Wideband circularly polarized hybrid dielectric resonator antenna
AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of National Defence
InventorsGabriel Massie, Mathieu Caillet, Michel Clenet, Yahia M. M. Antar
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Abstract
The present invention provides a dielectric resonator antenna comprising: a dielectric resonator; a ground plane, operatively coupled with the dielectric resonator, the ground plane having four slots; and a substrate, operatively coupled to the ground plane, having a feeding network consisting of four microstrip lines; wherein the four slots are constructed and geometrically arranged to ensure proper circular polarization and coupling to the dielectric resonator; and wherein the antenna feeding network combines the four microstrip lines with a 90 degree phase difference to generate circular polarization over a wide frequency band.
Claims15
A dielectric resonator antenna comprising:
- a dielectric resonator;
- a ground plane, operatively coupled with the dielectric resonator, the ground plane having four independent slots with each slot being arc in shape and forming a ring configuration;
- and
- a substrate, operatively coupled to the ground plane, having a feeding network consisting of four microstrip lines, with each microstrip line feeding independently into each slot;
- wherein the four slots are constructed and geometrically arranged to ensure circular polarization and coupling to the dielectric resonator;
- wherein the antenna feeding network combines the four microstrip lines with a 90 degree phase difference to generate circular polarization over a wide frequency band;
- and
- wherein the feeding network includes a compact wideband rat-race combined with two surface mount (SMT) branch-line hybrid couplers.
Dependencies are inferred from the claim text.