Back to results
US 4,023,123 AGranted
Microstrip reverse-phased hybrid ring coupler
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorJohn Reindel
Life of this patent
Estimating the term…
Abstract
A microstrip hybrid directional coupler in which the 180.degree. phase sh is effectuated by a twisted pair of parallel conductors.
Claims14
A microwave directional coupler comprising:
- a dielectric material having first and second sides;
- a plurality of interconnected electrical conductors each of a predetermined electrical length fixed to said first side of said dielectric material;
- a ground plane conductor fixed to said second side of said dielectric material;
- a phase reversal transmission line connected to two of said plurality of electrical conductors comprising first and second adjacent, substantially parallel conductors each having first and second sides and each being twisted 180.degree. whereby said phase reversal transmission line introduces a 180.degree. phase reversal to microwave signals propagating therethrough.
1 more element
Dependencies are inferred from the claim text.