Broadband nonhomogeneous multi-segmented dielectric resonator antenna system
First Claim
Patent Images
1. A dielectric resonator antenna system comprising:
- a) a grounded substrate;
b) a dielectric resonator having a dielectric constant k disposed a predetermined distance from the grounded substrate;
c) feed means for transferring energy into and from said dielectric resonator; and
,d) a thin dielectric substrate having a thickness of less than approximately λ
/10 and, having a dielectric constant of approximately 2k or greater, the thin dielectric substrate being disposed between the feed means and the dielectric resonator for enhancing coupling therebetween.
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Abstract
A dielectric resonator antenna system is disclosed wherein a dielectric material having a high dielectric constant is placed between a dielectric resonator antenna (DRA) and the antenna feed. Preferably the dielectric material having a high dielectric constant is either in the form of an insert within a cavity of the DRA or alternatively is in the form of a thin layer between the feed and the DRA for enhancing coupling therebetween. It is preferred that the high dielectric constant material be at least twice the value of the dielectric resonator antenna.
321 Citations
21 Claims
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1. A dielectric resonator antenna system comprising:
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a) a grounded substrate; b) a dielectric resonator having a dielectric constant k disposed a predetermined distance from the grounded substrate; c) feed means for transferring energy into and from said dielectric resonator; and
,d) a thin dielectric substrate having a thickness of less than approximately λ
/10 and, having a dielectric constant of approximately 2k or greater, the thin dielectric substrate being disposed between the feed means and the dielectric resonator for enhancing coupling therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10)
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7. A dielectric resonator antenna system comprising a plurality of resonator antenna elements each comprising:
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a) a grounded substrate; b) a dielectric resonator having a dielectric constant k disposed a predetermined distance from the grounded substrate; c) feed means for transferring energy into and from said dielectric resonator; and
,d) a thin dielectric substrate having a thickness of less than λ
/10 and, having a dielectric constant of approximately 2 k or greater, the thin dielectric substrate being disposed between the feed means and the dielectric resonator for enhancing coupling therebetween. - View Dependent Claims (8, 18, 20, 21)
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11. A dielectric resonator antenna system comprising:
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a) a grounded substrate; b) a dielectric resonator having a dielectric constant k disposed a predetermined distance from the grounded substrate; c) feed means for transferring energy into and from said dielectric resonator; and
,d) a first dielectric material having a dielectric constant of approximately 2k or greater being substantially non-resonant at a resonance of the first dielectric resonator, said first dielectric material being disposed between the feed means and the dielectric resonator for enhancing coupling therebetween. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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19. A dielectric resonator antenna system comprising an array of antenna elements, each element comprising:
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a) a grounded substrate; b) a dielectric resonator having a dielectric constant k disposed a predetermined distance from the grounded substrate; c) feed means for transferring energy into and from said dielectric resonator; and
,d) a dielectric material having a dielectric constant of approximately 2k or greater being substantially non-resonant at a resonance of the first dielectric resonator, said first dielectric material being disposed between the feed means and the dielectric resonator for enhancing coupling therebetween.
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Specification