Wave transmission lines and networks – Coupling networks – With impedance matching
Reexamination Certificate
2003-03-07
2008-03-25
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Coupling networks
With impedance matching
C333S238000
Reexamination Certificate
active
07348865
ABSTRACT:
An impedance-matching coupler (1) comprises a dielectric substrate (10) onto which a conducting strip (12) is disposed. A dielectric layer (14), preferably a dielectric film, is formed on top of the conducting strip and the first dielectric layer to encircle the conducting strip. A metallic layer (16, 18) is finally provided on top of the dielectric layer. The dielectric layer has a dielectric constant that is substantially higher that the dielectric constant for the dielectric substrate, preferably more than ten times higher. A dielectric film with a thickness of less than 100 μm is advantageous, preferably between 5 and 100 μm, and even more preferably between 10 and 70 μm. The thickness of the dielectric substrate is preferably larger than for the dielectric film, preferably more than ten time larger. The conducting strip has preferably a constant width. The dielectric film thickness is preferably larger than 10% of the conducting strip width.
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Carvalho Maria
Conrado Luiz
Demenicis Luciene
Margulis Walter
Seixas Daniele
Ericsson Telecommunicacoes S.A.
Jones Stephen E.
Nixon & Vanderhye P.C.
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