Far-Field Equivalence Through Equivalent Current Distributions
| Autor: | Inder J. Gupta, Leo Tchorowski |
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| Rok vydání: | 2018 |
| Předmět: |
Current distribution
Computer science Scattering Aperture 020208 electrical & electronic engineering Astrophysics::Instrumentation and Methods for Astrophysics 020206 networking & telecommunications Near and far field 02 engineering and technology 0202 electrical engineering electronic engineering information engineering Signal processing algorithms Algorithm Equivalence (measure theory) Computer Science::Information Theory Ground plane |
| Zdroj: | 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. |
| Popis: | Accurate antenna manifolds are desired for many signal processing algorithms. In situ antenna measurements are the most accurate way to obtain antenna manifolds on the platform of interest, but are often impractical or impossible to obtain. Instead, combinations of simulations and measurements are used to estimate antenna manifolds on platforms. The antenna under test is measured on a ground plane, and measured data is imported into numerical EM codes to include platform scattering. However, the import of the measured antenna data has limited accuracy and/or can lead to large run time in numerical EM codes. We present a new method to represent measured antennas in EM codes through an aperture current distribution of cross-slots and monopoles. Example results show good agreement with truth data when placed on complex platforms. |
| Databáze: | OpenAIRE |
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