| 摘要 |
PURPOSE:To prevent the re-designing of a mold when the characteristic of a filter is changed by inserting and holding a pin-shaped conductor into a hole for adjusting to adjust a magnetic coupling degree of two resonance elements. CONSTITUTION:A pin-shaped conductor 10 to adjust the coupling degree in a hole 9 for adjusting a coupling degree is inserted and held with a holding member 11, for example, composed of an epoxy resin. The conductor 10 has a character to strengthen the magnetic coupling degree of both two resonance elements 1a and 1b and consequently, when the inserting quantity and shape of the conductor 10 are controlled, the coupling degree can be arbitrarily adjusted.
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