Load Resistance Value Changes Affect on the Plane Log-periodic Dipole Printed Antenna Characteristics

The paper mainly use Ansoft HFSS electromagnetic field simulation software for the simulation of simple plane log-periodic dipole printed antennas, focused on whether the changes of the far-end loading resistor value impact on such antenna radiation characteristics, using wires patches ~ a feature theoretical calculations of a few approximate phase center equivalent methods. The certification of the accuracy of the approximate calculation has been completed for plane log-periodic dipole antennas added terminals load resistance. At the same time, the paper has discussed the various value of the resistance whether to affect on the horizontal and vertical phase center.