Height and Angle Characteristics of Point Source Transmitting Power of Wireless Avionics Intra- Communication Systems Based on FDTD Analysis

摘要

The equivalent isotopically radiated power(EIRP) of a wireless avionics intra-communication (WAIC)system is limited to 6 dBm/MHz at the geometrical center of theaircraft, to avoid interference with aircraft radio altimeters,which are operated at the same frequency band between 4,200–4,400 MHz. In this paper, the height and angle characteristicsof the point source EIRP of a WAIC system are analyzed basedon the large scale FDTD analysis. Firstly, the strength of theelectric field (E-field) around the three-dimensional model ofAirbus A320-200 is analyzed. Then, the point source EIRP iscalculated based on the analyzed E-field strength. Finally, theheight and angle characteristics are analyzed to estimate theelectromagnetic field characteristics of the aircraft.