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RSSAntenna Designs On Full Scale Aircraft And Vehicles Using Advanced Computational Electromagnetics – An Introduction
May 1, 2008
By David Estlick, DWE Aero LLC
Introduction
Aircraft have come a long way from their inception in terms of basic operational performance. During this evolution, the increase in number and complexity of on board electronics has mushroomed. Typical avionics functions and associated frequency range include: 1) Automatic Direction Finder – 190KHz to 1.7795 MHz, 2) High Frequency communications (COM) – 2MHz to 30MHz, 3) Marker Beacon - 75MHz, 4) VOR/LOC - 108MHz to 117MHz, 5) VHF COM – 134MHz to 176MHz, 6) UHF COM – 225MHz to 400MHz, 7) 7) GPS - 1575.42MHz, 8) x-band weather radar, and other functions.
This proliferation of operating frequencies presents a variety of challenges with regard to locating antennas to meet their operating requirements. In addition, mutual interference presents a variety of issues which must be addressed. Further degrees of complexity result for special mission and military aircraft which generally require additional equipment with associated antennas.
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