VEHICULAR MICROWAVE TRANSCEIVER

摘要

An antenna (45) includes a waveguide horn (84) and a horn aperture bend (100). The waveguide horn includes a first horn port (86) having a first area, a second horn port (88) having a second area larger than the first area; and a conductive structure 85 including a planar horn surface (90), the conductive structure connecting the first horn port and the second horn port so as to convey electromagnetic waves between the first and second horn ports in a horn direction. The horn aperture bend includes a first bend port (110) coplanar with the planar horn surface, a second bend port (108) congruent and in registration with the second horn port so as to convey the electromagnetic waves therebetween, and a bend surface (106), connecting the first bend port and the second bend port, which is configured to convey the electromagnetic waves through the first bend port in an antenna propagation direction different from the horn direction.