Analysis of the Metallic Enclosure with Aperture Using Time Domain Finite Element Method(TDFEM)

Öz

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.

Anahtar Kelimeler

• Electromagnetic Interference (EMI),Shielding Effectiveness(SE),Time Domain Finite Element Method(TDFEM)

AÇIKLIĞA SAHİP METALİK KUTULARIN ZAMAN DOMENİ SONLU ELEMANLAR YÖNTEMİ(TDFEM) İLE ANALİZİ

Öz

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.

Anahtar Kelimeler

• Elektromanyetik Girişim,Ekranlama Etkinliği,Zaman Domeni Sonlu Elemanlar Yöntemi

Kaynakça

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