FIELD: microwave devices. SUBSTANCE: device designed for transforming loads and matching signal sources with various internal resistances and also for use as stage-to-stage matching circuits of transistorized broad-band power amplifiers has transmission line section inserted between loads being transformed and shorted stub connected in parallel with low-resistance load. Capacitor connected in parallel with high- resistance load provides for resonance tuning at center frequency. Operating frequency band of device with respect to standing-wave ratio of 1.2 is about 30%; transmission line sections may be much smaller than quarter of wavelength. EFFECT: enhanced frequency band of device. 3 dwg
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Authors
Dates
2001-11-10—Published
1999-07-27—Filed