Compact multibeam antenna
First Claim
1. Multibeam antenna for emitting/receiving a radiofrequency signal in a plurality of directions in at least one band of frequencies, the antenna comprising:
- a ground plane (P);
a dielectric substrate (11), having a permittivity ∈
1, the substrate (11) being arranged on the ground plane (P);
a plurality of assemblies of antenna elements arranged on the substrate (11), each assembly corresponding to a direction of the antenna;
wherein the antenna further comprises a dielectric superstrate (12), having a permittivity (∈
2) greater than the permittivity (∈
1) of the substrate (11), arranged on the assemblies of antenna elements, and in that the assemblies are interleaved one under the other so as to form a column of antenna elements in a periodic manner, the period being equal to the number of direction of the antenna.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a multibeam antenna for emitting/receiving a radiofrequency signal in a plurality of directions in at least one frequency band, the antenna including: a floorplan (P); a dielectric substrate (11) having a permittivity (∈1), the substrate (11) being arranged on the floorplan (P); and a plurality of assemblies (Ei) of antenna elements arranged on the substrate (11), each assembly (Ei) corresponding to a direction of the antenna. The antenna according to the invention is characterized in that said antenna also includes a dielectric superstate (12), having a higher permittivity (∈2) than the permittivity (∈1) of the substrate (11), arranged on the assemblies (Ei) of antenna elements, and in that the assemblies (Ei) are interleaved one under the other so as to form a column, the assemblies (Ei) corresponding to a single antenna direction being separated by a number of assemblies equal to the number of antenna directions.
12 Citations
10 Claims
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1. Multibeam antenna for emitting/receiving a radiofrequency signal in a plurality of directions in at least one band of frequencies, the antenna comprising:
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a ground plane (P); a dielectric substrate (11), having a permittivity ∈
1, the substrate (11) being arranged on the ground plane (P);a plurality of assemblies of antenna elements arranged on the substrate (11), each assembly corresponding to a direction of the antenna; wherein the antenna further comprises a dielectric superstrate (12), having a permittivity (∈
2) greater than the permittivity (∈
1) of the substrate (11), arranged on the assemblies of antenna elements, and in that the assemblies are interleaved one under the other so as to form a column of antenna elements in a periodic manner, the period being equal to the number of direction of the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification