Microstrip patch filters

Details Microstrip patch filters Microstrip patch filters

1995-03-17

1998-09-08

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333202, H01P 120

Patent

active

058050345

ABSTRACT:
A microstrip patch filter in which a dielectric has a ground plane printed on one of its faces and a conductive arrangement printed on the other of said faces, the conductive arrangement includes a flat patch, input and output leads electromagnetically coupled to the flat patch, the flat patch or the dielectric substrate has a reactance-enhancing metallic constriction located along a portion of the patch. When the constriction is in the patch it forms a current-concentrating inductive constriction. When the constriction is in the dielectric substrate, it enhances the capacitance. In an embodiment, the patch has two mutually-transverse constrictions that divide the patch into four sub-patches cross-connected by current-concentrating inductive constriction.

REFERENCES:
patent: 2411355 (1946-11-01), Rogers
patent: 4233579 (1980-11-01), Carlson et al.
patent: 4551696 (1985-11-01), Moutrie et al.
patent: 5136268 (1992-08-01), Fiedziuszko
patent: 5142255 (1992-08-01), Chang et al.
patent: 5160906 (1992-11-01), Siomkos et al.

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