| 摘要 |
PROBLEM TO BE SOLVED: To reduce a loss in signal frequency and to enlarge a return loss in an input/output terminal by securing a required transmission band with respect to a signal to be inputted/outputted. SOLUTION: The nonreversible circuit element has a plate-like magnetic core 1 placed within a DC magnetic field and having an upper surface at a right angle to the direction of the DC magnetic field and three central conductors 2, 3 and 4 placed to be overlapped at equal angle intervals on the approximately central part of the upper surface of the magnetic core 1, each having one terminal to be input/output terminals 2c, 3c and 4c and each having the other terminal to be ground terminals 2d, 3d and 4d, inductance per unit length of the central conductors 2, 3 and 4 from the central parts to the ground terminals 2d, 3d and 4d is reduced rather than inductance per unit length of the central conductors 2, 3 and 4 from the central parts to the input/output terminals 2c, 3c and 4c. COPYRIGHT: (C)2003,JPO
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