Wave transmission lines and networks – Coupling networks – With impedance matching
Patent
1992-03-30
1994-08-02
Lee, Benny T.
Wave transmission lines and networks
Coupling networks
With impedance matching
333243, 333260, H01P 306
Patent
active
053349563
ABSTRACT:
A coaxial cable that includes a first inner conductor, a first dielectric material that encircles the first inner conductor and a first outer conductor that encircles both the first dielectric material and the first inner conductor is improved to comprise a second inner conductor, a second dielectric material, and a second outer conductor. The second inner conductor has a diameter that is larger than the diameter of the first inner conductor and is electrically coupled to the first inner conductor. The geometric shape of the second dielectric material and the second outer conductor, from an axial perspective, is in the range of an ellipse having an eccentricity in a range greater than zero and less than one to an elongated circle. In addition, the dielectric constant of the second dielectric material is less than the dielectric constant of the first dielectric material such that when the second inner conductor is deflected from the center, the characteristic impedance of the coaxial cable remains substantially the same.
REFERENCES:
patent: 2904619 (1959-09-01), Forney, Jr.
patent: 3671662 (1972-06-01), Miller et al.
Leding Lisa M.
Tischer John M.
Lee Benny T.
Markison Timothy W.
Motorola Inc.
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