Multi-rotor unmanned aerial vehicle high-gain omnidirectional conformal diversity antenna technology

Abstract

The present invention relates to a multi-rotor unmanned aerial vehicle high-gain omnidirectional conformal diversity antenna technology, and relates to a high-gain unmanned aerial vehicle conformal antenna. By organizing an array on the basis of the radiation arrays of the common PCB dipole forms and carrying out the fine phase feed, the series feed antennas and the parallel feed antennas of the radiation arrays are conformal successfully, have the high gain, and are easy to be conformal with an undercarriage of an unmanned aerial vehicle, thereby realizing the horizontal and vertical polarization. By the diversity of the two kinds of antennas, the conditions of an end-emission type antenna array and an edge-emission type antenna array are satisfied. The multi-rotor unmanned aerial vehicle high-gain omnidirectional conformal diversity antenna technology is especially suitable for being applied to the MIMO and OFDM wireless communication systems, and the working frequency bands can be WIFI 2.4 GHz or 5.8 GHz and ISM 433 MHz, 1.2 GHz and 900 MHz, also can be the legal frequency bands used for an unmanned aircraft system of 840.5-845 MHz and 1430-1440 MHz.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle communication applications, in particular to a high-gain omnidirectional conformal antenna. Background technique [0002] UAV image transmission and remote control is a radio technology for information transmission. In the image transmission and remote control system, the farther the distance, the weaker the signal, which restricts the transmission distance of the radio communication system. The current general method to increase the image transmission and remote control distance is to add a power amplifier, low noise amplifier and increase the antenna gain. The antenna is used as a radio system. It provides a means for radiating and receiving radio waves, and its performance directly affects the effect of signal transmission and reception, which is of great significance to the development and application of UAV FPV. The early structure of the current consumer drone antenna is a c...

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Problems solved by technology

[0003] However, there are many deficiencies in the currently used methods. One is that the antenna gain is not high enough, generally 2dBi, or the gain is high, but the directionality is too strong, both of which affect the communication distance and receiving effect. Some antenna structures are not easy to share. The shape will affect the shape, structure and aerodynamic characteristics of the high-speed carrier, such as the clover antenna

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