Title :
A procedure for the evaluation of radiated emissions from polygonal wires with the method of moments
Author :
Coghetto, M. ; Offelli, C.
Author_Institution :
Dept. of Electron. & Comput. Sci., Padova Univ., Italy
Abstract :
A procedure for numeric evaluation of radiated emissions from polygonal wire antennas is presented in an EMC context. The propagation problem is solved with an application of the well-known method of moments, using piecewise sinusoidal expansion functions. The availability of closed-form expressions for the radiated fields from linear dipoles with a piecewise sinusoidal current distribution and the superposition principle allow an accurate evaluation of the radiated field from a polygonal wire antenna. The presence of angles introduces a drawback that has been solved imposing a condition of continuity for the current, that is, by applying the Kirchhoff´s current law. Some numerical results for a practical application are presented and discussed
Keywords :
dipole antennas; electromagnetic compatibility; electromagnetic fields; electromagnetic interference; integro-differential equations; method of moments; wire antennas; EMC; Kirchhoff´s current law; Pocklington´s integrodifferential equation; closed-form expressions; current continuity; linear dipoles; method of moments; piecewise sinusoidal current distribution; piecewise sinusoidal expansion functions; polygonal wire antennas; propagation problem; radiated emissions; radiated field; radiated fields; superposition principle; Antennas and propagation; Current distribution; Dipole antennas; Electromagnetic compatibility; Electromagnetic radiation; Integral equations; Message-oriented middleware; Moment methods; Telephony; Wires;
Conference_Titel :
Electromagnetic Compatibility, 1999 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5057-X
DOI :
10.1109/ISEMC.1999.812923
