Hybrid Supply Modulator for High Power RF PA with Non-Inverting Amplifier

In this paper, we design a Hybrid Supply Modulator (HSM) based on Non-Inverting Amplifier for High Power Amplifier (HPA) operating in C-band. Compared with the conventional HSM, the Switching stage and the R-sense stage are eliminated to prevent the power consumption, and the Non-Inverting Amplifier...

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Bibliographic Details
Main Authors: Ha, Kun Hee, Jung, Il Ho, Kang, Ho Jin, Lee, Jin Seop, Kim, Yu Min, Cho, Choon Sik
Format: Conference Proceeding
Language:English
Subjects:
High Power Amplifier(HPA)
Hybrid Supply Modulator (HSM)
Non-Inverting Amplifier
Switching stage
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Summary:In this paper, we design a Hybrid Supply Modulator (HSM) based on Non-Inverting Amplifier for High Power Amplifier (HPA) operating in C-band. Compared with the conventional HSM, the Switching stage and the R-sense stage are eliminated to prevent the power consumption, and the Non-Inverting Amplifier is applied to the linear stage. The proposed HSM consists of and Envelope Detector, Non-Inverting Amplifier and Push-Pull stage. By eliminating the Switching stage, the power consumed by the R-sense is prevented and the bias power consumption is reduced while maintaining the power modulation performance by applying the Non-Inverting Amplifier. The HSM achieved 45.9 dBm (39.8W) of output power and 93% efficiency at a supply voltage of 50V.
ISSN:2643-6795
DOI:10.1109/CAMA47423.2019.8959724