{"id":16791,"date":"2021-10-26T17:03:45","date_gmt":"2021-10-26T15:03:45","guid":{"rendered":"https:\/\/caen-new.filanda.it\/the-farther-the-better\/"},"modified":"2021-10-26T17:03:45","modified_gmt":"2021-10-26T15:03:45","slug":"the-farther-the-better","status":"publish","type":"post","link":"https:\/\/caen-new.filanda.it\/it\/the-farther-the-better\/","title":{"rendered":"The farther the better"},"content":{"rendered":"

There are many reasons why RAIN (UHF) RFID technology is having\u00a0success\u00a0<\/span><\/strong>, one of the more important is the\u00a0ability to read tags at distance of some meters<\/span><\/strong>.<\/p>\n

But why it is possible with RAIN RFID and not with other passive RFID technologies like LF or HF\/NFC ?<\/p>\n

All the former passive RFID technologies like, as said, LF and HF\/NFC use magnetic field to transfer energy and information.\u00a0To obtain this result both the reader antenna and the tag antenna are formed by coils that needs to stay in proximity in order to obtain the so called \u201cinductive coupling\u201d that permits the energy transfer between the antenna of the reader and the one of the tag.<\/p>\n

This is the reason why the reading distance of LF and HF\/NFC technology is typically limited to few centimeters and, only using very high-power levels and very big antennas, it can reach a distance of a meter.<\/p>\n

RAIN technology\u00a0 uses instead the electromagnetic field<\/span><\/strong>\u00a0to transfer energy and information, the same used by cell phones, radio and tv communication.<\/p>\n

In this case\u00a0the antenna of the reader\u00a0and the one of the tag<\/span><\/strong>\u00a0don\u2019t need to \u201ccouple\u201d so they\u00a0don\u2019t need to stay in proximity<\/span><\/strong>\u00a0and the energy and information exchange can happen at longer distances. The reading distance is anyway limited because the tags are\u00a0passive<\/a>\u00a0<\/span><\/strong>and need to harvest the energy from the reader signal, energy that decrease with the square of the distance, but it can reach a value of some meters, up to\u00a020 mt<\/span><\/strong>. in some situation, a\u00a0distance that opened a new range of applications<\/span>.<\/strong><\/p>\n

We typically talk about reading distance, but it is more the volume covered by the electromagnetic field that is important in many scenarios, especially for inventory applications, because it permits bulk readings, i.e. reading of hundreds of tags in few seconds.
\nThis is also related to another advantage of the\u00a0RAIN technology<\/span><\/strong>: using higher frequency it permits to exchange information at\u00a0\u00a0higher speed<\/span><\/strong>.<\/p>\n

All these improvements are possible from the beginning of this century because of the availability of very low power demanding chips (the energy transferred with the electromagnetic field is much lower than the energy transferred using magnetic field) and the continuous evolution in the technology on both readers and tags is improving the performances every year.<\/p>\n","protected":false},"excerpt":{"rendered":"

There are many reasons why RAIN (UHF) RFID technology is having\u00a0success\u00a0, one of the more important is the\u00a0ability…<\/p>\n","protected":false},"author":1,"featured_media":15878,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[121],"tags":[],"class_list":["post-16791","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-it"],"acf":[],"yoast_head":"\nThe farther the better - CAEN RFID<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The farther the better - CAEN RFID\" \/>\n<meta property=\"og:description\" content=\"There are many reasons why RAIN (UHF) RFID technology is having\u00a0success\u00a0, one of the more important is the\u00a0ability...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/caen-new.filanda.it\/it\/the-farther-the-better\/\" \/>\n<meta property=\"og:site_name\" content=\"CAEN RFID\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-26T15:03:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/caen-new.filanda.it\/wp-content\/uploads\/2021\/11\/post_distance_rev01.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Adpower\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"Adpower\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/caen-new.filanda.it\/it\/the-farther-the-better\/\",\"url\":\"https:\/\/caen-new.filanda.it\/it\/the-farther-the-better\/\",\"name\":\"The farther the better - 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