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US 2023/0420856 A1Published application
Circularly polarized antennas
AssigneeCorehw Semiconductor Oy
InventorAntti KARILAINEN
Life of this patent
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Abstract
A circularly polarized antenna includes a finite, conducting base plate defining a base plane, and an S-shaped top part defining a top plane parallel to the base plane, wherein the top plane has a non-zero distance from the base plane, and wherein both ends of the S-shaped top part have an end contact coupled either to the base plate or to an antenna feed. The antenna is configured to be fed single-ended or differentially to produce at least one pair of co-aligned electric and magnetic dipoles.
Claims14
-13. (canceled)
A circularly polarized antenna comprising:
- a finite, conducting base plate defining a base plane determining a horizontal plane, and a top element conductor, referred to as a top part, defining a top plane parallel to the base plane, wherein the top plane has a non-zero distance from the base plane, and wherein two ends of the top part have an end contact wherein:
- the top part comprises at least one S-shaped top part, and each end contact of the S-shaped top part is coupled to one of the base plate and an antenna feed, and
- wherein the S-shaped top part is configured to be fed single-ended by a single antenna feed positioned off the geometrical center of the S-shaped top part or differentially by two antenna feeds positioned symmetrically off the geometrical center of the S-shaped top part to cause a current mode in the S-shaped top part that to produce a pair of co-aligned electric and magnetic dipoles in a direction parallel to the horizontal plane.
Dependencies are inferred from the claim text.