Illmer A, Deublein A, Weigel R, Ackermann T (2024)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2024
Pages Range: 62 - 65
Event location: San Antonio, TX, USA
ISBN: 979-8-3503-1464-9
URI: https://ieeexplore.ieee.org/document/10438601
DOI: 10.1109/PAWR59907.2024.10438601
A linearized calibration technique for wideband characterization of high-efficiency multiple-input transmitter architectures, such as Chireix, outphasing and dual-input Doherty power amplifiers is presented. The proposed three step calibration process, including digital predistortion, is demonstrated for a dual-input setup and 400MHz of signal bandwidth at 3.6 GHz. Simultaneous use of three receivers allows drifts of the measurement setup to be detected in-situ, increasing the reliability of results and protecting vulnerable devices under tests. Destructive interference of 20-MHz and 400-MHz modulated signals at the output of a quadrature hybrid is used to verify the calibrated measurement setup, achieving signal power levels of -37.6 and -23.1 dBc, respectively.
APA:
Illmer, A., Deublein, A., Weigel, R., & Ackermann, T. (2024). A Linearized Calibration Technique Using Modulated Signals for Wideband Dual-Input Doherty Characterization. In Proceedings of the 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) (pp. 62 - 65). San Antonio, TX, USA.
MLA:
Illmer, Andreas, et al. "A Linearized Calibration Technique Using Modulated Signals for Wideband Dual-Input Doherty Characterization." Proceedings of the 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), San Antonio, TX, USA 2024. 62 - 65.
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