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EnglishTable-look-up modeling of microwave electron devices needs data interpolation algorithms with specific requirements. In the paper, an original data approximating formula is adopted in the framework of a well-known LUT-based nonlinear device model. Accurate intermodulation distortion prediction for highly linear power amplifier design is proven to be strongly dependent on the data interpolation/ approximation. The proposed procedure provides more accurate reconstruction of sampled functions and related derivatives than conventional splines. The LUT-based model is shown to provide accurate predictions of the third order intermodulation product even at extremely low levels.
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| Titolo: | Optimal function approximation for empirical look-up-table device models |
| Autori: | |
| Data di pubblicazione: | 2007 |
| Abstract: | Table-look-up modeling of microwave electron devices needs data interpolation algorithms with specific requirements. In the paper, an original data approximating formula is adopted in the framework of a well-known LUT-based nonlinear device model. Accurate intermodulation distortion prediction for highly linear power amplifier design is proven to be strongly dependent on the data interpolation/ approximation. The proposed procedure provides more accurate reconstruction of sampled functions and related derivatives than conventional splines. The LUT-based model is shown to provide accurate predictions of the third order intermodulation product even at extremely low levels. |
| Handle: | http://hdl.handle.net/11392/524265 |
| ISBN: | 9788854814769 |
| Appare nelle tipologie: | 04.2 Contributi in atti di convegno (in Volume) |
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