Adjustable coaxial filter device with axially adjustable...

Details Adjustable coaxial filter device with axially adjustable... Adjustable coaxial filter device with axially adjustable...

2006-02-03

2008-03-25

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S263000

Reexamination Certificate

active

07348869

ABSTRACT:
An adjustable filter includes an outer conductor, a first inner conductor, and a second inner conductor. The inner conductors are capacitively coupled on the same axis. The further may further include a third inner conductor capacitively coupled to both the first and second inner conductor. The third inner conductor is axially displaceable with respect to the first and second inner conductors. With this configuration, generation of intermodulation products can be minimized.

REFERENCES:
patent: 2577511 (1951-12-01), Cohn
patent: 3393384 (1968-07-01), Bailey et al.
patent: 3939443 (1976-02-01), Biro et al.
patent: 4303899 (1981-12-01), Barley et al.
patent: 4616195 (1986-10-01), Ward et al.
patent: 911 627 (1954-05-01), None
patent: 1 062 485 (1958-01-01), None
patent: 199 07 413 (2000-08-01), None

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