1. The incline rectangular aperture antenna is one whose opening is tapered only on both narrow sides of a rectangular waveguide, placed on a perfectly infinite conducting plane, excited by the dominant H 10 mode in the rectangular waveguide.
矩形斜口面天线是把矩形波导管两个窄边同时渐削，宽边尺寸保持不变而形成的开口，口面位于无限大完全导电平面上，被矩形波导中主模H10模激励。