A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances
In this paper, a novel active tunable band-pass filter with improved noise performances is presented. This filter is based on a negative resistance circuit (or active capacitance), where the gain obtained with a transistor is used to compensate for inductor losses. Moreover, the capacitance of the r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/17/2781 |
| _version_ | 1797495771907489792 |
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| author | Davide Colaiuda Alfiero Leoni Giuseppe Ferri Vincenzo Stornelli |
| author_facet | Davide Colaiuda Alfiero Leoni Giuseppe Ferri Vincenzo Stornelli |
| author_sort | Davide Colaiuda |
| collection | DOAJ |
| description | In this paper, a novel active tunable band-pass filter with improved noise performances is presented. This filter is based on a negative resistance circuit (or active capacitance), where the gain obtained with a transistor is used to compensate for inductor losses. Moreover, the capacitance of the resonator is obtained through a voltage-controlled reverse-biased varactor, which allows for frequency tuning. Despite the active component, the proposed filter also has good noise performance. Measurements show a tunability range from 1.816 GHz to 1.886 GHz, with a bandwidth of 38 MHz. The insertion loss maximum value is 0.4 dB, while the noise figure value has a minimum value of 2.5 dB at the center frequency within the tunability range. |
| first_indexed | 2024-03-10T01:54:24Z |
| format | Article |
| id | doaj.art-cf4b37a5399b46409a44713b1df512a4 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T01:54:24Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-cf4b37a5399b46409a44713b1df512a42023-11-23T12:59:54ZengMDPI AGElectronics2079-92922022-09-011117278110.3390/electronics11172781A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise PerformancesDavide Colaiuda0Alfiero Leoni1Giuseppe Ferri2Vincenzo Stornelli3Department of Industrial and Information Engineering, University of L’Aquila, 67100 L’Aquila, ItalyDepartment of Industrial and Information Engineering, University of L’Aquila, 67100 L’Aquila, ItalyDepartment of Industrial and Information Engineering, University of L’Aquila, 67100 L’Aquila, ItalyDepartment of Industrial and Information Engineering, University of L’Aquila, 67100 L’Aquila, ItalyIn this paper, a novel active tunable band-pass filter with improved noise performances is presented. This filter is based on a negative resistance circuit (or active capacitance), where the gain obtained with a transistor is used to compensate for inductor losses. Moreover, the capacitance of the resonator is obtained through a voltage-controlled reverse-biased varactor, which allows for frequency tuning. Despite the active component, the proposed filter also has good noise performance. Measurements show a tunability range from 1.816 GHz to 1.886 GHz, with a bandwidth of 38 MHz. The insertion loss maximum value is 0.4 dB, while the noise figure value has a minimum value of 2.5 dB at the center frequency within the tunability range.https://www.mdpi.com/2079-9292/11/17/2781active filtersbandpass filters (bpfs)active capacitancenegative resistance circuitsnoise figure |
| spellingShingle | Davide Colaiuda Alfiero Leoni Giuseppe Ferri Vincenzo Stornelli A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances Electronics active filters bandpass filters (bpfs) active capacitance negative resistance circuits noise figure |
| title | A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances |
| title_full | A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances |
| title_fullStr | A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances |
| title_full_unstemmed | A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances |
| title_short | A Second Order 1.8–1.9 GHz Tunable Active Band-Pass Filter with Improved Noise Performances |
| title_sort | second order 1 8 1 9 ghz tunable active band pass filter with improved noise performances |
| topic | active filters bandpass filters (bpfs) active capacitance negative resistance circuits noise figure |
| url | https://www.mdpi.com/2079-9292/11/17/2781 |
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