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http://dx.doi.org/10.5515/KJKIEES.2012.23.4.507

Analysis of Resonant Characteristics for a Metallic Shielding Enclosure with a PCB Source  

Cho, Byung-Doo (Department of Optical Solution, LG Innotek)
Kim, Ki-Chai (Department of Electrical Engineering, Yeungnam University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.4, 2012 , pp. 507-514 More about this Journal
Abstract
This paper proposed the analysis method of the cavity resonance characteristics for a metallic enclosure with a PCB trace source. In order to calculation the electromagnetic fields inside the cavity, coupled integral equations for a current distribution on the PCB trace and an aperture electric field distribution on the boundary of the PCB dielectric are derived and solved by applying Galerkin's method of moments. The result show that the resonant characteristics of the metallic enclosure are fairly good agreement with the simulation(HFSS) and the measured results. The resonant frequencies of the metallic enclosure with the PCB trace are changed by the PCB trace location inside of the cavity. In order to check the validity of the theoretical analysis, the calculated return losses are compared with the measured results.
Keywords
Cavity with PCB Trace; Cavity Resonance; Method of Moments;
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