Single-layered end-fire circularly polarized substrate integrated waveguide horn antenna
AssigneeHuawei Technologies Canada Co., Ltd.
InventorsKe Wu, Yifan Yin
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Abstract
An end fire circularly polarized (CP) substrate integrated waveguide (SIW) horn antenna and a method of manufacturing thereof are described. The antenna includes an input section for receiving radio frequency (RF) waves from a source; and a body extending from the input section for receiving the RF waves from the input section, the body comprising a plurality of radiating units, the plurality of radiating units being configured to radiate circularly polarized waves (CP) in a far field, wherein apertures of the plurality of radiating unit being located along an edge of a planar dielectric substrate, and wherein the horn antenna is in a planar form.
Claims23
An end fire circularly polarized (CP) substrate integrated waveguide (SIW) horn antenna, comprising:
- an input section for receiving radio frequency (RF) waves from a source;
- and
- a body extending from the input section for receiving the RF waves from the input section, the body comprising a plurality of radiating units, the plurality of radiating units being configured to radiate circularly polarized waves (CP) in a far field,
- wherein apertures of the plurality of radiating unit being located along an edge of a planar dielectric substrate, and wherein the horn antenna is in a planar form.
A method of manufacturing an end fire circularly polarized (CP) horn antenna on a substrate having a face side and a bottom side, comprising:
- covering the face side of the substrate with a face side conductive layer;
- covering the bottom side of the substrate with a bottom side conductive layer;
- forming conductive side walls for electrically connecting the face side conductive layer and the bottom side conductive layer;
- forming a plurality channels by cutting or etching through the face conductive layer, the substrate, and the bottom conductive layer;
- and
- forming conductive dividing walls by metalizing two surfaces of each of the channels, wherein the top and bottom conductive layers, the conductive side walls, the conductive dividing walls, and the substrate form the horn antenna comprising a plurality of radiating units,
- wherein the plurality of radiating units radiate circularly polarized waves in a far field, and wherein the horn antenna is in a planar form.
Dependencies are inferred from the claim text.