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| Load-Pull× | S-Parameter Analyse× | |
|---|---|---|
| Fagområde | Elektroteknik | Elektroteknik |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1990 | 1965 |
| Ophavsperson≠ | Andrew Davidson | Kaneyuki Kurokawa |
| Type≠ | Experimental characterization of power amplifier performance under varying load/source conditions | Wave-based description of RF/microwave network behavior |
| Oprindelig kilde≠ | Cripps, S. C. (1999). RF Power Amplifiers for Wireless Communications. Artech House. link ↗ | Kurokawa, K. (1965). Power waves and the scattering matrix. IEEE Transactions on Microwave Theory and Techniques, 13(3), 194-202. DOI ↗ |
| Aliasser≠ | Load-pull measurement, Source-pull optimization | S-parameter, Scattering parameters, Network parameters |
| Relaterede | 3 | 3 |
| Resumé≠ | Load-Pull is an experimental technique for characterizing and optimizing RF power amplifier performance under varying load and source impedance conditions. Introduced by Davidson et al. in 1990, load-pull measurements vary the load impedance seen by the amplifier while recording output power, efficiency, and linearity. Load-pull reveals contours of constant gain, efficiency, and stability, enabling optimal impedance matching for maximum performance. Essential for power amplifier design and characterization. | S-Parameters (Scattering Parameters) characterize RF and microwave networks by their transmission and reflection of voltage waves. Introduced by Kurokawa in 1965, S-parameters are ideal for high frequencies where wave effects dominate. Unlike impedance (Z), admittance (Y), or hybrid parameters, S-parameters are directly measurable with network analyzers, naturally account for characteristic impedance, and are intuitive for cascade analysis. S-parameters are the standard language of RF engineering. |
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