High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline
This paper proposes a single-port interdigital capacitor (IDC) resonator based on asymmetric branch feed line with high stability performance for permittivity detection of solid materials with a permittivity range of 1 - 6.15. The microwave sensor is designed using a single-port resonator operating...
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IEEE
2025-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/10870129/ |
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| author | Syah Alam Indra Surjati Lydia Sari Raden Deiny Mardian Teguh Firmansyah Muhammad Iqbal Slamet Widodo Mudrik Alaydrus Zahriladha Zakaria |
| author_facet | Syah Alam Indra Surjati Lydia Sari Raden Deiny Mardian Teguh Firmansyah Muhammad Iqbal Slamet Widodo Mudrik Alaydrus Zahriladha Zakaria |
| author_sort | Syah Alam |
| collection | DOAJ |
| description | This paper proposes a single-port interdigital capacitor (IDC) resonator based on asymmetric branch feed line with high stability performance for permittivity detection of solid materials with a permittivity range of 1 - 6.15. The microwave sensor is designed using a single-port resonator operating at two different resonant frequencies <inline-formula> <tex-math notation="LaTeX">$f_{r1} = 1.61$ </tex-math></inline-formula> GHz and <inline-formula> <tex-math notation="LaTeX">$f_{r2} = 2.52$ </tex-math></inline-formula> GHz. Dual band frequency was proposed using asymmetric branch feed line. In addition, to confine the electric field concentration of the resonator, an interdigital capacitor (IDC) structure is proposed as a solution. Furthermore, a copper shield was proposed as conducting material to evaluate performance stability of the sensor from disturbance effect with range of <inline-formula> <tex-math notation="LaTeX">$d = 1$ </tex-math></inline-formula> cm – 2.5 cm. Based on the measurement results, the sensor has high stability both without and with disturbance with an a Frequency Detection Resolution (FDR) of 0.009 - 0.4 GHz/<inline-formula> <tex-math notation="LaTeX">$\Delta \varepsilon _{\mathrm {r}}$ </tex-math></inline-formula>, a Normalized Sensitivity (NS) of 0.4% - 4.4%, and an average accuracy of 90% - 95% for both resonance frequencies, respectively. Therefore, this sensor can be recommended for several applications such as biomedical industry, pharmaceuticals and material quality control especially for outdoor measurements that are potentially affected by electromagnetic interference and disturbance. |
| format | Article |
| id | doaj-art-dfd929bebe3647229892aabca6dea6d6 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-dfd929bebe3647229892aabca6dea6d62025-02-11T00:01:40ZengIEEEIEEE Access2169-35362025-01-0113245762458610.1109/ACCESS.2025.353804210870129High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch FeedlineSyah Alam0https://orcid.org/0000-0002-0162-8364Indra Surjati1https://orcid.org/0000-0001-6944-0213Lydia Sari2Raden Deiny Mardian3https://orcid.org/0000-0001-5090-4604Teguh Firmansyah4https://orcid.org/0000-0002-9000-9337Muhammad Iqbal5https://orcid.org/0000-0001-9944-0329Slamet Widodo6https://orcid.org/0000-0002-6152-6239Mudrik Alaydrus7https://orcid.org/0000-0002-2195-1230Zahriladha Zakaria8https://orcid.org/0000-0003-1467-405XDepartment of Electrical Engineering, Universitas Trisakti, West Jakarta, IndonesiaDepartment of Electrical Engineering, Universitas Trisakti, West Jakarta, IndonesiaDepartment of Electrical Engineering, Universitas Trisakti, West Jakarta, IndonesiaDepartment of Electrical Engineering, Universitas Trisakti, West Jakarta, IndonesiaDepartment of Electrical Engineering, Universitas Sultan Ageng Tirtayasa, Serang, Banten, IndonesiaAdvanced Functional Materials Laboratory, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung, IndonesiaDepartment of Mechanical and Biosystems Engineering, IPB University, Bogor, IndonesiaDepartment of Electrical Engineering, Universitas Mercu Buana, West Jakarta, IndonesiaFaculty of Electronic and Computer Technology and Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Durian Tunggal, MalaysiaThis paper proposes a single-port interdigital capacitor (IDC) resonator based on asymmetric branch feed line with high stability performance for permittivity detection of solid materials with a permittivity range of 1 - 6.15. The microwave sensor is designed using a single-port resonator operating at two different resonant frequencies <inline-formula> <tex-math notation="LaTeX">$f_{r1} = 1.61$ </tex-math></inline-formula> GHz and <inline-formula> <tex-math notation="LaTeX">$f_{r2} = 2.52$ </tex-math></inline-formula> GHz. Dual band frequency was proposed using asymmetric branch feed line. In addition, to confine the electric field concentration of the resonator, an interdigital capacitor (IDC) structure is proposed as a solution. Furthermore, a copper shield was proposed as conducting material to evaluate performance stability of the sensor from disturbance effect with range of <inline-formula> <tex-math notation="LaTeX">$d = 1$ </tex-math></inline-formula> cm – 2.5 cm. Based on the measurement results, the sensor has high stability both without and with disturbance with an a Frequency Detection Resolution (FDR) of 0.009 - 0.4 GHz/<inline-formula> <tex-math notation="LaTeX">$\Delta \varepsilon _{\mathrm {r}}$ </tex-math></inline-formula>, a Normalized Sensitivity (NS) of 0.4% - 4.4%, and an average accuracy of 90% - 95% for both resonance frequencies, respectively. Therefore, this sensor can be recommended for several applications such as biomedical industry, pharmaceuticals and material quality control especially for outdoor measurements that are potentially affected by electromagnetic interference and disturbance.https://ieeexplore.ieee.org/document/10870129/Dual-bandhigh stabilityinterdigital capacitormicrowave sensorsingle-port resonator |
| spellingShingle | Syah Alam Indra Surjati Lydia Sari Raden Deiny Mardian Teguh Firmansyah Muhammad Iqbal Slamet Widodo Mudrik Alaydrus Zahriladha Zakaria High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline IEEE Access Dual-band high stability interdigital capacitor microwave sensor single-port resonator |
| title | High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline |
| title_full | High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline |
| title_fullStr | High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline |
| title_full_unstemmed | High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline |
| title_short | High Stability Single-Port Dual Band Microwave Sensor Based on Interdigital Capacitor Structure With Asymmetry Branch Feedline |
| title_sort | high stability single port dual band microwave sensor based on interdigital capacitor structure with asymmetry branch feedline |
| topic | Dual-band high stability interdigital capacitor microwave sensor single-port resonator |
| url | https://ieeexplore.ieee.org/document/10870129/ |
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