Patent ID: 11417964

Abstract:
The present invention discloses a new single polarized array waveguide antenna adapted to be configured above a signal processing substrate, and including an antenna array substrate and a waveguide body. The antenna array substrate includes a plurality of antenna units, each of which having a coupling portion and an impedance matching portion. The waveguide body is configured above the antenna array substrate, and includes a plurality of waveguide channels passing through the waveguide body. Each waveguide channel has a first ridge and a second ridge projecting from wall surfaces and arranged opposite to each other. The first ridge has a first lower withdrawn edge on a lower section of the waveguide channel, and the second ridge has a second lower withdrawn edge on the lower section of the waveguide channel. The first lower withdrawn edge is distanced from the antenna array substrate by a first matching height, and the second lower withdrawn edge is distanced from the antenna array substrate by a second matching height, wherein the first matching height is different from the second matching height. Accordingly, signal transmission quality is improved by the structural arrangement above.