Planar feed source dielectric lens antenna used for unmanned aerial vehicle platform

Abstract

The invention discloses a planar feed source dielectric lens antenna used for an unmanned aerial vehicle (UAV) platform, comprising a cylindrical dielectric lens, a lens mount fixedly clamping the cylindrical dielectric lens, and a feed source mount installed at the free end of the lens mount and used for fixing a dielectric substrate; an array antenna feed source is printed on the dielectric substrate, and is located directly under the cylindrical dielectric lens; a gap exists between the top end of the array antenna feed source and the lower surface of the cylindrical dielectric lens; the array antenna feed source comprises at least one progressive groove antenna unit, a substrate integrated waveguide power dividing feed network in connection with the progressive groove antenna unit, and a microstrip line in connection with the substrate integrated waveguide power dividing feed network; the arrangement direction of the at least one progressive groove antenna unit is consistent with the axial direction of the cylindrical dielectric lens.

Description

technical field [0001] The invention relates to a communication device in an unmanned aerial vehicle, in particular to a planar feed medium lens antenna for an unmanned aerial vehicle platform. Background technique [0002] At present, microwave systems have been developed towards higher frequencies, especially in the field of millimeter waves, the design of the antenna is very important. On high-altitude aircraft platforms, antennas are required to be small in size, light in weight, and conform to the platform. Especially in the UAV anti-collision radar system, the radar antenna is required to be installed on the wing, and the radiation is radiated in the forward direction, that is, the flight direction. The low-profile characteristics of the wing, the end-fire antenna meets such requirements, and the planar asymptotic slot antenna fed by the substrate integrated waveguide is used as an end-fire antenna, which has the characteristics of low profile and high gain, and is ea...

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Problems solved by technology

Especially in the UAV anti-collision radar system, the radar antenna is required to be installed on the wing, and the radiation is radiated in the forward direction, that is, the flight direction. The low-profile characteristics of the wing, the end-fire antenna meets such requirements, and the planar asymptotic slot antenna fed by the substrate integrated waveguide is used as an end-fire antenna, which has the characteristics of low profile and high gain, and is easy to integrate with the front end. A planar asymptotic slot antenna is easy to implement a one-dimensional array, but it is difficult to implement a two-dimensional array

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