Minimizing the variability of characteristic impedances in multisection quarter-wavelength transformers
| Autor: | M. Vicente-Lozano, E. Moreno, Francisco J. Ares-Pena |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Engineering
business.industry Mathematical analysis Electrical engineering Condensed Matter Physics Atomic and Molecular Physics and Optics Characteristic impedance Electronic Optical and Magnetic Materials law.invention Wavelength law Simulated annealing Electrical and Electronic Engineering Reflection coefficient Transformer business Electrical impedance Microwave Voltage |
| Zdroj: | Microwave and Optical Technology Letters. 23:194-196 |
| ISSN: | 1098-2760 0895-2477 |
| DOI: | 10.1002/(sici)1098-2760(19991105)23:3<194::aid-mop19>3.0.co;2-0 |
| Popis: | The widely used first-order polynomial representation of the voltage reflection coefficient in multisection quarter-wavelength transformers is assumed. The roots of this polynomial are displaced iteratively to obtain, through the simulated annealing technique, low variability between the characteristic impedances of adjacent transformers. Besides, for each problem configuration, the bandwidth is maintained close to its maximum possible value. An example is presented showing a decrease in the characteristic impedance variability of the transformers. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 23: 194–196, 1999. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text