A simple closed-form expression for a non-redundant Complex Source Point (CSP) beam expansion of an arbitrary electromagnetic field is derived. The expansion process consists of two steps: first, a particular form of the equivalence principle is applied to a sphere enclosing the real sources, and a continuous equivalent electric current distribution is obtained; then, the continuous current is extended to complex space and properly filtered and sampled to generate the discrete set of CSP coefficients. The final result is an exact field representation suitable for arbitrary radiated fields, and optimal if the source is highly directional and/or the observation domain is restricted.

Martini, E., Carli, G., & Maci, S. (2010). A direct non redundant complex source point expansion of the electromagnetic field radiated by an arbitrary source. In EuCAP 2010 - The 4th European Conference on Antennas and Propagation. New York : IEEE.

A direct non redundant complex source point expansion of the electromagnetic field radiated by an arbitrary source

Martini, Enrica;Carli, Giacomo;Maci, Stefano
2010

Abstract

A simple closed-form expression for a non-redundant Complex Source Point (CSP) beam expansion of an arbitrary electromagnetic field is derived. The expansion process consists of two steps: first, a particular form of the equivalence principle is applied to a sphere enclosing the real sources, and a continuous equivalent electric current distribution is obtained; then, the continuous current is extended to complex space and properly filtered and sampled to generate the discrete set of CSP coefficients. The final result is an exact field representation suitable for arbitrary radiated fields, and optimal if the source is highly directional and/or the observation domain is restricted.
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Martini, E., Carli, G., & Maci, S. (2010). A direct non redundant complex source point expansion of the electromagnetic field radiated by an arbitrary source. In EuCAP 2010 - The 4th European Conference on Antennas and Propagation. New York : IEEE.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/1026845