Helical resonator filter

Details Helical resonator filter Helical resonator filter

1975-08-14

1977-12-06

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 73W, 333 82R, H01P 504, H01P 706, H03H 710

Patent

active

040619923

ABSTRACT:
A helical resonator filter is disclosed which comprises helical coils wound on hollow bobbins respectively, and magnetic cores adjustably inserted in the hollow bobbins respectively, the helical coils being electromagnetically coupled to each other via the magnetic cores. The hollow bobbins are accommodated in a metal casing which is provided with no inside partition wall formed with a window adapted for enabling the coils to be electromagnetically coupled to each other. Thus, the characteristic of the helical resonator filter can be controlled as desired, simply by adjusting the length of that portion of each magnetic core which is inserted in or overlapped by each helical coil.

REFERENCES:
patent: 2517741 (1950-08-01), Varone
patent: 3691487 (1972-09-01), Yoshimoto
patent: 3763447 (1973-10-01), Takahashi et al.
patent: 3820045 (1974-06-01), Igarashi
patent: 3836881 (1974-09-01), Koizumi
patent: 3895325 (1975-07-01), Fischer et al.
Rogers -- "The Theory of Networks in Electrical Communication and Other Fields", MacDonald, London, 1957; Title Page & pp. 77-79.

Affiliated with

Also associated with

Rating

Helical resonator 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 Helical resonator filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helical resonator filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1553235