Integrated Cartesian Feedback with Automatic Phase Adjustment and Power Amplifier
| Autor: | Alexey N. Liashuk, Rodion R. Fakhrutdinov, Sergey A. Zavyalov, Konstantiv V. Murasov |
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| Rok vydání: | 2020 |
| Předmět: |
Computer science
Amplifier 020208 electrical & electronic engineering Phase (waves) 020206 networking & telecommunications 02 engineering and technology Phase detector QAM CMOS Linearization Delay-locked loop 0202 electrical engineering electronic engineering information engineering Electronic engineering Intermodulation |
| Zdroj: | 2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM). |
| DOI: | 10.1109/edm49804.2020.9153504 |
| Popis: | When using modern spectrally-efficient modulation, such as QAM, APSK, etc with a high peak-factor, linear power amplifiers are required. One of the linearization methods is the Cartesian feedback, which effectively suppress the 3rd-order intermodulation components, provided that the phase in the loop is accurately settled. In article, the results of development integrated Cartesian feedback with automatic phase adjustment and 5-mW power amplifier are described. The frequency range is 0.4...30 MHz. Phase error does not exceed 5 degrees. The amplifier with a linearization system is designed in process 180 nm CMOS. |
| Databáze: | OpenAIRE |
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