Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1988-06-15
1990-06-19
LaRoche, Eugene R.
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333 12, 333204, H03H 700
Patent
active
049357107
ABSTRACT:
A high frequency filter for an electric instrument including a casing of metallic conductive material, an internal electric circuit element arranged within the casing, and a connector mounted on a peripheral wall of the casing for connecting the internal electric circuit element to an external electric circuit. The high frequency filter comprises an insulation substance layer arranged between the connector and a connection terminal of the circuit element, the insulation substance layer being made of a dielectric material whose dielectric constant decreases or increases in accordance with increase or decrease of wireless frequency applied thereto, and a pair of conductive layers formed on opposite surfaces of the insulation substance layer, one of the conductive layers being connected at one end thereof to the connector and at the other end thereof to the connection terminal of the circuit element, and the other conductive layer being connected to a portion of the casing.
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A. R. von Hippel (Editor)-"Dielectric Materials and Applications", The M.I.T. Press, Cambridge, Mass., p. 305.
Katoh Taisei
Saburi Toshiki
Sakurai Takashi
Sugimoto Hiroshi
Yamazaki Tohru
Ham Seung
LaRoche Eugene R.
Nippondenso Co. Ltd.
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