The current trend in satellite communications is moving toward high carrier frequencies and complex modulated signals, which have a nonconstant envelope, such as quadrature amplitude modulation and orthogonal frequency division multiplexing. This trend has a significant impact on the design of the transmitter and in particular of the power amplifier (PA) from both the energy consumption and linearity standpoints. Energy-efficient PAs are crucial for reducing the cost of satellite transmitters. Poor efficiency can negatively impact power budget, thermal design, and weight.

Gallium Nitride Power Amplifiers for Ka-Band Satcom Applications: Requirements, Trends, and the Way Forward / Giofrè, Rocco; Piacibello, Anna; Colantonio, Paolo; Camarchia, Vittorio. - In: IEEE MICROWAVE MAGAZINE. - ISSN 1527-3342. - ELETTRONICO. - 24:12(2023), pp. 74-86. [10.1109/MMM.2023.3314321]

Gallium Nitride Power Amplifiers for Ka-Band Satcom Applications: Requirements, Trends, and the Way Forward

Anna Piacibello;Vittorio Camarchia
2023

Abstract

The current trend in satellite communications is moving toward high carrier frequencies and complex modulated signals, which have a nonconstant envelope, such as quadrature amplitude modulation and orthogonal frequency division multiplexing. This trend has a significant impact on the design of the transmitter and in particular of the power amplifier (PA) from both the energy consumption and linearity standpoints. Energy-efficient PAs are crucial for reducing the cost of satellite transmitters. Poor efficiency can negatively impact power budget, thermal design, and weight.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2983828