| 摘要 |
PURPOSE:To reduce the reduction in the self-resonance frequency by inserting an insulation material between a dielectric base and a spiral or jigzag coil conductor. CONSTITUTION:Coil conductors 19, 20 are fixed to the dielectric base 14 via insulation materials 17, 18 in a print coil. Thus, the stray capacitance caused between wires of the coil conductors 19, 20 and between the conductors 19 and 20 is less. Then the self-resonance frequency is not lowered and a practical frequency characteristic is obtained.
|
