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Journal of Microwaves, Optoelectronics and Electromagnetic Applications
On-line version ISSN 2179-1074
SANTOS JR., Mario. A. et al. A load effect evaluation of a transmission line exciting chamber. J. Microw. Optoelectron. Electromagn. Appl. [online]. 2011, vol.10, n.1, pp. 42-54. ISSN 2179-1074. http://dx.doi.org/10.1590/S2179-10742011000100005.
This paper presents an evaluation of the phase shifting excitation and load effects in a Transmission Line Exciting Chamber. This chamber is suggested as an alternative for immunity tests because of the restrictions related to canonical chambers. Here, two methods are used to calculate the E-field: a semi-analytic approach and a numerical one. The semi-analytic method is based on the modal expansion while a software is used for numerical simulations. The results regarding the E-field profile and the related statistical indexes of merit are presented and used to evaluate the chamber performances. Experiments were also conducted in order to evaluate the chamber.
Keywords : Reverberation chamber; random excitations and loads; transmission lines.