Numerical Analysis of Electromagnetic Fields in TEM Cells

TEM CELL에서의 전자장 수치해석

  • 이애경 (중앙대학교 전자공학과) ;
  • 이상회 (대유공업전문대학 전자과) ;
  • 김정기 (중앙대학교 전자공학과)
  • Published : 1991.03.01


The electromagnetic field distribution within rectangular coaxial transmission lines (RCTL:TEM cells) is calculated using a numerical method. Boundary integral equations(BIE) considering equivalence theorem and extended boundary condition(EBC) in tapered region are used, thereby restricting the operational frequencies (0~130 MHz) below the cell cutoff frequency(130 MHz). The EM fields within NIST TEM cell ($1\times0.6\times2m$) are calculated by this method. The results of the numerical calcuation have a good agreement in the cross-sectional EM field distribution of TEM cell with 2-dimensional analysis results. Based on this method, the first cutoff freque- ncy in high order modes in the cell and the electric field polarization are considered.