A Highly Efficient and Compact 6kW GaN Solid-State Microwave Generator for CW 2.45 GHz Applications

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  • Author: Haesoo Jeong, Taesan Yoon, Hojoon Yoo, Hyeonsuk Jung , Samuel Cho

This paper describes a 2.45GHz 6kW CW GaN solid state microwave generator development which was mainly focused on it’s compact size (507 x 392.4 x 192mm (L x W x H)) with 56% of high SSPA head efficiency. The core part of this microwave generator, GaN on SiC transistor operates as a class B amplifier to maximize efficiency, 74%. Entire design process of this microwave generator, packaging of a transistor, SSPA design, output power combining, exterior design and software control is optimized to generate a stable 6kW continuous wave signal.

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