Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Reexamination Certificate
2006-02-28
2006-02-28
Ham, Seungsook (Department: 2817)
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
C333S134000
Reexamination Certificate
active
07005949
ABSTRACT:
A dielectric filter has a dielectric block1having a first end face1a, a second end face disposed in opposite side to the first end face and lateral faces each being disposed between edges of the first and second end faces; a plurality of resonators each having a through hole6which lies between the first and second end faces of the dielectric block1and is coated with an inner conductor3, and an outer conductor5coated on the second end face and the lateral faces of the dielectric block1; and input/output electrode4which is insulated from the outer conductor5and capacitively coupled to one of the resonators at input or output stage on the first end face1a, and extends to a mounting surface which is one of the lateral faces of the dielectric block. The input/output electrode4includes a conductor pattern4bformed on the first end face1aand having an inductance component which self-resonates at a predetermined frequency.
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Ham Seungsook
Santucci Ronald R.
UBE Industries Ltd.
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