Microwave filter

Details Microwave filter Microwave filter

1987-07-17

1988-08-30

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333206, 333207, 333222, 333223, H01P 1202, H01P 1208, H01P 704

Patent

active

047680032

ABSTRACT:
A microwave filter comprising a rectangular ceramics block (30) having a plurality of elongated parallel holes (31-36) extending from the top surface to the bottom surface thereof. The holes are plated with conductive layers (37, 38), and flat conductive areas (39-44) coupled with the layers (37, 38) spatially disposed on the top surface of the dielectric block (30) surround opening ends of the holes (31-36). An input terminal and an output terminal are provided adjacent to the conductive areas (39, 44) at both the extreme sides of the dielectric block (30).

REFERENCES:
patent: 4342972 (1982-08-01), Nishikawa et al.
patent: 4386328 (1983-05-01), Masuda et al.
patent: 4426631 (1984-01-01), D'Avello et al.
patent: 4431977 (1984-02-01), Sokola et al.
patent: 4450421 (1984-05-01), Meguro et al.
patent: 4546333 (1985-10-01), Fukasawa et al.

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