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Journals / Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2020 / Cilt: 13 - Sayı: 2

Investigation of Electromagnetic Interference from Cylindrical Heatsinks in Electronic Circuits in 0-10 GHz Frequency Band

Elektronik Devrelerdeki Silindirik Soğutuculardan Kaynaklanan Elektromanyetik Girişimlerinin 0-10 GHz Frekans Bandında Araştırılması

Abdullah GENÇ
İbrahim Bahadır BAŞYİĞİT
Habib DOĞAN
Pages
502–510
Publication Date
2022-10-11
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is also shown that E-field distribution amplitude decrease with frequency increase.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The heatsinks are commonly utilized to keep the temperature of PCB/ICs and electronic devices within a certain range.
📊
Key Findings & Data:In this study, the EMI effects of cylindrical heatsinks used in electronic circuits are investigated for the 0-10 GHz frequency band.
💡
Conclusion & Impact:It is also shown that E-field distribution amplitude decrease with frequency increase.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The heatsinks are commonly utilized to keep the temperature of PCB/ICs and electronic devices within a certain range. Heatsinks are expected to provide both thermally maximum cooling and minimum electromagnetic interference (EMI) to surrounding components. Especially in devices operating at high frequencies, these structures act as antennas if the electrical dimensions of the heatsinks are comparable to the wavelength of the operating frequency. In this study, the EMI effects of cylindrical heatsinks used in electronic circuits are investigated for the 0-10 GHz frequency band. Simulation and measurement results are in good agreement with each other. The reflection coefficient, radiant pattern and E-field distribution of the heatsink are obtained. In addition to that, E-field changes are given depending on the design parameters. The resonance frequency of the proposed heatsink is obtained as 3.75 GHz and depends on the base geometry of the heatsink. It is also shown that E-field distribution amplitude decrease with frequency increase.

Özet

Genellikle soğutucular, PCB/ICs ve elektronik cihazların sıcaklığını belirli bir aralıkta tutmak için yaygın olarak kullanılırlar. Soğutuculardan, hem termal olarak maksimum soğutma hem de çevresindeki komponentlere minimum elektromanyetik girişim (EMI) sağlaması beklenir. Özellikle yüksek frekanslarda çalışan cihazlarda, soğutucuların elektriksel boyutları çalışma frekansının dalga boyuyla karşılaştırılabilir ise bu yapılar anten gibi davranır. Bu çalışmada, elektronik devrelerde kullanılan silindirik yapıdaki soğutucuların EMI davranışları 0-10 GHz frekans bandı için incelenmiştir. Ölçümler tam yansımasız odada gerçekleştirilirken, benzetimler CST MW-Studio benzetim programıyla yapılmış ve elde edilen sonuçlar karşılaştırılmıştır. Benzetim ve ölçüm sonuçlarının birbiri ile uyumlu olduğu görülmüştür. Soğutucunun yansıma katsayısı, ışıma örüntüsü ve E-alan dağılımı elde edilmiştir. Ayrıca tasarım parametrelerine bağlı olarak E-alan değişimleri verilmiştir. Önerilen soğutucunun rezonans frekansı 3,75 GHz olarak elde edilmiş olup ve soğutucunun taban geometrisine bağlıdır. Ayrıca, E-alan dağılım genliğinin frekans artışı ile azaldığı tespit edilmiştir.

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Cite This Article

GENÇ, A., BAŞYİĞİT, İ. B., DOĞAN, H. (2022). Investigation of Electromagnetic Interference from Cylindrical Heatsinks in Electronic Circuits in 0-10 GHz Frequency Band. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 13 - Sayı: 2, 502–510. https://ajindex.com/articles/505467

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