Dual-band omnidirectional dipole antenna for vehicle-mounted terminal communication
In order to satisfy the needs of open-pit mine vehicle-mounted terminal communication,an omnidirectional dipole antenna which can meet 4G/5G communication at the same time is designed.This antenna is based on a mountain-shaped structure.Firstly,an omnidirectional printed dipole sin-gle frequency antenna is designed based on biconical antenna model.Then,high frequency resonant point is introduced by loading branches on both sides.And frequency bands are extended and resonant frequency points are shifted by cutting L-shaped slits and rectangular slits on the inverted triangular radiation patch.Finally,for the sake of smooth transition at the inflection point of the antenna,gradi-ent processing is done at the end of branches on both sides,so as to obtain good impedance matching in a wider frequency band.Simulation and measurement results show that this antenna has dual-band and omnidirectional radiation characteristics which meets the design requirements completely.It has simple and compact structure,and is easy to install and not easy to be damaged.
NETL
NSTL
万方数据
维普
