Narrowband amplifier with excellent power combining efficiency |
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| Authors: | Song K. Fan Y. He Z. |
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| Affiliation: | Univ. of Electron. Sci. & Technol. of China, Chengdu; |
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| Abstract: | Based on a coaxial waveguide power-dividing/combining circuit, a four-device solid-state power amplifier with excellent power combining efficiency is presented. The fabricated power amplifier combining four monolithic microwave integrated circuit power amplifiers shows a 13-16.65 dB small-signal gain over a wide bandwidth of 7-13.5 GHz. The measured maximum output power at 1 dB compression is 25.4 dBm at 11 GHz, with a power-combining efficiency of 91%. |
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