Antenna arrangement with a low-ripple radiation pattern
AssigneeGapwaves AB
InventorsCarlo Bencivenni, Julius Petersson
Life of this patent
Estimating the term…
Abstract
An antenna arrangement suitable for a vehicle radar transceiver. The antenna arrangement includes a radiating layer having a surface, the surface delimited by a surface boundary. One or more apertures are arranged on the surface. The antenna arrangement further includes one or more surface current suppressing members arranged on the surface. The one or more surface current suppressing members are arranged to suppress a surface current from an aperture to the surface boundary. The one or more surface current suppressing members include one or more grooves.
Claims18
An antenna arrangement, the antenna arrangement comprising:
- a radiating layer having a surface, the surface delimited by a surface boundary;
- one or more apertures arranged on the surface;
- and
- one or more surface current suppressing members arranged on the surface, wherein the one or more surface current suppressing members are arranged to suppress a surface current from an aperture to the surface boundary, wherein the one or more surface current suppressing members comprise one or more grooves, wherein the antenna arrangement further comprises a distribution layer, wherein the one or more grooves are through holes in the radiation layer and are electromagnetically terminated in the distribution layer.
An antenna arrangement, the antenna arrangement comprising:
- a radiating layer having a surface, the surface delimited by a surface boundary;
- one or more antenna apertures arranged on the surface;
- and
- one or more surface current suppressing members arranged on the surface, wherein the one or more surface current suppressing members are arranged to suppress a surface current from an aperture to the surface boundary, wherein the one or more surface current suppressing members comprise one or more electromagnetic absorbers, wherein the radiating layer comprises a metallized coating on a supporting layer, and the one or more electromagnetic absorbers constitute part of the support layer, wherein every area except predetermined areas of the support layer is metallized and wherein the predetermined areas form the electromagnetic absorbers, wherein the radiating layer comprises slot cutouts extending through the metallized coating and the supporting layer, wherein the slot cutouts form the one or more antenna apertures, and wherein an inside of the slot cutouts is metallized.
Dependencies are inferred from the claim text.