Title :
EMC Computer Modeling Techniques for CPU Heat Sink Simulation
Author :
Lu, Junwei ; Dawson, Francis
Author_Institution :
Fac. of EIT, Griffith Univ., Brisbane, Qld.
Abstract :
This paper presents finite-element frequency domain results for electromagnetic radiation emitted from high power microelectronic circuits connected to a heat sink. The heat sink model associated with one of the IEEE EMC challenging problems has been used to investigate three different grounding configurations. A new simulation model for the Intel P4 CPU heat sink is proposed and analyzed. A resonant frequency of 2.6 GHz with a reflection coefficient of 8.3 dB was found for the CPU heat sink. This is close to the IEEE and Bluetooth wireless communication system´s operating frequency of 2.4 GHz. An optimal design of the CPU heat sink design should be performed in order to minimize the radiated emission from the CPU heat sink
Keywords :
electromagnetic compatibility; finite element analysis; frequency-domain analysis; heat sinks; microprocessor chips; 2.6 GHz; CPU heat sink; EMC; electromagnetic radiation; grounding configurations; high power microelectronic circuits; Central Processing Unit; Circuit simulation; Computational modeling; Computer simulation; Electromagnetic compatibility; Electromagnetic radiation; Finite element methods; Frequency domain analysis; Heat sinks; Microelectronics; CPU heat sink; EMC; EMC challenging problem; EMC computer modeling; EMI;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.880092
