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Electromagnetic fields with arbitrary wave impedances generated inside a TEM cell

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3 Author(s)
Ma, M.T. ; Nat. Inst. of Stand. & Technol., Boulder, CO, USA ; Larsen, E.B. ; Crawford, M.L.

It is shown that arbitrary electromagnetic fields and wave impedances can be generated inside a transverse electromagnetic (TEM) cell for RF susceptibility testing. This is achieved by simply exciting one port and terminating the other port with appropriate loads. Thus, TEM cells are not limited to producing a planar field environment with the free-space impedance of 377 Ω, but can also be used to generate high-impedance or low-impedance fields for special testing needs. Experimental results for only three load impedances are described. In principle, many other loads including reactive terminations could be used to create a particularly desired field and wave impedance inside the TEM cell

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Electromagnetic Compatibility, IEEE Transactions on  (Volume:33 ,  Issue: 4 )