| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize a feeder and reduce its cost. <P>SOLUTION: The feeder mounted on a balanced transmission line for feeding a current to a terminal connected to the balanced transmission line comprises an electronic inductance circuit constituted, as follows. Between input and output terminals, two uncontrolled terminals of a transistor are connected in series to a first resistor, and a second resistor and a capacitor are connected in series. A connecting point of the second resistor and the capacitor is connected to a control terminal of the transistor and also to a current source for determining its DC operating point. The electronic inductance circuit has a switching means for cutting off the capacitor from this circuit when specified pulse signals are transmitted in the circuit. <P>COPYRIGHT: (C)2004,JPO |
