Development and characterization of subsystems for a 2.45 GHz RFID research environment
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Nowadays, the Radio Frequency IDentification (RFID) technology is a very fast emerging and developing technology with a wide range of applications in different fields. Due to the technological progress, the number of applications has increased enormously, leading to the creation of many different standards in several distinct frequency bands for supporting these applications. The majority of this standards are not compatible with each other and moreover, there is not an unique UHF band standard worldwide. For this reason, a possible solution to achieve a compatible RFID system around the world is by means of the 2.45 GHz microwave ISM band. More and more this 2.45 GHz RFID band is considered and currently there are systems working at this frequency. This thesis describes the design and the implementation of a frontend for a 2.45 GHz RFID testbed. Inside the document, relevant RFID basics and the assumed regulations are discussed. The system concept designed is explained and selected elements are tested and optimized. The development of the transmitter and receiver board is described and finally for both boards the characterization and the measurements results are shown.