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In this paper are the results of simulation of matching networks for power MESFET's are presented. The technique of modeling is based on substitution of coupled microstrip by equivalent single microstrip placed inside magnet field webs. The designated power MESFET has L-C-L type matching networks. The lumped capacitors were realized as parallel plate capacitors on 0.3 mm thick ceramic substrates,...
High power pulse solid-state hybrid amplifier has been developed for two centimeter wavelength band. Applied at module design have been all HF components of R&PC "lstok". Amplifiers show 38divide40 dB gain and output power 9divide11 W at modulation time tau=15 mus and relative pulse duration Q=10. Amplitude and phase noise is less than -135 dB/Hz and -120 dB/Hz accordingly at 5 kHz frequency...
A series of high output power hermetically sealed, internally matched FETs for 10, 5, 3, 2 cm wave length band with output power higher than 10, 10, 5, 5 W, associated gain higher than 8, 7, 6 and 5 dB correspondently has been developed. FETs are designed for both continuous and pulse operation
In this paper the design of three-way travelling-wave divider/combiner is presented. The scheme proposed allows combining power microwave FETs. Combined circuits' topologies are shown with various substrates. Divider and combiner have been designed on 0.5 mm-thick alumina substrates. Input and output transmission lines have been used as matching capacitors and have been designed on 0.3 mm-thick substrates...
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