Impact of unshielded cable on radiated electromagnetic in a digital circuit
The issue of electromagnetic compatibility (EMC) compliance is crucial during the design process of a digital circuit board (PCB). This is to control the level of unwanted radiated electomagnetic from the digital circuit board and its interfacing cable. In this paper, radiated emission measurements...
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| Pengarang-pengarang Utama: | , |
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| Format: | Conference or Workshop Item |
| Diterbitkan: |
2010
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| Subjek-subjek: | |
| Capaian Atas Talian: | http://eprints.uthm.edu.my/3007/ |
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| Ringkasan: | The issue of electromagnetic compatibility (EMC) compliance is crucial during the design process of a digital circuit board (PCB). This is to control the level of unwanted radiated electomagnetic from the digital circuit board and its interfacing cable. In this paper, radiated emission measurements in a 3-meter Semi-Anechoic Chamber (SAC) for the digital circuit with unshielded cable attached and its mitigation techniques are presented and discussed. The results show that the emission level higher than the product standard limit due to the radiation from a long interfacing cable. The level can be minimized significantly with the use of a short cable. This means, its behaviour as efficient radiating antennas are reduced. The reduction of emission level also can be achieved by considering the employment of multiples common mode chokes. |
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