A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems
This paper introduces an analog notch filtering-based coupling circuit for receivers in ultra-narrowband and narrowband power line communication systems, which are connected to low-voltage electric power grids. It is composed of a twin-T notch analog filter, which is responsible for imposing a signi...
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MDPI AG
2022-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/24/9722 |
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| author | Luís Guilherme da Silva Costa Wesley Mateus Cantarino Ândrei Camponogara André Augusto Ferreira Moisés Vidal Ribeiro |
| author_facet | Luís Guilherme da Silva Costa Wesley Mateus Cantarino Ândrei Camponogara André Augusto Ferreira Moisés Vidal Ribeiro |
| author_sort | Luís Guilherme da Silva Costa |
| collection | DOAJ |
| description | This paper introduces an analog notch filtering-based coupling circuit for receivers in ultra-narrowband and narrowband power line communication systems, which are connected to low-voltage electric power grids. It is composed of a twin-T notch analog filter, which is responsible for imposing a significant attenuation on the main frequency (i.e., <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mn>0</mn></msub><mo>∈</mo><mrow><mo>{</mo><mn>50</mn><mo>,</mo><mn>60</mn><mo>}</mo></mrow></mrow></semantics></math></inline-formula> Hz) in cascade with an elliptic low-pass analog filter, designed with a 3 dB cut-off frequency of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mi>c</mi></msub><mo>≫</mo><msub><mi>f</mi><mn>0</mn></msub></mrow></semantics></math></inline-formula>. For <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mn>0</mn></msub><mo>=</mo><mn>60</mn></mrow></semantics></math></inline-formula> Hz and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mi>c</mi></msub><mo>=</mo><mn>2</mn></mrow></semantics></math></inline-formula> MHz, the prototype of the analog notch filtering-based coupling circuit attains attenuation values of 22 dB and less than 2 dB at the main frequency and in the rest of the frequency bandwidth, respectively, when practical scenarios are considered. Lastly, it shows that the analog notch filtering-based coupling circuit is more effective than a typical capacitive coupling circuit when frequencies lower than 3 kHz are considered for data communication and sensing purposes. |
| first_indexed | 2024-03-09T15:52:27Z |
| format | Article |
| id | doaj.art-4bc20ac7ddd34f10b23e8664c95f9511 |
| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-09T15:52:27Z |
| publishDate | 2022-12-01 |
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| spelling | doaj.art-4bc20ac7ddd34f10b23e8664c95f95112023-11-24T17:54:15ZengMDPI AGSensors1424-82202022-12-012224972210.3390/s22249722A Notch Filter-Based Coupling Circuit for UNB and NB PLC SystemsLuís Guilherme da Silva Costa0Wesley Mateus Cantarino1Ândrei Camponogara2André Augusto Ferreira3Moisés Vidal Ribeiro4Department of Electrical Engineering, Federal University of Juiz de Fora, Juiz de Fora 36036-900, BrazilDepartment of Electrical Engineering, Federal University of Juiz de Fora, Juiz de Fora 36036-900, BrazilDepartment of Electrical Engineering, Federal University of Paraná, Curitiba 80060-000, BrazilDepartment of Electrical Engineering, Federal University of Juiz de Fora, Juiz de Fora 36036-900, BrazilDepartment of Electrical Engineering, Federal University of Juiz de Fora, Juiz de Fora 36036-900, BrazilThis paper introduces an analog notch filtering-based coupling circuit for receivers in ultra-narrowband and narrowband power line communication systems, which are connected to low-voltage electric power grids. It is composed of a twin-T notch analog filter, which is responsible for imposing a significant attenuation on the main frequency (i.e., <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mn>0</mn></msub><mo>∈</mo><mrow><mo>{</mo><mn>50</mn><mo>,</mo><mn>60</mn><mo>}</mo></mrow></mrow></semantics></math></inline-formula> Hz) in cascade with an elliptic low-pass analog filter, designed with a 3 dB cut-off frequency of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mi>c</mi></msub><mo>≫</mo><msub><mi>f</mi><mn>0</mn></msub></mrow></semantics></math></inline-formula>. For <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mn>0</mn></msub><mo>=</mo><mn>60</mn></mrow></semantics></math></inline-formula> Hz and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>f</mi><mi>c</mi></msub><mo>=</mo><mn>2</mn></mrow></semantics></math></inline-formula> MHz, the prototype of the analog notch filtering-based coupling circuit attains attenuation values of 22 dB and less than 2 dB at the main frequency and in the rest of the frequency bandwidth, respectively, when practical scenarios are considered. Lastly, it shows that the analog notch filtering-based coupling circuit is more effective than a typical capacitive coupling circuit when frequencies lower than 3 kHz are considered for data communication and sensing purposes.https://www.mdpi.com/1424-8220/22/24/9722power line communicationcoupling circuitnotch filternarrowbandultra-narrowband |
| spellingShingle | Luís Guilherme da Silva Costa Wesley Mateus Cantarino Ândrei Camponogara André Augusto Ferreira Moisés Vidal Ribeiro A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems Sensors power line communication coupling circuit notch filter narrowband ultra-narrowband |
| title | A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems |
| title_full | A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems |
| title_fullStr | A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems |
| title_full_unstemmed | A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems |
| title_short | A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems |
| title_sort | notch filter based coupling circuit for unb and nb plc systems |
| topic | power line communication coupling circuit notch filter narrowband ultra-narrowband |
| url | https://www.mdpi.com/1424-8220/22/24/9722 |
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