Retail is the main application field of RFID solutions. RFID tags are very small. By embedding RFID tags in brand products or jewelry to verify the source of goods, it helps to prevent counterfeit goods. In general, the hosting control of retail stores and warehouses is performed by reading the bar code or QR code of each individual item. However, if RFID tags are used, all product data can be read at the same time at one time, and the workload of top intelligent refrigerators can be greatly reduced. In addition, there are more and more shopping malls using RFID automatic checkout machine with POS system to realize unmanned stores or self checkout. In addition, by using RFID technology, the antenna of RFID tag can be directly printed on the packaging made of paper, and the product packaging can be turned into RFID tag.