Wave transmission lines and networks – Resonators – Coaxial or shielded
Patent
1990-07-05
1991-09-03
Laroche, Eugene R.
Wave transmission lines and networks
Resonators
Coaxial or shielded
333219, 333223, 331101, 331 97, H01P 704
Patent
active
050458256
ABSTRACT:
A broadband, varactor-tuned shorted coax resonator is provided with a single point coupling port that facilitates coupling of discrete circuitry to the distributed resonator. The coupling port is defined by adding a second shorted coax line across the end of the first. The outer conductors of the two lines are interconnected. The inner conductors of the two lines are serially coupled and define a coupling gap, either along their length or at their ends, across which discrete circuitry can be connected. In a preferred form of the invention, the discrete circuitry is positioned in a region within the periphery of one of the inner conductors in order to provide an electromagnetic shield for the circuitry.
REFERENCES:
patent: 3246266 (1966-04-01), Racy
patent: 3735286 (1973-05-01), Vane
patent: 4228539 (1980-10-01), Hamalainen
patent: 4536724 (1985-08-01), Hasegawa et al.
patent: 4621205 (1986-11-01), Miller
Ramo et al., Fields and Waves in Communication Electronics, Wiley & Sons, Inc., 1965, pp. 558-561.
Ham Seung
Hewlett--Packard Company
LaRoche Eugene R.
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