Gain-enhanced low-profile dielectric resonator antenna with a loading metal
AssigneeCity University of Hong Kong
InventorsKwok Wa Leung, Zhili Su, Kai Lu
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Abstract
A substrate-integrated dielectric resonator, which includes a first substrate layer having a first dielectric constant, and a plurality of metallic patches on a first side of the first substrate layer. The plurality of metallic patches is separated from each other, and is shorted to ground. A dielectric resonator antenna incorporating such a resonator is also described. The DRA has a low profile with an enhanced gain. The DRA can be easily fabricated using low-cost PCB technology. By adding shorted metallic patches to the DR without increasing the antenna size, the gain of DRA is obviously increased.
Claims16
A substrate-integrated dielectric resonator, comprising:
- a) a first substrate layer having a first dielectric constant;
- b) a plurality of metallic patches on a first side of the first substrate layer;
- the plurality of metallic patches shorted to ground;
- the plurality of metallic patches separated from each other;
- wherein on each of the plurality of metallic patches, there is formed a plurality of metallic vias that extend through the first substrate layer;
- the plurality of metallic vias on at least two of the metallic patches being aligned along a straight line that is parallel to the first side of the first substrate layer;
- and
- wherein each of the plurality of metallic patches has a substantially square or rectangular shape;
- the plurality of metallic vias on each of the plurality of metallic patches being aligned parallel to and closer to one of four sides of the substantially square or rectangular shape than others of the four sides.
Dependencies are inferred from the claim text.