Radio frequency filter and apparatus and method for cooling a he

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

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Details

333 99R, 165 804, 361699, H01P 120, F28F 700

Patent

active

060609664

ABSTRACT:
The filter includes a housing (13) defining a cavity (14). The housing has a fluid inlet orifice (22) and a fluid ou let orifice (24) therein. At least one resonator (16), which is sized to receive and pass a radio frequency signal, is disposed in the cavity. A dielectric fluid (18) fills the cavity. The fluid inlet orifice is configured to supply a first quantity of the dielectric fluid to the cavity and the fluid outlet orifice is configured to remove a second quantity of the dielectric fluid from the cavity, so that the dielectric fluid is continuously replaced.

REFERENCES:
patent: 5111170 (1992-05-01), Ohya
patent: 5220804 (1993-06-01), Tilton et al.
patent: 5309319 (1994-05-01), Messina
patent: 5428326 (1995-06-01), Mizan et al.
patent: 5522452 (1996-06-01), Mizuno et al.
patent: 5675473 (1997-10-01), McDunn et al.
patent: 5805033 (1998-09-01), Liang et al.
Photos of: RF Cavity Delay Filters by Filtronic Comtek, Fluid Conditioning System Filter by 3M Corp., Spray Cooling Fluid Manifolds and Nozzle Arrays by Motorola and Isothermal Systems Research.

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