In the era of information, the influence of automatic identification technology is even more important today. As the ancestor of automatic identification, bar code technology has long been unable to cope with the rapid demand for information automation today. As a novel information technology, RF power amplifier technology has emerged, fully leveraging the technical advantages of automatic identification.
In practical applications, UHF(915MHz) radio frequency identification technology is sensitive to water-containing substances and cannot be used in humid environments. This is because the UHF signal has a high frequency and short wavelength, and is easily absorbed by substances with a large water content, resulting in energy weakening and a sharp decline in performance. However, long-distance HF(13.56MHz) radio frequency identification signals have low frequencies and long wavelengths.
Therefore, the design of RF power amplifier modules has become the most important aspect of the development of RF communications.