Multi-band single feed dielectric resonator antenna (DRA) array
AssigneeHuawei Technologies Co., Ltd.
InventorsVahid Miraftab, Fayez Hyjazie, Halim Boutayeb
Life of this patent
Estimating the term…
Abstract
A multi-band single feed dielectric resonator antenna (DRA) and DRA array are provided. The DRA is made of a dielectric material having a first and second antenna regions wherein the second antenna region has a different dielectric constant than the first antenna region. The dielectric material is supported by a feeding substrate. The feeding substrate has a top surface ground plane having a slot positioned below the first antenna region of the dielectric material and a microstrip feeding line on the bottom surface in alignment with the slot on the top surface ground plane.
Claims21
A multi-band single feed dielectric resonator antenna (DRA) comprising:
- a single layer of monolithic dielectric material forming:
- a radiating first antenna region of the dielectric material, wherein the first antenna region has a first dielectric constant;
- and
- a non-radiating second antenna region of the dielectric material, wherein the dielectric material of the second antenna region is provided with a plurality of spaced apart physical modifications that cause the second antenna region to have a second dielectric constant that is different from the first dielectric constant, the second antenna region surrounding a perimeter of the first antenna region;
- a feeding substrate supporting the dielectric material, the feeding substrate comprising:
- a top surface ground plane having a slot positioned below the first antenna region of the dielectric material;
- and
- a microstrip feeding line on a bottom surface, the microstrip feeding line having a first portion positioned below the first antenna region in alignment with the slot on the top surface ground plane, and a second portion that extends from the first portion along the bottom surface to a location below the second antenna region in alignment with a space between at least a pair of the plurality of physical modifications of the dielectric material of the second antenna region.
A dielectric resonator antenna (DRA) array comprising:
- a single layer of monolithic dielectric material forming:
- a plurality of radiating first antenna regions each having a first dielectric constant;
- and
- a plurality of non-radiating second antenna regions of the dielectric material, wherein the dielectric material of each second antenna region is provided with a respective plurality of spaced apart physical modifications that cause the second antenna region to have a second dielectric constant that is different from the first dielectric constant, each second antenna region surrounding a perimeter of a respective first antenna region;
- a feeding substrate supporting the dielectric material, the feeding substrate comprising:
- a top surface ground plane having a plurality of slots, each slot positioned below the respective first antenna region of the dielectric material;
- and
- a plurality of microstrip feeding lines on a bottom surface, each mircostrip feeding line having a first portion positioned below the respective first antenna region in alignment with the respective slot on the top surface ground plane, and a second portion that extends from the first portion along the bottom surface to a location below the respective second antenna region in alignment with a respective space between at least a pair of the respective plurality of physical modifications of the dielectric material of the second antenna region.
Dependencies are inferred from the claim text.