A 20W Ka-band radial Solid-State Power Amplifier with 20% associated Power-Added Efficiency

This paper presents a high power and high efficiency Ka-band Solid-State Power Amplifier based on the uses of an efficient radial power-combining structure for space applications. This design was validated by the measurement of a 16-way divider/combiner and the characterization of a 16-way High Powe...

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Bibliographic Details
Published in:	2013 European Microwave Conference pp. 688 - 691
Main Authors:	Fraysse, J.-P, Richard, J., Maignan, M., Soubercaze-Pun, G., Lapierre, L., Denoual, J.-M, Peden, A.
Format:	Conference Proceeding
Language:	English
Published:	European Microwave Association 01-10-2013
Subjects:	amplifier combining technique Loss measurement Microwave amplifiers Microwave integrated circuits Power amplifiers Power generation Power measurement radial SSPA Thermal management
Online Access:	Get full text
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Summary:	This paper presents a high power and high efficiency Ka-band Solid-State Power Amplifier based on the uses of an efficient radial power-combining structure for space applications. This design was validated by the measurement of a 16-way divider/combiner and the characterization of a 16-way High Power Amplifier. Based on the use of 1.3W elementary amplifier modules, the radial HPA delivers an output power higher than 20W with an associated Power-Added Efficiency close to 20% from 35.3GHz to 36.5GHz. The loss of the radial combiner was measured at around 0.3dB. The HPA volume is equivalent to a cylinder of 20cm diameter and 7cm height.
DOI:	10.23919/EuMC.2013.6686749