ABSTRACT
From the structure, the tire can be divided into bias tires and radial tires, and according to different parts of the functions it can be consist of tread, belt, sidewall, inner liner layer, wire, cord and other materials, as shown in Figure 1. Different parts of tire have different rubber material, and have different characteristics. The tread portion required having abrasion resistance and old drainage properties, tire inner liner layer to ensure good air tightness and
1 INTRODUCTION
Radio Frequency Identification (RFID) is a contactless data transmission and reception technique between the data carrying device, called a RFID tag, and a RFID reader. The role of the antenna and its impact on the global performance of the tag is very critical, especially when one considers applications in the UHF bands. Indeed, in that case and in order to obtain functional tags, it is necessary to take into account the RFID chip characteristics, environment of the application and some constraints like minimum Read-Range, size of the tag and frequency and power regulations. Passive RFID tags have no on-board battery, but are powered by the energy received by their antenna. The read range of a passive tag is limited by the ability to provide sufficient voltage and power at the antenna to power the tag’s integrated circuit, and also if affected by the environment.
