Wave transmission lines and networks – Resonators – With tuning
Reexamination Certificate
2005-06-28
2005-06-28
Ham, Seungsook (Department: 2817)
Wave transmission lines and networks
Resonators
With tuning
C333S202000, C333S219000, C331S096000
Reexamination Certificate
active
06911882
ABSTRACT:
A high-frequency module includes a dielectric plate in which a resonator is formed and a cover for covering the dielectric plate. A hole is provided in the cover. A laser beam for laser trimming passes through the hole. The area of opening and the depth of the hole are defined so that electromagnetic waves in a usable frequency band are cut off in the hole. An electrical characteristic is measured in a state where all components including the cover are assembled, and laser trimming is performed through the hole so as to obtain a desired characteristic.
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Abstract of JP 05315820.
Haruta Kazumasa
Kajikawa Takehisa
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