Double-frequency band-pass balance filter with double-layer structure
The utility model relates to a double-frequency band-pass balance filter with a double-layer structure, which comprises an upper dielectric plate and a lower dielectric plate, a middle metal layer isarranged between the upper dielectric plate and the lower dielectric plate, an upper metal layer is a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a double-frequency band-pass balance filter with a double-layer structure, which comprises an upper dielectric plate and a lower dielectric plate, a middle metal layer isarranged between the upper dielectric plate and the lower dielectric plate, an upper metal layer is arranged at the upper part of the upper dielectric plate, and a lower metal layer is arranged at thelower part of the lower dielectric plate; the upper dielectric plate and the lower dielectric plate are respectively provided with a plurality of through holes, the through holes penetrate through the upper metal layer, the middle metal layer and the lower metal layer, and metal columns are arranged in the through holes. The through holes of the upper metal layer and the lower metal layer are arranged in a shape like a Chinese character ri, and the through holes enclose the upper metal layer and the lower metal layer into two square resonant cavities; the middle metal layer is H-shaped, and gaps at two ends of the H-s |
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