RF HIGH POWER SIGNAL SOURCE USING TRANSFORMER OUTPUT WITH TRANSFORMER FEEDBACK RF NEGATIVE RESISTANCE CROSS-COUPLED OSCILLATOR

摘要

The high output signal generator of the present invention includes a pair of negative resistance transistors including a first transistor and a second transistor, a gate electrode of the first transistor and a gate electrode of the second transistor, A third transistor connected to the second transistor and cross-coupled to have a complementary characteristic with the fourth transistor, and a fourth transistor connected to the first transistor, the fourth transistor being cross-coupled to have a complementary characteristic with the third transistor, A first transistor having a first node connected to a source electrode of the first transistor and a source electrode of the second transistor, and a second node coupled to the first node and a first mutual inductance, A first transformer, cross-coupled to have complementary characteristics, and a gate electrode connected to the primary coil of the first transformer A pair of feedback transistors connected to both sides, a pair of buffer transistors whose gate electrodes are connected to both sides of the secondary coil of the first transformer, and a pair of buffer transistors whose both sides are connected to the drain electrodes of the pair of buffer transistors And a second transformer including a second coil end coupled to the first coil end and a second mutual inductance M2. According to the present invention, the output terminal of the signal generator using the transformer feedback RF complementary resistance cross-coupled oscillator structure is constituted by a transformer, so that the output power can be increased.