I am trying to design a circularly symmetric high impedance surface. However, when I run the simulation in HFSS to calculate the reflection phase, I see this warning message: "Port 1 supports an additional propagating and/or slowly decaying mode whose attenuation is 0.000e+00 and propagation constant is 1.799e+03". The simulation also takes a lot of time to solve. Can anyone tell me how to solve this problem?
Two papers on circularly symmetric HIS:
1. J. Sarrazin, A. Lepage and X. Begaud, "Circular High-Impedance Surfaces Characterization," in IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 260-263, 2012, doi: 10.1109/LAWP.2012.2189349.
2. M. A. Amiri, C. A. Balanis and C. R. Birtcher, "Analysis, Design, and Measurements of Circularly Symmetric High-Impedance Surfaces for Loop Antenna Applications," in IEEE Transactions on Antennas and Propagation, vol. 64, no. 2, pp. 618-629, Feb. 2016, doi: 10.1109/TAP.2015.2506203.
- Badges
- Science topic
- Similar topics
- Philosophy
- Philosophy Of Science
- Reasoning