BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
BLOCKING READER: DESIGN AND IMPLEMENTATION OF A ...
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2.7 Polarization<br />
The electromagnetic field consists of electric and magnetic field vectors which<br />
are orthogonal to each other as show in the Figure 2.9. The property of waves which<br />
orients itself during oscillations is called polarization. There are different types of<br />
polarizations they are<br />
• Linear<br />
• Circular<br />
• Elliptical<br />
Figure 2.9. A typical electromagnetic wave.<br />
Based on the application of RFID systems the type of the polarization is con-<br />
sidered. It is very important to have knowledge of polarization in RFID because, the<br />
readability of the tag depends on the orientation of the tag.<br />
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