Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1997-06-02
1999-03-09
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333219, H01P 1203
Patent
active
058806520
ABSTRACT:
A stripline filter is disclosed having two stripline resonators which are mutually coupled. In order to be able to influence the type of coupling, such as inductive, capacitive or a combination thereof, the distance between the stripline resonators changes along their length. If the stripline resonators are shorted at the end where the distance between them has a minimum value, then the coupling is substantially inductive. If the stripline resonators are open or capacitively loaded at the end where the distance between the resonators has a minimum value, then the coupling is substantially capacitive.
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"Microwave Filters, Impedance Matching Networks and Coupling Structures" By G. L. Matthaei et al, Mc Graw-Hill Book Company 1964, pp. 217-229.
Halajian Dicran
Ham Seungsook
U.S. Philips Corporation
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