What are the advantages of 2.45 Ghz RFID systems over lower frequency RFID systems?
2.45 Ghz wavelength is shorter than lower frequency RFID systems, such as 900 Mhz. As a result, reader and tag antennas can typically be much smaller than those found on readers and tags that utilize lower frequencies. Additionally, since the wavelength is shorter, 2.45 Ghz systems are more directional which helps ensure that tags are read only when they are intended to be read.