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A 2 to 8 GHz Leveling Loop Using a GaAs MMIC Active Splitter and Attenuator

By: Barta, G.S.; Strid, E.W.; Herrick, G.C.; Jones, K.E.;

1986 / IEEE

Description

This item was taken from the IEEE Periodical ' A 2 to 8 GHz Leveling Loop Using a GaAs MMIC Active Splitter and Attenuator ' A wide-band monolithic GaAs bridged-T variable attenuator has been used with a monolithic GaAs active power splitter to form a compact, 2 to 8 GHz leveling loop for RF sources having a minimum 12dB leveling range with buffered output. The attenuator internally optimizes input and output return loss over a 1 to 10 GHz bandwidth by the use of an on-chip GaAs op-amp. The active power splitter provides unity gain to each port over a 1 to 10 GHz bandwidth by the use of distributed amplification. The entire 4.5 cm by 42 cm subsystem was realized with surface mount packages on RT-Duroid��.