| 摘要 |
PROBLEM TO BE SOLVED: To make adjustment work efficient and to improve reliability by removing island-like conductors provided around a strip conductor by one at a time in the case adjusting a resonance frequency. SOLUTION: The strip conductor 2 is provided on a board 1, located between left and right coupled lines 3, and a resonance frequency is set in accordance with the length dimensions L0 of the strip conductor 2. A plurality of island-like conductors 4, 5, 6, 7 and 8 are also provided on the strip conductor 2 at positions facing an open end 2A of the strip conductor 2, and the resonance frequency is adjusted by removing the island-like conductors 4 to 8 by one at a time in the case of manufacturing a resonator. Thus, a portion of the conductor does not have to be chipped off at the time of adjusting the resonance frequency, the conductivity of the conductor is prevented from dropping and rust is prevent from coming about due to chipped off parts, and the reliability can be improved.
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