摘要:This article designs a Log-periodic Dipole Antenna(LPDA) for airborne communication. This antenna replaces traditional dipoles with patch dipoles, the feeder adopt gradual changing structure, its working frequency is from 200MHz to 450MHz.Use HFSS which is the special software for high-frequency electromagnetic to calculate, optimize and simulate. The simulation rsults are in good agreement with the test results. The designed antenna improves its flexibility and reduces profile, it provide a good method for the design of the airborne antenna.