This paper describes the design, realization and tests of different Doherty power amplifiers (DPAs) specifically conceived for Ka-band satellite downlink applications, i.e., 17.3 - 20.3 G Hz. In particular, different design strategies have been explored by accounting for the possibility to combine power on-chip at either device or PA level, also exploring the parallel (current summing) and “series” (voltage summing) interconnection of elementary devices. As a result, three DPAs have been implemented on a commercial GaN HEMT process with 100 nm gate length grown on Silicon substrate. Pros and cons of these different solutions will be highlighted by presenting the main design steps and the preliminary experimental results.

Piacibello, A., Colantonio, P., Giofre, R., Camarchia, V. (2022). Doherty Power Amplifiers for Ka-Band Satellite Downlink. In 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) (pp.18-21). IEEE [10.1109/PAWR53092.2022.9719849].

Doherty Power Amplifiers for Ka-Band Satellite Downlink

Colantonio, Paolo;Giofre, Rocco;
2022

Abstract

This paper describes the design, realization and tests of different Doherty power amplifiers (DPAs) specifically conceived for Ka-band satellite downlink applications, i.e., 17.3 - 20.3 G Hz. In particular, different design strategies have been explored by accounting for the possibility to combine power on-chip at either device or PA level, also exploring the parallel (current summing) and “series” (voltage summing) interconnection of elementary devices. As a result, three DPAs have been implemented on a commercial GaN HEMT process with 100 nm gate length grown on Silicon substrate. Pros and cons of these different solutions will be highlighted by presenting the main design steps and the preliminary experimental results.
2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)
Las Vegas, NV, USA
2022
Rilevanza internazionale
contributo
Settore ING-INF/01
English
Wireless communication; Satellite broadcasting; Stacking; Power amplifiers; Voltage; Downlink; Silicon; Doherty; GaN; high efficiency; linearity; satellite
Intervento a convegno
Piacibello, A., Colantonio, P., Giofre, R., Camarchia, V. (2022). Doherty Power Amplifiers for Ka-Band Satellite Downlink. In 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) (pp.18-21). IEEE [10.1109/PAWR53092.2022.9719849].
Piacibello, A; Colantonio, P; Giofre, R; Camarchia, V
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/289633
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