US 10,374,280 B2Granted

Quadrature coupler

AssigneeRaytheon Company

InventorsChristopher M. Laighton, Susan C. Trulli, Elicia K. Harper

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Abstract

A quadrature coupler having: a pair of overlying strip conductors separated by a first dielectric layer to provide a coupling region between the coupling region of overlying strip conductors; a pair of opposing ground pads, the coupling region being disposed between the pair of opposing ground pads; a second dielectric layer disposed over the coupling region and between the pair of opposing ground pads; and an electrically conductive shield layer disposed over the second dielectric layer, extending over opposing sides of the dielectric layer and onto the pair of opposing ground pads. Portions of coupler are formed by printing or additive manufacturing.

Claims18

Dependent claims

A radio frequency coupler, comprising:

a dielectric substrate;
a pair of strip conductors disposed over an upper surface of the dielectric substrate, a first portion of the pair of strip conductors being in an overlying relationship and separated by a first dielectric layer to provide a coupling region between the portion of the pair of strip conductors in the overlying relationship;
a second portion of the pair of strip conductors being disposed on the upper surface of substrate;
a pair of opposing ground pads disposed on, and separated by, different portions of the upper surface of the substrate, the coupling region being disposed between the pair of opposing ground pads;
a second dielectric layer disposed over the coupling region and between the pair of opposing ground pads;
an electrically conductive shield layer disposed over the second dielectric layer, extending over opposing sides of the second dielectric layer and onto the pair of opposing ground pads.

3 more elements

A radio frequency coupler, comprising:

a dielectric substrate;
a first metal layer disposed on an upper surface of the substrate, the first metal layer being patterned to provide:
a pair of ground pads disposed on, and separated by, different portions of the dielectric substrate;
a first lower strip conductor, spaced from the pair of ground pads, having:
an input at first end, an output at a second end;
and, a coupling region disposed between the first end, the second end, and between the pair of ground pads;
a second lower strip conductor having:
an input end and an output end;
and,
a third lower strip conductor having an input end and an output end;
a first dielectric layer disposed over the coupling region;
a second metal layer configured as a strip conductor disposed on the first dielectric layer over the coupling region, the second metal layer having one end disposed on, and electrically connected to, the output end of the second lower strip conductor and having a second end disposed on, and electrically connected to the input end of the third lower strip conductor;
and
a second dielectric layer is disposed over the second metal layer and between the pair of ground pads;
and
an electrically conductive shield layer disposed on an upper surface of the second dielectric layer extending over sides of the second dielectric layer and onto the pair of ground pads.

13 more elements

Dependencies are inferred from the claim text.