Abstract
This paper presents an analysis of using GaN supply-modulated (SM) power amplifier (PA) in an active electronically scanned array (AESA) system to improve system power efficiency. Specifically, the paper details a 4-W X-band GaN SM PA with power-added efficiency (PAE) of above 50% at 9.4 GHz frequency. The proposed PA achieves the PAE of above 35% over 800 MHz bandwidth and 40% in 10 dB output power back-off range. The simulation results show that the system PAE increases about 14–18% at the same condition of the array amplitude distribution and array scales by using GaN SM PA.
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Dai, P.C., Phong, L.D., Tuan, L.V., Nguyen, N.H. (2021). Improving Power Efficiency of AESA System with GaN Supply-Modulated Power Amplifier. In: Vo, NS., Hoang, VP., Vien, QT. (eds) Industrial Networks and Intelligent Systems. INISCOM 2021. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 379. Springer, Cham. https://doi.org/10.1007/978-3-030-77424-0_12
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DOI: https://doi.org/10.1007/978-3-030-77424-0_12
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