HFSS15: Small Array of Planar Flared Dipole Antennas

Description - A five element array of flared dipole antennas with a trough reflector. A post processing variable has been defined that controls the element to element source phases, allowing the resulting beam to be easily steered.

Model - The elements use a teflon substrate with 1.6 mm thickness. The excitations are lumped ports. A radiation boundary is defined on an air box that is not show here. The post processing variable is called phase_shift.

Setup - Adapt at 1.9 GHz.

Post Processing Small Array of Planar Flared Dipole Antennas

After solving, you can view solution data by right-clicking on Setup1 and selecting Profile to display the Solution dialog. You also view the Solution tabs for Convergence, Matrix Data, and Mesh Statistics.

To view the f = 90^o radiation pattern double click on Radiation pattern 1 under Results in the Project tree. As stated the relative element-to-element phase shift in degrees for this array is controlled by the phase_shift post processing variable. To verify this, go to HFSS>Fields>Edit Sources where you will see the offset phase, defined as multiples of the variable phase_shift.

The easiest way to adjust the phase_shift variable is to click on the design name, HFSSDesign2, in the Project tree. You will see the design variable displayed in the Properties window. You can change the value of phase_shift in this window. The plot shown here is for a setting of 30^o.