Attributes of EM Polarizers

Summary

This chapter helps to test the fabricated polarizers through the photolithographic process and printing technique in laboratory environment. It considers the bending effect of the polarizer‐based tag conformal to various types of objects, on its cross‐polar performance. Two structures, strip lines and meander lines, were suggested as electromagnetic (EM) polarizers and their performance was confirmed through simulation. It is beneficial now to validate their performance as polarizer in real scenario. The very successful performance of the proposed meander line as an effective EM‐polarizer in harsh environments suggests a very robust system. The chapter aims at evaluating the performance of the printed polarizers when they are attached to highly reflective items. This covers the ultimate practical scenarios of the chipless radiofrequency identification (RFID) systems. For this purpose, two highly reflective objects are considered. First, a plastic bottle containing water is measured. Second, an aluminum can containing liquid is considered.