To miniaturize a microwave/millimeter wave band filter and to save the area of the microwave/millimeter wave band filter.
This microwave/millimeter wave band filter consists of: a resonator comprising an almost plane-shaped dielectric layer with the upper side and the lower side being a plane, having two small planes connected to the lower side and parallel and opposite to each other, a face connecting the ends being the opposite side of the two small planes and a projecting part from the lower side in a shape formed by a face connecting the sides of the two small planes, and a metal layer provided in contact with the entire surface including the projecting part of the under side of the dielectric layer; an input line provided on the upper side of the dielectric layer; an output line; and a middle connection line between resonators.
| JP6502684 | Filter element and communication module |
| JPS5737902 | DIELECTRIC FILTER |
SAKIYAMA KAZUYUKI
SAGAWA USHIO
SUGANO HIROSHI
OOTSUCHI TETSUO
Tomoyasu Sakaguchi
Hiroki Naito