Planar dual mode filters and a method of construction thereof

Details Planar dual mode filters and a method of construction thereof Planar dual mode filters and a method of construction thereof

1997-11-20

1999-11-23

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333 99S, 505210, H01P 1203

Patent

active

059907657

ABSTRACT:
A planar dual mode filter has one or more resonators with L-shaped sections that are oriented back to back to one another. The filter can be constructed by adjusting the size of a gap between the back to back sections and adjusting the offset distance between adjacent sections. Further, coupling between adjacent resonators can be controlled by adjusting a distance between the adjacent resonators. The filters can be co-planar, stripline, suspended microstripline or microstripline. The filters have a film on a substrate with a ground plane. The film can be gold, silver or copper or it can be a ceramic material that becomes superconductive at cryogenic temperatures.

REFERENCES:
patent: 5021757 (1991-06-01), Kobayashi et al.
patent: 5648747 (1997-07-01), Grothe et al.
patent: 5750473 (1998-05-01), Shen
patent: 5786303 (1998-07-01), Mansour

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