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Calculating frequency-domain data by time-domain methods

✍ Scribed by M. Dehler; M. Dohlus; T. Weiland

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 434 KB
Volume: 6
Category: Article
ISSN: 0894-3370
DOI: 10.1002/jnm.1660060104

No coin nor oath required. For personal study only.

✦ Synopsis

We show the derivation of parameters in the frequency domain from time-domain data. Far-field characteristics are obtained by a convolution formula with the harmonic field amplitudes, which are obtained via a Fourier transform or by sampling. The electric field of filter ports is expanded into the discrete eigenmodes. By this method, a monochromatic exact open boundary can be formulated and the fields divided into the incident and the reflected part. For wide band operation an a posteriori error correction scheme is presented.

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