Dipole antenna Simulation by HFSS

Work frequency 1GHz, new project, add new design, edit add the following variables

An antenna model is established, which is two metal cylinders. After editing a oscillator, the other half can use the image command to create the parameters as follows, the material is PEC

A rectangular sheet is formed between two cylinders, connecting two cylinders to feed the power.

The excitation method for setting the rectangular face is the lumped port excitation. From the previous theoretical analysis, the input impedance of the half-wave dipole antenna is 73.2, and the load impedance is set to 73.2 for good impedance matching. The port integration line is then set. Here the integral line is the midpoint of the bottom edge of the rectangle to the top edge of the rectangle.

To calculate and analyze the radiation field of antenna, the radiation boundary condition must be set first. The distance between the radiation boundary and the antenna in this design is 1/4 working wavelengths. Here, we first create a cylinder that is placed along the z-axis, and the parameter settings

Set the model to

The analysis and sweep frequency settings are as follows

The simulation results are as follows

Dipole antenna Simulation by HFSS