19-04-2018 дата публикации
Номер: US20180108969A1
Принадлежит:
A substrate integrated waveguide, SIW, antenna comprises a modified design of prior art SIW antennas that comprises an addition of electrically conducting means, e.g. vias, also along the substrate extending from the antenna aperture. By doing so, the SIW antenna of the present disclosure enables a reduction of mutual coupling between neighboring SIW antennas when arranged adjacent each other, e.g. in an array. Moreover, a reduction of back radiation in the SIW antenna can also be observed. 1. A substrate integrated waveguide , SIW , antenna comprising:a substrate,a first metal plate arranged on a first side of the substrate,a second metal plate arranged on a second side of the substrate,first electrically conducting means arranged through the substrate to connect the first metal plate and the second metal plate, the first electrically conducting means being arranged in a direction of extension, starting at a feed end and ending at an aperture, andsecond electrically conducting means arranged through the substrate, the second electrically conducting means being arranged in the direction of extension and starting at the aperture.2. The SIW antenna of claim 1 , where:the first electrically conducting means are configured as two walls that are flared in a direction perpendicular to the direction of extension, thereby forming a SIW horn antenna.3. The SIW antenna of claim 2 , where:the first electrically conducting means comprise any of via holes, via posts and solid walls.4. The SIW antenna of claim 1 , where:the second electrically conducting means are configured as two parallel walls.5. The SIW antenna of claim 4 , where:the second electrically conducting means comprise any of via holes, via posts and solid walls.6. The SIW antenna of claim 1 , comprising:at least a third metal plate and a fourth metal plate arranged on the first side of the substrate and the second side of the substrate, respectively, beyond the aperture in the direction of extension.7. The SIW ...
Подробнее