This paper describes a case study covering the evaluation and reduction of the radiated EMI from an 18" liquid crystal display (LCD) monitor. The evaluation was completed in two parts: first potential EMI sources at the printed circuit board (PCB) level were identified, then the EMI antennas driven by these sources were analyzed. Methods for reducing the EMI were described in detail, and where applicable, those modifications were applied. Radiated measurements demonstrate the effectiveness of these recommendations.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility, 2000


Electrical and Computer Engineering

Keywords and Phrases

0 to 1000 MHz; 18 Inch; 18" LCD Monitor; EMC Analysis; EMI Antennas; EMI Sources; HF Antennas; PCB; UHF Antennas; VHF Antennas; Electromagnetic Compatibility; Interference Suppression; Liquid Crystal Display Monitor; Liquid Crystal Displays; Printed Circuit Board; Printed Circuits; Radiated EMI; Radiated Measurements; Radiofrequency Interference

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2000 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.