For planar circular polarized monopole, can any one brief how to plot LHCP & RHCP patterns using HFSS
- Once the simulation is complete (ensure you have inserted a far field setup), go under the "HFSS" menu to "Results"->"Create Far Fields Report"->"Radiation Pattern".
- In the window that comes up, select the "Primary Sweep" to be Theta or Phi from the drop-down menu.
- In the center of the window, select your desired far-field quantity, such as "Directivity".
- On the right hand side of the popup window, select "DirLHCP" and "DirRHCP".
- You probably want to select "dB" as the units as well.
- Under the "Families" tab at the top, select your other desired variable constraints.
- Press the "New Report" button at the bottom.
Good Luck!
Dear Anirban Da, The procedure is explained in detail by Stuart Barth. In our HFSS v13, we get Gain LHCP and gain RHCP. Rest are same. Now, if your antenna is able to produce CP then, you will find 15-20dB (or more) difference between LHCP and RHCP and vice versa.
Hello,
It's simple once you have got CP for an antenna. In the radiation pattern setup, you just choose ludwik 3d LHCP and RHCP. Then you can able to see in the rectangular plot, the radiation pattern for LHCP as well as RHCP. Also if you want to see axial ratio, that option is also there. so using these steps, it becomes easier to find LHCP and RHCP.
Thanks,
In ANSYS HFSS follow the following steps for LHCP or RHCP plots:
1. Right click on 'Results' -----> Create Far fields report ---> Radiation Pattern
2. Select Gain ----> GainLHCP or GainRHCP ---> Select dB as the unit
3. Click on New Report.
At theta=0 deg., if GainLHCP has higher magnitude than GainRHCP, then your antenna is LHCP polarized and vice-versa if GainRHCP has higher magnitude than GainLHCP (as shown in Fig. 11 of R. Xu, J. Li, Y. Qi, Y. Guangwei and J. Yang, "A Design of Triple-Wideband Triple-Sense Circularly Polarized Square Slot Antenna," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 1763-1766, 2017.)
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