On-board vertical-fin conformal omnidirectional antenna

Abstract

Provided is an on-board vertical-fin conformal omnidirectional antenna. The omnidirectional antenna includes an airplane vertical fin and omnidirectional antenna bodies, and the omnidirectional antenna bodies are arranged in a surface skin of the airplane vertical fin and correspondingly disposed at the two sides of each structural metal component in a cavity of the airplane vertical fin; the omnidirectional antenna bodies are electrically connected with a time-sharing switch module, and the time-sharing switch module is used for controlling the omnidirectional antenna bodies to work alternatively in a time-sharing mode. According to the on-board vertical-fin conformal omnidirectional antenna, by arranging the omnidirectional antenna bodies in the airplane vertical fin to form a conformalstructure and adopting the time-sharing switch module to control the omnidirectional antenna bodies to work alternatively in the time-sharing mode, optimization of aerodynamic performance of on-boardantennas and the omnidirectional working pattern of the antennas are achieved, and the omnidirectional antenna is simple in structure and stable in performance.

Description

technical field [0001] The invention relates to the field of electricity, in particular to communication technology, in particular to antenna technology, in particular to an airborne vertical tail conformal omnidirectional antenna. Background technique [0002] Airborne communication antennas used in aircraft are required to work omnidirectionally in the horizontal plane. In the prior art, the airborne communication antennas are basically exposed to the carrier. The advantage of this airborne method is that the antenna can easily achieve omnidirectional operation, but the antenna needs to protrude carrier, destroying the aerodynamic performance of the carrier aircraft. Omni-directional antennas can adopt low-profile conformal airborne methods after technical improvement, but there are strict requirements on the size, strength and environmental adaptability of the antennas, and it is impossible to make the carrier air without changing the original shape of the carrier. The d...

AI Technical Summary

Problems solved by technology

[0002] Airborne communication antennas used in aircraft are required to work omnidirectionally in the horizontal plane. In the prior art, the airborne communication antennas are basically exposed to the carrier. The advantage of this airborne method is that the antenna can easily achieve omnidirectional operation, but the antenna needs to protrude carrier, destroying the aerodynamic performance of the carrier aircraft

Omni-directional antennas can adopt low-profile conformal airborne methods after technical improvement, but there are strict requirements on the size, strength and environmental adaptability of the antennas, and it is impossible to make the carrier air without changing the original shape of the carrier. Optimum dynamic performance

At the same time, antennas that conform to the vertical tail of the aircraft are currently used, but there are structural metal parts that increase the strength built into the vertical tail. These structural metal parts have a great impact on the performance of the omnidirectional antenna, especially the radiation pattern. The carrier antenna cannot effectively work omnidirectionally in the horizontal plane, which greatly limits the application of this type of vertical tail conformal antenna

Images