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- BildiriYalnız künye2015Evaluation of electromagnetic interference emitted from compact fluorescent lamps according to CISPR-15
Kocakusak, A.; Cakir, M.; Yalcin, S.; Ozen, S.; Helhel, S.
In this study, Electromagnetic interference (EMI) emitted by the compact fluorescent lamps (CFL) having biggest pie in the market has been investigated according to CISPR-15. Emissions of CFLs vary depending on trademark, since some cannot provide the requirements of CISPR-15 standards such that they act as contaminants in the electric supply system. Conducted analysis considering the limits of CISPR-15 at 150-500 kHz frequency brings out that the effect of CFL produced by Company A at 181.298 kHz is 83.94 dBμV, whereas the effect of CFL produced by Company D at 173.593kHz frequency is 49,92dBμV, respectively. Obtained results are out of CISPR-15 limits of 66-56 dBμV.
AtıfScopus2
İncele - BildiriYalnız künye2014Application of S-UTD-CH model into multiple diffraction scenarios at 900MHz
Tabakcioglu, Mehmet Baris; Ayberkin, Doruk
In this study, propagation prediction models based on ray tracing in coverage estimation for broadcasting systems are compared with respect to computation time and accuracy. Uniform Theory of Diffraction (UTD), Slope Diffraction (S-UTD) and Slope UTD with Convex Hull (S-UTD-CH) models are compared for computation time and propagation path loss. Moreover in this study, effects of transmitter height to relative path loss at the receiver are analyzed. S-UTD-CH model is optimum model with respect to computation time and relative path loss.
- DergiProgress in Electromagnetics Research Symposium