From power supply potential wiring to ground potential wiring, a first inductor, a first resistance, a first output terminal, and a first transistor are series-connected in this order, and in parallel with these, a second inductor, a second resistor, a second output terminal, and a second transistor...http://www.google.com/patents/US7282993?utm_source=gb-gplus-sharePatent US7282993 - Frequency characteristics-variable amplifying circuit and semiconductor integrated circuit device
