Research Article
Year 2018,
Volume: 23 Issue: 3, 143 - 154, 31.12.2018
Abstract
In this study, the
time-domain vector finite element method (TDFEM) was used to
calculate the electrical shielding effectiveness of electronic device
boxes with aperture. The results obtained were compared with the literature and found to be
compatible. With an effect of reducing the quality of the protectors,
radiation fields from aperture are not desired. The change in shielding
effectiveness has been investigated by inserting perfectly conductive wires and
part conductors on the aperture. A boost of about 20 dB between 500-900 MHz has
been achieved.
Keywords
Electromagnetic Interference (EMI) Shielding Effectiveness(SE) Time Domain Finite Element Method(TDFEM)
References
- Başyigit, I. B., Tosun, P. D., Ozen, S. ve Helhel, S. (2011) An affect of the aperture length to aperture width ratio on broadband shielding effectiveness, URSI GASS 2011, Bursa, 1(1). doi:10.1109/URSIGASS.2011.6050756
- Basyigit, I. B., Dogan, H. ve Helhel, S. (2017) Simulation of metallic enclosures with apertures on electrical shielding effectiveness, ELECO 2017 10th International Conference on Electrical and Electronics Engineering, Bursa, 1(1), 1082-1084.
- Belokour, I., LoVetri, J., ve Kashyap, S. (2000) Shielding effectiveness estimation of enclosures with apertures, IEEE International Symposium, 2, 855-860. doi:10.1109/ISEMC.2000.874734
- Carpes, W.P. ve ark.(2000) TLM and FEM Methods applied in the Analysis of electromagnetic coupling, IEEE Transactions on Magnetics, 36(4), 982-985. doi:10.1109/20.877606
- Carpes Jr, W. P., Pichon, L. ve Razek, A. (2000) A 3D finite element method for the modelling of bounded and unbounded electromagnetic problems in the time domain, International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 13(6), 527-540. doi:10.1002/1099-1204(200011/12)13:6<527::AID-JNM391>3.0.CO;2-V
- Carpes, W. P., Pichon, L. ve Razek, A. (2002) Analysis of the coupling of an incident wave with a wire inside a cavity using an FEM in frequency and time domains, IEEE Transactions on Electromagnetic Compatibility, 44(3), 470-475. doi:10.1109/TEMC.2002.801767
- Cerri, G., De Leo, R. ve Primiani, V. M. (1992) Theoretical and experimental evaluation of the electromagnetic radiation from apertures in shielded enclosure, IEEE Transactions on Electromagnetic Compatibility, 34(4), 423-432. doi:10.1109/15.179275
- De Smedt, R. ve ark.(2002) Effect of a board on the shielding effectiveness of a Box, Emc Europe 2002 International Symposium On Electromagnetic Compatibility, Sorrento, 341-345.
- Erbaş, C. ve Kent, S. (2003) Shielding effectiveness of a rectangular cavity with aperture between 1-3 GHz, IEEE International Symposium on Electromagnetic Compatibility, 1,343-346. doi:10.1109/ICSMC2.2003.1428261
- Feng, C. ve Shen, Z. (2005) A hybrid FD-MoM technique for predicting shielding effectiveness of metallic enclosures with apertures, IEEE Transactions on Electromagnetic Compatibility, 47(3), 456-462. doi:10.1109/TEMC.2005.851726
- Güler, S. (2007) Elektromanyetik uyumluluk tekniklerinde elektromanyetik ışımanın modellenmesi, Uludağ üniversitesi, Fen Bilimleri Enstitüsü, Doktora Tezi.
- Harrington, R. (1982) Resonant behavior of a small aperture backed by a conducting body, IEEE Transactions on Antennas and Propagation, 30(2), 205-212. doi:10.1109/TAP.1982.1142761
- Hill, D.A. ve ark.(1994) Aperture excitation of electrically large, lossy cavities, IEEE Transactions on EMC, 36(3), 169-178. doi: 10.1109/15.305461
- Jin, J.M.(1993) The Finite Element Method in Electromagnetics, Wiley.
- Kim S. ve Lee J.(2007) Shielding effectiveness of an enclosure with a dielectric-backed aperture, Microwave Conference, Asia-Pacific,1-4. doi: 10.1109/APMC.2007.4554856
- Kubík, Z. ve Skála, J. (2016) Shielding Effectiveness Simulation of Small Perforated Shielding Enclosures Using FEM, Energies, 9(3), 129. doi:10.3390/en9030129
- Li, M. ve ark.(2000) EMI from cavity modes of shielding enclosures-FDTD modelling and measurements, IEEE Transactions on Electromagnetic Compatibility, 42(1), 29-38. doi:10.1109/15.831702
- Mendez, H. A. (1978) Shielding theory of enclosures with apertures, IEEE Transactions on Electromagnetic Compatibility, 2, 296-305. doi:10.1109/TEMC.1978.303722
- Ozyalcin, M. O., Sevgi, L. ve Topuz, E. (2003) Validation Tests for transmission Line Matrix Method in EMC Calculations, The 2003 IEEE Int. Symposium on EMC, İstanbul, 2, 1277-1280. doi:10.1109/ICSMC2.2003.1429153
- Robinson, M.P. ve ark.(1998) Analytical formulation for the shielding effectiveness of enclosures with apertures, IEEE Transactions on EMC, 40(3), 240-247. doi:10.1109/15.709422
- Siah, E.S. ve ark.(2003) Coupling studies and shielding techniques for electromagnetic penetration through apertures on complex cavities and vehicular platforms, IEEE Transactions on Electromagnetic Compatibility, 45(2), 245-256. doi:10.1109/TEMC.2003.810814
- Thomas, D.W.P. ve ark.(1999) Characterisation of the shielding effectiveness of loaded equipment enclosures, IEE EMC York 99 Conference Publication, 464, 89-94. doi:10.1049/cp:19990250
- Wang,H. ve ark.(2003) Impedance boundary conditions in a hybrid FEM/MOM formulation, IEEE Transactions on Electromagnetic Compatibility, 45(2), 198-206. doi:10.1109/TEMC.2003.810813
- Wang, Y.J. ve ark.(2002) Electromagnetic coupling analysis of transient signal through slots or apertures perforated in a shielding metallic enclosure using FDTD Methodology, Progress in Electromagnetics Research, 36, 247-264. doi: 10.2528/PIER02021701
- Yenikaya, S. ve Akman, A. (2009) Hybrid MoM/FEM modeling of loaded enclosure with aperture in EMC problems. International Journal of RF and Microwave Computer‐Aided Engineering, The University of Colorado, Boulder, 19 (2), 204-210. doi:10.1002/mmce.20341
Year 2018,
Volume: 23 Issue: 3, 143 - 154, 31.12.2018
Abstract
Bu çalışmada açıklığa sahip elektronik cihaz kutularının
elektriksel ekranlama etkinliğini hesaplamak için zaman domeni vektör sonlu
elemanlar metodu (TDFEM) kullanılmıştır. Elde edilen sonuçlar literatür
ile karşılaştırılmış ve uyumlu olduğu görülmüştür. Açıklıklardan ışıyan
alanlar, koruyucunun kalitesini düşürdüğü için istenmemektedir. Açıklık üzerine
mükemmel iletken teller ve parça iletkenler yerleştirilerek ekranlama
etkinliğindeki değişim incelenmiştir. 500-900 MHz arasında yaklaşık 20 dB’ lik
bir ekranlama artışı sağlanmıştır.
References
- Başyigit, I. B., Tosun, P. D., Ozen, S. ve Helhel, S. (2011) An affect of the aperture length to aperture width ratio on broadband shielding effectiveness, URSI GASS 2011, Bursa, 1(1). doi:10.1109/URSIGASS.2011.6050756
- Basyigit, I. B., Dogan, H. ve Helhel, S. (2017) Simulation of metallic enclosures with apertures on electrical shielding effectiveness, ELECO 2017 10th International Conference on Electrical and Electronics Engineering, Bursa, 1(1), 1082-1084.
- Belokour, I., LoVetri, J., ve Kashyap, S. (2000) Shielding effectiveness estimation of enclosures with apertures, IEEE International Symposium, 2, 855-860. doi:10.1109/ISEMC.2000.874734
- Carpes, W.P. ve ark.(2000) TLM and FEM Methods applied in the Analysis of electromagnetic coupling, IEEE Transactions on Magnetics, 36(4), 982-985. doi:10.1109/20.877606
- Carpes Jr, W. P., Pichon, L. ve Razek, A. (2000) A 3D finite element method for the modelling of bounded and unbounded electromagnetic problems in the time domain, International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 13(6), 527-540. doi:10.1002/1099-1204(200011/12)13:6<527::AID-JNM391>3.0.CO;2-V
- Carpes, W. P., Pichon, L. ve Razek, A. (2002) Analysis of the coupling of an incident wave with a wire inside a cavity using an FEM in frequency and time domains, IEEE Transactions on Electromagnetic Compatibility, 44(3), 470-475. doi:10.1109/TEMC.2002.801767
- Cerri, G., De Leo, R. ve Primiani, V. M. (1992) Theoretical and experimental evaluation of the electromagnetic radiation from apertures in shielded enclosure, IEEE Transactions on Electromagnetic Compatibility, 34(4), 423-432. doi:10.1109/15.179275
- De Smedt, R. ve ark.(2002) Effect of a board on the shielding effectiveness of a Box, Emc Europe 2002 International Symposium On Electromagnetic Compatibility, Sorrento, 341-345.
- Erbaş, C. ve Kent, S. (2003) Shielding effectiveness of a rectangular cavity with aperture between 1-3 GHz, IEEE International Symposium on Electromagnetic Compatibility, 1,343-346. doi:10.1109/ICSMC2.2003.1428261
- Feng, C. ve Shen, Z. (2005) A hybrid FD-MoM technique for predicting shielding effectiveness of metallic enclosures with apertures, IEEE Transactions on Electromagnetic Compatibility, 47(3), 456-462. doi:10.1109/TEMC.2005.851726
- Güler, S. (2007) Elektromanyetik uyumluluk tekniklerinde elektromanyetik ışımanın modellenmesi, Uludağ üniversitesi, Fen Bilimleri Enstitüsü, Doktora Tezi.
- Harrington, R. (1982) Resonant behavior of a small aperture backed by a conducting body, IEEE Transactions on Antennas and Propagation, 30(2), 205-212. doi:10.1109/TAP.1982.1142761
- Hill, D.A. ve ark.(1994) Aperture excitation of electrically large, lossy cavities, IEEE Transactions on EMC, 36(3), 169-178. doi: 10.1109/15.305461
- Jin, J.M.(1993) The Finite Element Method in Electromagnetics, Wiley.
- Kim S. ve Lee J.(2007) Shielding effectiveness of an enclosure with a dielectric-backed aperture, Microwave Conference, Asia-Pacific,1-4. doi: 10.1109/APMC.2007.4554856
- Kubík, Z. ve Skála, J. (2016) Shielding Effectiveness Simulation of Small Perforated Shielding Enclosures Using FEM, Energies, 9(3), 129. doi:10.3390/en9030129
- Li, M. ve ark.(2000) EMI from cavity modes of shielding enclosures-FDTD modelling and measurements, IEEE Transactions on Electromagnetic Compatibility, 42(1), 29-38. doi:10.1109/15.831702
- Mendez, H. A. (1978) Shielding theory of enclosures with apertures, IEEE Transactions on Electromagnetic Compatibility, 2, 296-305. doi:10.1109/TEMC.1978.303722
- Ozyalcin, M. O., Sevgi, L. ve Topuz, E. (2003) Validation Tests for transmission Line Matrix Method in EMC Calculations, The 2003 IEEE Int. Symposium on EMC, İstanbul, 2, 1277-1280. doi:10.1109/ICSMC2.2003.1429153
- Robinson, M.P. ve ark.(1998) Analytical formulation for the shielding effectiveness of enclosures with apertures, IEEE Transactions on EMC, 40(3), 240-247. doi:10.1109/15.709422
- Siah, E.S. ve ark.(2003) Coupling studies and shielding techniques for electromagnetic penetration through apertures on complex cavities and vehicular platforms, IEEE Transactions on Electromagnetic Compatibility, 45(2), 245-256. doi:10.1109/TEMC.2003.810814
- Thomas, D.W.P. ve ark.(1999) Characterisation of the shielding effectiveness of loaded equipment enclosures, IEE EMC York 99 Conference Publication, 464, 89-94. doi:10.1049/cp:19990250
- Wang,H. ve ark.(2003) Impedance boundary conditions in a hybrid FEM/MOM formulation, IEEE Transactions on Electromagnetic Compatibility, 45(2), 198-206. doi:10.1109/TEMC.2003.810813
- Wang, Y.J. ve ark.(2002) Electromagnetic coupling analysis of transient signal through slots or apertures perforated in a shielding metallic enclosure using FDTD Methodology, Progress in Electromagnetics Research, 36, 247-264. doi: 10.2528/PIER02021701
- Yenikaya, S. ve Akman, A. (2009) Hybrid MoM/FEM modeling of loaded enclosure with aperture in EMC problems. International Journal of RF and Microwave Computer‐Aided Engineering, The University of Colorado, Boulder, 19 (2), 204-210. doi:10.1002/mmce.20341
There are 25 citations in total.
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | December 31, 2018 |
| Submission Date | January 18, 2018 |
| Acceptance Date | October 27, 2018 |
| Published in Issue | Year 2018 Volume: 23 Issue: 3 |
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