Impact of unshielded cable on radiated electromagnetic in a digital circuit

Md Mustam, Saizalmursidi and Mohd Jenu, Mohd Zarar (2010) Impact of unshielded cable on radiated electromagnetic in a digital circuit. In: Asia Pacific Symposium of Applied Electromagnetics and Mechanics (APSAEM2010), 28-29 July 2010 , Kuala Lumpur.

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Abstract

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.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:electromagnetic compatibility; digital electronic circuit; radiated emission; emission reduction technique
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions:Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
ID Code:3007
Deposited By:Normajihan Abd. Rahman
Deposited On:08 Feb 2013 11:43
Last Modified:21 Jan 2015 15:24

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