一种低轮廓的动中通卫星天线

• Format: Patent
• Language: Chinese
• Published: 23.08.2024
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

本发明涉及一种低轮廓的动中通卫星天线，包括结构相同的接收部分和发射部分，接收部分包括由上至下依次设置的上层调相面、中层调相面、下层馈源面，以及旋转机构，旋转机构包括上层大齿环、中层大齿环、下层大齿环和旋转驱动装置，旋转驱动装置以驱动下层大齿环、中层大齿环以及上层大齿环转动，以实现下层馈源面、中层调相面以及上层调相面旋转。本发明通过上层大齿环、中层大齿环带动上层调相面、中层调相面旋转的角度差调整卫星天线波束俯仰角，上层、下层调相面同时旋转，旋转的角度，调整天线波束方位角，通过下层大齿环带动下层馈源面旋转调整卫星天线的极化角度，实现极化的调整，使天线的主波束在车辆、飞机、船舶上运动过程中始终指向卫星，并保持在一定精度内。 The invention relates to a communication-in-moving satellite antenna with a low profile. The communication-in-moving satellite antenna comprises a receiving part and an emission part which are same instructure, wherein the receiving part comprises an upper-layer phase modulation surface, an intermediate-layer phase modulation surface, a lower-layer feeding source surface and a rotation mechanismwhich are sequentially arranged from top to bottom, the rotation mechanism comprises an upper-layer large ring gear, an intermediate-layer large ring gear, a lower-layer large ring gear and a rotationdriving device, and the rotation driving device drives the lower-layer large ring gear, the intermediate-layer la