Multifunctional Satellite Navigation and Communication Mast Antenna Based on Mobile Platform

The paper is mainly about one kind of communication antenna based on civilian vehicles, which can meet the requirement of satellite navigation, communication. The paper focuses on the analysis of the technology of a broadband UHF quadrifilar helix antenna. Also the paper explores the implementation method of broadband quadrifilar helix antennas by theoretical research and electromagnetic model analysis. We achieve the goal that VSWR is less than 3 from f1 to 2.5f1. Experimental results and simulation results match better and we get the expected radiation characteristic. The cascade connection of multi-band frequency and different function antennas has been achieved. The study of the paper has significance for implementation of the technology of civilian communication vehicles and rescue vehicles.