摘要 |
The object of the present invention is providing cheap, minimized and thin circuit device having desired frequency characteristic. The conductive pattern, which determines the behavior of the circuit device, is formed in inside layer of the dielectric substrate 11 and the earthed conductor is formed in outside layer of the substrate 11 . The conductive parts are formed on the area without the earthed conductor as the lattice-shaped pattern. If the area 15 and position of the area 15 become to variable, you have only to change the area and number of the earthed conductor 12 to change the distribution of the electromagnetic field, the circuit device can get the desired frequency characteristic.
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