CHAPTER 6
RFID PLANAR ANTENNA—SMART DESIGN APPROACH AT UHF BAND
6.1 INTRODUCTION
Numerous developments are reported globally in conventional RFID technology in the ultra-high-frequency (UHF) band. Following the standardization of ISO 18000-6C [1] by EPC global [2], RFID operations got a global boost. The band allocated to RFID technology in the UHF band is around 800 MHz in Europe and the Asian nations like Brunei, Hong Kong, Malaysia, and Singapore [3] and [2]. However, for countries like the United States, Australia, or Japan, the frequency range is around 900 MHz. To make a tag and reader work in both the United States and Europe, the solution is to make frequency-agile or dual-band systems that work in both the frequencies of 800 MHz and 900 MHz. The other option, being taken up by the government organizations, is to come to a general agreement for uniform frequency allocation.
With the different frequency allocations, developments are being reported for accessory supporting components also like Power Amplifiers working in the range of 800–1000 MHz [4]. New IP backbones are developed to provide intercompatibility between RFID systems or digital radio working at 800 MHz with an analog user [5]. The added feature of this work ...
