Abstract
The Bethe coupler is reinvestigated by use of the wavefunction method for the propagation of the electromagnetic waves in waveguides. The directivity of the secondary guide and the coupling factor are derived by computing the transmission coefficients through the hole of the coupler. A comparison is made with the standard results. \textcopyright{} 1996 The American Physical Society.
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More From: Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
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