Filter

Details Filter Filter

2007-10-02

2007-10-02

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S219000

Reexamination Certificate

active

10959432

ABSTRACT:
A filter includes first and second line patterns each having a length substantially equal to ½ of the wavelength of a pass-band frequency, and a resonator that is interposed between the first and second line patterns and is coupled therewith so that the first and second line patterns have open stubs in which connection points between input/output terminals and the first and second line patterns appear to be short-circuited when viewed from ends of the first and second line patterns.

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Hong et al., “Canonical Microstrip Filter using Square Open-loop Resonators,” Electronic Letters, vol. 31, No. 23, Nov. 9, 1995, pp. 2020-2022.
Yoshihisa Amano et al., “Low Cost Planar Filter for 60 GHz Applications”, 30thEuropean Microwave Conference in Paris 2000, pp. 340-343.

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