Low-pass filter

Details Low-pass filter Low-pass filter

2005-03-01

2005-03-01

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S202000, C333S207000

Reexamination Certificate

active

06861929

ABSTRACT:
A plurality of cylindrical inner conductor portions having different diameters are connected with each other to form an inner conductor. The inner conductor portions include high-impedance portions and low-impedance portions. The inner conductor is formed within an outer conductor with a nonuniform inner diameter. The inner conductor is formed so that the axial length of some of the inner conductor portions forming the high-impedance portions is smaller than the axial length of the other inner conductor portions forming the high-impedance portions, and the diameter of the inner conductor portions forming the high-impedance portions is greater than a predetermined minimum diameter.

REFERENCES:
patent: 2491681 (1949-12-01), Minter
patent: 2569667 (1951-10-01), Harvey et al.
patent: 2752577 (1956-06-01), Polk
patent: 2896178 (1959-07-01), Gordon
patent: 3879690 (1975-04-01), Golant et al.
patent: 4161704 (1979-07-01), Schafer
patent: 4506241 (1985-03-01), Makimoto et al.
patent: 4985690 (1991-01-01), Eguchi et al.
patent: 6222500 (2001-04-01), Koitsalu et al.
patent: 6255920 (2001-07-01), Ohwada et al.
patent: 1 264 636 (1968-03-01), None
patent: 56-61801 (1981-05-01), None
patent: 56-076602 (1981-06-01), None
patent: 8-018305 (1996-01-01), None
patent: 10-209704 (1998-08-01), None
European Search Report dated Aug. 29, 2003.

Affiliated with

Also associated with

Rating

Low-pass filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-pass filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-pass filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3389975