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A GaN based highly integrated Solid State Power Amplifier (SSPA) is developed for S-band radar applications. The power amplifier delivers more than 1 KW within a 400 MHz bandwidth with 55 dB gain and a typical 34% PAE. The SSPA includes a negative voltage supply, sequential bias circuit, and temperature sensor circuit. Its compact and lightweight design is suitable for many radar applications.
A 1kW Solid State Power Amplifier (SSPA) is proposed for achieving high power and high efficiency using Gallium Nitride (GaN) technology for L-band radar applications. Measured results showed more than 1 kW within a 200 MHz bandwidth with 53 dB gain and a typical 50% drain efficiency. The SSPA realizes a negative voltage supply, sequential bias circuit, temperature sensor circuit, and external switching...
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