Mounting structure of dielectric filter, dielectric filter...

Details Mounting structure of dielectric filter, dielectric filter... Mounting structure of dielectric filter, dielectric filter...

2005-06-21

2005-06-21

Chang, Daniel (Department: 2819)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S206000, C333S132000, C333S219100

Reexamination Certificate

active

06909339

ABSTRACT:
An excitation hole is provided inside a dielectric block and, on the outer surface of the dielectric block, an input-output terminal electrically connected to an inner conductor inside the excitation hole is formed at one end portion of the excitation hole. A grounding-electrode-free portion is provided on the surface opposite to an input-output electrode of a mounting substrate with which the input-output terminal makes contact. Thus, the electric field strengths in upward and downward directions toward an outer conductor of the dielectric block from the excitation hole are balanced to suppress spurious TE-mode signals, etc.

REFERENCES:
patent: 5572175 (1996-11-01), Tada et al.
patent: 5691674 (1997-11-01), Yorita et al.

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