Element of parallel flat plate line type, a circuit board

Details Element of parallel flat plate line type, a circuit board Element of parallel flat plate line type, a circuit board

2007-07-10

2007-07-10

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Transmission line inductive or radiation interference...

C333S156000, C333S161000

Reexamination Certificate

active

11320594

ABSTRACT:
An element of parallel flat plate line type suitable for operation at a higher speed and with a higher frequency is provided. The element is characterized by including a first metallic member1including a flat plate section11and a projected section12in which a plurality of projections are formed to stand on one surface of the flat plate section11in a direction substantially vertical to the surface with gaps therebetween, a second metallic member2including a flat plate section21and a projected section22in which a plurality of projections are formed to stand on one surface of the flat plate section21in a direction substantially vertical to the surface with gaps therebetween, and a dielectric film31formed between the projections and the gaps of the element of parallel flat plate line type formed by inserting the projections of the first metallic member1in the gap of the second metallic member2and inserting the projections of the second metallic member2in the gap of the first metallic member1, wherein a transmission line is formed between the first metallic member1and the second metallic member2along the dielectric film31, the transmission line being formed to have transmittivity ranging from −140 dB to −20 dB for a high-frequency electromagnetic wave ranging from 100 kHz to 10 GHz supplied from one terminal.

REFERENCES:
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