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손형길(Hyung Kil Sohn),이춘성(Chunsung Lee),이건준(Kun-Joon Lee),정한경(Han Kyung Jung) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
In this paper, a solid-state power amplifier (SSPA) was developed for ku-band tracking radar. The SSPA consists of a driving amplifier, a power divider, 16 unit power amplifiers, and a spatial power combiner. First, the main power amplifiers of 80W as components of the SSPA are designed and developed using GaN HEMT devices. Then, the output of a single SSPA is obtained by combining 16 main power amplifiers using a 16-way spatial power combiner. The developed SSPA shows an output of 60dBm in the Ku-band. This kind of SSPA can be applied to high-power applications of tracking radars, marine radar and multi-function radar, etc.