Can someone explain to me how to obtain the cross-polarization in the "Chen, L., Lei, Zhenya, & Shi, X. (2015). Meander-Line Based Broadband Artificial Material for enhancing the gain of Printed End-Fire Antenna. Progress In Electromagnetics Research, Vol. 151, 55–63" paper, using the Comsol software? I am new to the program so please try to be specific.
Thank you.