Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1979-07-16
1981-07-14
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333 33, 333223, H01P 1201, H01P 700
Patent
active
042789575
ABSTRACT:
A filter assembly for UHF or microwave frequency range includes a bottom cover plate, a top cover plate and an unitary cast multicell frame with each cell having a resonating rod integrally cast with the frame. Selected ones of the rod have taps which have been cast as integral parts of the single integrally cast multicell. Each tap may include a web cast as an integral part of the unitary cast frame, the webs being dimensioned to adjust the impedance ratio of RF energy coupled to the corresponding cell. The exterior of the top cover plate may have recesses adapted to receive circuit boards therein so that the taps to the resonating rods extending through the frame can be directly connected to the terminal of the circuit boards to eliminate cables to the circuits from the taps.
REFERENCES:
patent: 3538466 (1970-11-01), Brand
patent: 4034319 (1977-07-01), Olsson
Champlin, Jr. John H.
Johnson Randall J.
Starai Terrence M.
Gillman James W.
Ki Lee Sang
Motorola Inc.
Nussbaum Marvin L.
Rooney Edward M.
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