Stacked dielectric filter
First Claim
1. A stacked dielectric filter comprising a filter section having a plurality of resonators for filtering an unbalanced signal, and at least one unbalanced-balanced converting section having strip lines, said filter section and said unbalanced-balanced converting section being in a dielectric substrate including a plurality of stacked dielectric layers, wherein said unbalanced-balanced converting section is connected via a connecting section to an input side and/or an output side of said filter section.
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Accused Products
Abstract
A stacked dielectric filter includes a filter section which has first and second input side resonant electrodes and first and second output side resonant electrodes of two ¼ wavelength resonators, a converting section which has a plurality of strip lines, and a connecting section which connects the filter section and the converting section, wherein the filter section, the converting section, and the connecting section are formed in a dielectric substrate. The filter section is formed at an upper portion in the stacking direction of dielectric layers. The converting section is formed at a lower portion in the stacking direction. The connecting section is formed between the filter section and the converting section.
195 Citations
39 Claims
- 1. A stacked dielectric filter comprising a filter section having a plurality of resonators for filtering an unbalanced signal, and at least one unbalanced-balanced converting section having strip lines, said filter section and said unbalanced-balanced converting section being in a dielectric substrate including a plurality of stacked dielectric layers, wherein said unbalanced-balanced converting section is connected via a connecting section to an input side and/or an output side of said filter section.
Specification