Radio frequency filter comprising helix resonators

Details Radio frequency filter comprising helix resonators Radio frequency filter comprising helix resonators

1995-10-06

1997-11-18

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333219, H01P 120

Patent

active

056892217

ABSTRACT:
The invention relates to a radio frequency filter comprising at least two helix resonators (HX1-HX2) placed at a distance from each other, each of which is wound of a metal wire into a cylindrical coil. A conductor (MLIN2), preferably a microstrip line, runs between two neighboring resonators and is provided at a distance (d1, d2) from each of the resonator coils so that one part (3) of it is electromagnetically connected to one resonator (HX 1) and the other part (4) is electromagnetically connected to another resonator (HX2).

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European Search Report -EP 95 30 7092 -IEEE Transactions on Parts, Materials & Packaging, vol. PMP-5, No. 3, Sep. 1969 -Field Analysis of Helical Resonators with Constant-Bandwidth Filter Application pp. 127-132 -Daniel J. Miley, Student Member, IEEE and James B. Beyer, Member IEEE.

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