RFID Systems and Their Development

The review of prospects of RFID systems is carried out and the example of some designs of antennas is given. As a result of the survey, it was found that the most attractive antenna for such systems is dipole antenna. In this work we used a traditional-shaped radiator with a cutout inside the resonator, and two bevels at two angles of the radiator, which makes it possible to make the antenna work at two frequencies (two operating ranges of Vietnam). The antenna operates in the band 866-867 and 920-921 MHz, with amplification factors of - 0.2 dB.