A Ka-Band Power Amplifier with Reconfigurable Impedance Matching Network
| Autor: | Asad Ali Nawaz, John D. Albrecht, A. Cagri Ulusoy |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Computer science
Amplifier 020208 electrical & electronic engineering Transistor Impedance matching 020206 networking & telecommunications 02 engineering and technology law.invention Power (physics) law Transmission line 0202 electrical engineering electronic engineering information engineering Electronic engineering Ka band Antenna (radio) Electrical impedance |
| Zdroj: | 2019 IEEE 19th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF). |
| DOI: | 10.1109/sirf.2019.8709092 |
| Popis: | A tunable matching network integrated with the power amplifier (PA) is described that can adapt to potential impedance variations presented by the antenna. The matching network is designed to match loads within half-gamma around nominal 50-$\Omega$ impedance. The tunability is achieved by modifying the length of transmission line segments within the matching network by using reverse saturated SiGe switches. S-parameters and load-pull measurements have been obtained and demonstrate that the PA is able to adapt to different load impedances, therefore is able provide constant PAE and output power at a significantly extended range of impedance variations. In this paper, the design approach is explained that leads to significantly improved performance of the presented PA compared to previously published reconfigurable PAs. |
| Databáze: | OpenAIRE |
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