A signal line protection assembly of an aerial vehicle includes a foot stand and a protection sleeve. The foot stand includes a foot stand sleeve and a lower cover including an antenna compartment configured to receive an antenna of the aerial vehicle. The protection sleeve is configured to receive a signal line. At least a portion of the protection sleeve is received in the foot stand sleeve. The signal line includes a data line for the antenna.

A signal line protection assembly of an aerial vehicle includes a foot stand and a protection sleeve. The foot stand includes a foot stand sleeve and a lower cover including an antenna compartment configured to receive an antenna of the aerial vehicle. The protection sleeve is configured to receive a signal line. At least a portion of the protection sleeve is received in the foot stand sleeve. The signal line includes a data line for the antenna.

The present invention provides an unmanned aerial vehicle built-in antenna. The unmanned aerial vehicle built-in antenna includes a substrate and a microstrip antenna disposed on the substrate. The substrate is provided with a first surface and a second surface disposed opposite to each other. The microstrip antenna includes a microstrip feeder, an antenna element arm, a grounding wire and a first grounding terminal that are disposed on the first surface of the substrate, a second grounding terminal disposed on the second surface of the substrate and a feeding coaxial line. A feed terminal of the feeding coaxial line is connected to a first terminal of the microstrip feeder, and a grounding terminal of the feeding coaxial line is connected to the first grounding terminal. A first end of the grounding wire is connected to a first terminal of the antenna element arm, and a second end of the grounding wire is connected to the first grounding terminal. The first grounding terminal is connected to the second grounding terminal.

The present invention provides an unmanned aerial vehicle built-in antenna. The unmanned aerial vehicle built-in antenna includes a substrate and a microstrip antenna disposed on the substrate. The substrate is provided with a first surface and a second surface disposed opposite to each other. The microstrip antenna includes a microstrip feeder, an antenna element arm, a grounding wire and a first grounding terminal that are disposed on the first surface of the substrate, a second grounding terminal disposed on the second surface of the substrate and a feeding coaxial line. A feed terminal of the feeding coaxial line is connected to a first terminal of the microstrip feeder, and a grounding terminal of the feeding coaxial line is connected to the first grounding terminal. A first end of the grounding wire is connected to a first terminal of the antenna element arm, and a second end of the grounding wire is connected to the first grounding terminal. The first grounding terminal is connected to the second grounding terminal.

An unmanned aerial vehicle (UAV) navigation system includes a portable, ground-based landing pad comprising having a first antenna configured to transmit a data packet; a UAV comprising a second antenna configured to receive the data packet; and second processing circuitry configured to determine a signal strength between the first antenna and the second antenna; determine, based on the signal strength, an orientation of the vehicle relative to the landing pad; and determine, based on a time of flight of the data packet, a distance between the vehicle and the landing pad.

An unmanned aerial vehicle (UAV) navigation system includes a portable, ground-based landing pad comprising having a first antenna configured to transmit a data packet; a UAV comprising a second antenna configured to receive the data packet; and second processing circuitry configured to determine a signal strength between the first antenna and the second antenna; determine, based on the signal strength, an orientation of the vehicle relative to the landing pad; and determine, based on a time of flight of the data packet, a distance between the vehicle and the landing pad.

An unmanned aerial vehicle (UAV) includes a fuselage, a power system arranged at the fuselage, and an antenna assembly arranged at the fuselage. The antenna assembly includes an antenna operating in a first frequency band and a second frequency band different from each other, a first parasitic unit configured to change a radiation direction of the antenna in the first frequency band, and a second parasitic unit configured to change a radiation direction of the antenna in the second frequency band.

An unmanned aerial vehicle (UAV) includes a fuselage, a power system arranged at the fuselage, and an antenna assembly arranged at the fuselage. The antenna assembly includes an antenna operating in a first frequency band and a second frequency band different from each other, a first parasitic unit configured to change a radiation direction of the antenna in the first frequency band, and a second parasitic unit configured to change a radiation direction of the antenna in the second frequency band.

There is provided a control device, configured to control a plurality of flight objects having a solar panel, a battery for storing an electrical power generated by the solar panel, and an antenna for forming a communication area on a ground with the electrical power stored in the battery and providing a wireless communication service for a user terminal within the communication area, the control device comprising: a flight object selecting unit configured to select a to-be-replaced active flight object among a plurality of active flight objects, which are flight objects each flying while covering a target area with the communication area; and a replacement controlling unit configured to replace the to-be-replaced active flight object with a standby flight object, which is a flight object flying without forming the communication area.

There is provided a control device, configured to control a plurality of flight objects having a solar panel, a battery for storing an electrical power generated by the solar panel, and an antenna for forming a communication area on a ground with the electrical power stored in the battery and providing a wireless communication service for a user terminal within the communication area, the control device comprising: a flight object selecting unit configured to select a to-be-replaced active flight object among a plurality of active flight objects, which are flight objects each flying while covering a target area with the communication area; and a replacement controlling unit configured to replace the to-be-replaced active flight object with a standby flight object, which is a flight object flying without forming the communication area.