How to get Rxx, Rxy, Ryx and Ryy from floquet port simulation? My structure is assymmetric. If the HFSS solved model is dragged to Circuit module, how to get overall Rxx, Rxy, Ryx and Ryy from there?
You may consult it...
https://spectrum.library.concordia.ca/984219/1/ Akbari %20Choubar _PhD _F2018.pdf
Hi Mahadev,
Link doesn't work. Can you please share any other link of this document?
Hi,
Those S-parameter are available in HFSS as shown in attached picture.
Assuming the incident field is polarized along x-axis:
Rxx= FloquetPort1:2,FloquetPort1:2
Rxy= FloquetPort1:1,FloquetPort1:2
Txx= FloquetPort2:2,FloquetPort1:2
Txy= FloquetPort2:1,FloquetPort1:2
Hope it helps
Hi can we write,
Rxy= FloquetPort1:1,FloquetPort1:2 as S11 for x polarized incident and y polarized recieved (cross pol)
Txy= FloquetPort2:1,FloquetPort1:2 as S21 for for x polarized incident and y polarized recieved (cross pol)
In general FP A:B, FP C:D means Sab for D incident and B recieved, is that right?
Mode 1 is Y (TE) polarized and Mode 2(TM) is X polarized, right?
Lamine N. A Bamogho
Swadesh Poddar Its difficult to explain the said problem but i will try to ensure it helps you out.
Rxy= FloquetPort1:1,FloquetPort1:2 means we are measuring reflection coefficient S_11 with y polarized incident wave and x polarized reflected wave. In short, it means we are checking cross polarization. If S_11 is near 0 dB, it means that your periodic surface is acting as cross polarization converter. Nonetheless, for v small values of S_11 such as -40 dB ,it means the periodic surface doesn't act as cross polarization converter (Note: Linear pol. converters are backed by ground plane so S_21 = 0 always).
Similarly, Rxx= FloquetPort1:1,FloquetPort1:1 means we are measuring S_11 and checking the co-polarization.
For Rxx= FloquetPort1:1,FloquetPort1:2 =, it is not a valid statement because Rxx means incident and reflected wave polarization is same but in (FloquetPort1:1,FloquetPort1:2), the digit two indicates cross pol. measurement.
Lets take another example, Rxy = FloquetPort2:1,FloquetPort1:2 means measuring the transmission coefficient with incident wave as y polarized and transmitted wave as x polarized.
Hope it answers your question.
@ Umer Farooq Thank you very much for your detailed answer. Hope it will help.
Probably your last statement will be Txy = "Rxy = FloquetPort2:1,FloquetPort1:2"
where it represents S21, incident Y from port 1 and recieved X polarization at port 2.
- Badges
- Science topic
- Similar topics
- Computer Communications (Networks)
- Simulators