Variable tuning filter in high frequency circuit

Details Variable tuning filter in high frequency circuit Variable tuning filter in high frequency circuit

1985-01-31

1986-03-18

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333223, 333235, 333246, H01P 1203, H01P 708

Patent

active

045771707

ABSTRACT:
A high frequency tuning filter having a grounding conductive layer on one side of a dielectric substrate and figure eight (8)-shaped resonance electrodes of an electrically conductive film layer on the other side is improved into a variable tuning filter for a high frequency circuit which has a plurality of resonators surrounded by figure 8-shaped grooves respectively which are each formed in the electrically conductive layer in such a manner that a portion of an electrically conductive layer small in width remains in the figure 8-shaped groove and the electrically conductive layer remains between the adjacent resonators, and which also has a region formed by removing a part of the grounding conductive layer over the resonators.

REFERENCES:
patent: 3451015 (1969-06-01), Heath

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