Voltage-controlled resonator, method of fabricating the same, method of tuning the same, and mobile communication apparatus
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United States of America Patent
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Dec 26, 2000
Grant Date -
N/A
app pub date -
Jul 18, 1997
filing date -
Jul 18, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A voltage-controlled resonator is fabricated by laminating, one on top of the other, a first dielectric which has a resonant circuit and on the upper surface of which a variable-capacitance element is mounted, and a second dielectric which has a through-hole formed in a position thereof corresponding to the position of the variable-capacitance element and which has a dual function of shielding and resonant frequency tuning. With this structure, the height of the resonator can be further reduced compared with the prior art while retaining the shielding effect, and moreover, further precise resonant frequency tuning can be accomplished as compared with the prior art.
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