line through coupling slots. In the absorptive bandstop mode, the stopband is tuned from 1.83 GHz to 2.49 GHz, while the passband can be tuned from 1.86 GHz to 3.3 GHz in the bandpass mode. In both modes, more than 10 dB in return loss over the frequency tuning range of interest has been achieved. Theoretical, simulated, and measured results are in good agreement, which validate the proposed filter structure.https://ieeexplore.ieee.org/document/8949494/Reconfigurableabsorptive bandstop filterbandpass filtersingle-pole double throw switchsubstrate integrated waveguide (SIW) resonator |
| spellingShingle | Tae-Hak Lee Jean-Jacques Laurin Ke Wu Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses IEEE Access Reconfigurable absorptive bandstop filter bandpass filter single-pole double throw switch substrate integrated waveguide (SIW) resonator |
| title | Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses |
| title_full | Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses |
| title_fullStr | Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses |
| title_full_unstemmed | Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses |
| title_short | Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses |
| title_sort | reconfigurable filter for bandpass to absorptive bandstop responses |
| topic | Reconfigurable absorptive bandstop filter bandpass filter single-pole double throw switch substrate integrated waveguide (SIW) resonator |
| url | https://ieeexplore.ieee.org/document/8949494/ |
| work_keys_str_mv | AT taehaklee reconfigurablefilterforbandpasstoabsorptivebandstopresponses AT jeanjacqueslaurin reconfigurablefilterforbandpasstoabsorptivebandstopresponses AT kewu reconfigurablefilterforbandpasstoabsorptivebandstopresponses |