Abstract
Abstract
A design method of solid-state amplifier based on hybrid power-combining technique is presented in this paper. Also a 360-W pulsed solid-state power amplifier (PSSPA) constituted of 32 monolithic-microwave integrated-circuit power amplifiers (MMIC PA) operating in Ku band is designed successfully using this method. The PSSPA mainly consists of three stages of power-combining circuits and one stage of Wilkinson power-amplify module array. The power-combining circuits are respectively based on rectangular waveguide, coaxial line and microstrip line. The proposed combiner structures have the advantages of high power capacity, high power-combining efficiency and easy heat sink design. The measured results indicated that, in the frequency range of 15.5 GHz-16.5 GHz, the average output power is 362 W and the average active power-combining efficiency is 86.95%.
Subject
General Physics and Astronomy
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