Characteristic Spherical Wave Expansion With Application to Scattering and Radiation Problems

The aim of this letter is to present the creation of a new set of harmonics based on spherical waves (SWs). They are generated depending on the elements under analysis in an analogous way to the one employed in the generation of characteristic basis functions. The new set of waves enables us to mode...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2009, Vol.8, p.599-602
Main Authors: Laviada, J., Pino, M.R., Las-Heras, F.
Format: Article
Language:English
Subjects:
Accuracy
Algorithm design and analysis
Antenna measurements
Antennas
Basis functions
Character generation
Characteristic basis functions
direct solution
Geometry
Harmonics
Scattering
Size control
spherical harmonics
Spherical waves
Voltage
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Summary:The aim of this letter is to present the creation of a new set of harmonics based on spherical waves (SWs). They are generated depending on the elements under analysis in an analogous way to the one employed in the generation of characteristic basis functions. The new set of waves enables us to model the fields radiated or scattered by an element in a more efficient way. As an example, we apply this expansion to reduce the number of unknowns when analyzing multiple elements in both scattering and radiation problems. Results show a very good agreement with reference results and with measurement from the open literature.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2009.2021285