Application and performance analysis of VHF omnidirectional antenna and directional antenna combined
It is very difficult to amplify VHF stations in some special geographical locations.In order to overcome the problem of VHF signal coverage blind area,an appropriate antenna array mode is needed to significantly enhance the RF signal and gain.Based on the simulation analysis of omnidirectional antenna coverage characteristics,directional antenna array coverage character-istics of different spacing and antenna radiation characteristics of omnidirectional antenna and di-rectional antenna combination,the antenna array mode of omnidirectional antenna and direc-tional antenna combination has great enhancement effect on VHF signal through the built test platform.It can expand the coverage range of VHF in a specific direction,overcome the cover-age blind area,and ensure smooth communication.
VHFOmnidirectional antennaDirectional antennaCoverage area
NETL
NSTL
万方数据
