What is ultra-high frequency (UHF) passive RFID tag?

When it comes to radio frequency identification (RFID) solutions, ultra-high frequency (UHF) passive RFID tags are an extremely popular option because they are very cost-effective, yet still have one of the longest read ranges. They have no power of their own — which is why they are called “passive” tags — so they are powered by the radio frequency energy transmitted from RFID readers/antennas. A UHF passive RFID tag consists of four sub-components: and RFID chip, an antenna, an inlay, and a carrier.

The RFID chip is an integrated circuit that provides several key attributes related to operating frequency, memory type and capacity, data transmission/receipt, and power. In other words, the chip is the brains of the RFID tag. The antenna, which is attached to the chip, collects radio frequency waves used to power the chip. The antenna also transmits attribute data from the chip. Together, the chip and the antenna comprise the RFID inlay.

An inlay is typically a plastic substrate that the chip and antenna are placed on so they can be connected. Inlays come in two types: wet and dry. A wet inlay features an adhesive so it can be applied to a surface; a dry inlay has no adhesive. The choice of inlay depends on the purpose and placement of the tag on an object.

There are literally hundreds of different types of inlays, each designed with a specific application in mind. Different industries have different requirements for inlays, so there are inlays for pharmaceutical, automotive, retail, manufacturing, and healthcare applications. The inlays are designed for optimum performance when affixed to the material they are intended for. Inlay manufacturers ship their products to RFID tag producers, like Lowry Solutions, who then produce finished products that are ready to be applied.

The carrier is the material or package that the inlay is placed in. The simplest carrier is label stock (think barcode label), where the inlay is laminated into the label stock using specialized converting equipment. Examples of other carriers include plastic capsules or ID badges. Sometimes carriers are made of specialized materials that make it easy to mount the RFID tag on liquid containers or metal, or in high-heat or hazardous environments. These types of carriers are often referred to as “hard tags.”

View UHF passive rfid tags,please click http://www.oppiot.com

Industrail Passive UHF Tag OPP4215 with High Temperature Resistance

high temperature RFID tags
high temperature RFID tags

OPP IOT launched a series of high temperature UHF Passive  tags OPP4215 for industrial markets and health care line.

The high temperature RFID tags OPP4215 are specially designed as the most rugged On-metal RFID tags in the world for harsh application environment. Except featuring On-metal usage and a new anti-UV industry grade polymer casing and IP68 Ingress Protection rating for outdoor applications, it could withstand long term super high temp 250℃(280°С for 50 minutes, 250°С for 150minutes). The OPP4215 tags are with flexible installation, such as rivets, screws fixed, or two-side glue, super glue etc. Also we recommend the brand high temperature glue to work with the tag for your harsh solutions. This series of Passive UHF RFID tags reliability test include: high temperature and high pressure test, high and low temperature alternating test and vibration test. The high level of durability improves RFID tag lifetime of up to 10 years, even for harsh industrial environments and we see an even greater return on investment.

OPP0606 Waterproof On-Metal RFID UHF Tag

UHF on-metal RFID tag
UHF on-metal RFID tag

OPP0606 UHF on-metal RFID tag is a perfect choice in applications which require tags to be applied in metallic environment. OPP0606 is designed as a square(size:6*6mm) on metal tracking tag for use in industrial applications. And it can operate well in harsh conditions, including resist against high temperature up to 150 degrees centigrade.

Besides, this on-metal RFID tag is available with Black,Red,Blue,Greenand White options.

Functional Specifications:
RFID Protocol EPC Class1 Gen2, ISO18000-6C
Frequency:US 902-928MHz, EU 865-868MHz
IC type:Alien Higgs-3
Memory:EPC 96bits (Up to 480bits) , USER 512bits, TID64bits
Write Cycles:100,000times
Functionality:Read/write
Data Retention:Up to 50 Years
Applicable Surface:Metal Surfaces
Read Range (On Metal):
(Fix Reader:ThingMagic M6-E, 36dBm/4W) 110cm – (US) 902-928MHz, on metal
110cm – (EU) 865-868MHz, on metal
Read Range(On Metal):
(Handheld Reader: OP9908,R2000,33dBm/2W)
80cm – (US) 902-928MHz, on metal
80cm – (EU) 865-868MHz, on metal
Warranty:1 Year

Physical Specification:
Size:6x6mm
Thickness:3.0mm without IC bump, 4.0mm with IC bump
Material:FR4 (PCB)
Colour:Black (Red, Blue, Green, White)
Mounting Methods:Adhesive, Screw
Weight:0.3g

Enivironmenal Specification:
IP Rating: IP68
Storage Temperature:-40°C to +150°C
Operation Temperature:-40°C to +100°C
Certifications:Reach Approved,RoHS Approved,CE Approved

More view http://www.oppiot.com/uhf-metal-tags-atom-series-opp0606.html

UHF RFID Frequency Regulations

UHF RFID Frequencies vary in each country based on each country’s regulations. Each country adopts an UHF RFID frequency that best fits within that country. These frequency ranges and standards were first put in place by a group of organizations – the International Organization for Standardization (ISO), the International Electrotechnical Commission (IEC), ASTM International, and EPC Global. These frequency bands are now known as the ISM bands, or the Industrial Scientific and Medical Bands.

UHF RFID Technology uses two main frequency ranges — 902-928 MHz and 865-868 MHz; however, a few countries have adopted either multiple bands or unique ranges on the ISM standard. One such country is Brazil who has adopted two uncommon frequency ranges within the 902-928 MHz range — one being 902-907.5 MHz and the other being 915-928 MHz. In order for UHF RFID equipment to be in compliance with Brazil’s regulations, the RFID reader needs to be set to broadcast within Brazil’s specific frequency ranges. This means that if you bring a UHF RFID reader to Brazil and operate using the full 902-928 MHz frequency range, you are in violation of local governmental regulations.

Frequency ranges also are subject to change. Japan, who previously used two very unique frequency ranges — 952-956.4 MHz and 952-957.6 MHz — has now changed to a frequency range within the 902-928 MHz range. Japan’s frequency range is currently 916.7-920.9 MHz (although 925-957.6 MHz will still be effective until March 31, 2018).

The map above shows the most common UHF frequencies for each country, but some countries have not adopted any frequency range yet. An example of a country that has not adopted a set frequency range would be Egypt who is currently working on getting that into place (as of the time of this article’s original published date).

RFID tags application in industry and logistics

Radio Frequency Identification is a ideal technology for tracking assets.

Now there is no need to store full description about them every time. RFID tags are the simpler way to track them. Every tagged asset can be tracked by reading the upcoming radio signals from each tag. Our asset tracking tags enable you to instantly get the general location of tagged objects anywhere within a specified space.

Asset tracking allows you to monitor the status, location and availability in your extended operations; manage your assets on demand by knowing where they are and boost production by getting your assets where they need to be without delay. Integrate your business processes with on demand knowledge of work-in-process manufacturing, and make more informed decisions.

Asset tracking can be used in various industries like baggage handling, parcel handling, supply chain, service industries, distribution logistics and manufacturing companies to identify goods & objects in an industrial environment.RFID Industrial Asset Management is a powerful tool to boost business activities for the maximum profits. The Tag Factory tag products meet the requirements of harsh industrial environments.

Heat Resistant RFID Tags OPP4215

Heat Resistant RFID Tags OPP4215 are designed for industrial environments especially for high temperature environments for long periods of time. The tag is also flame retardant tag.

The Heat Resistant RFID Tags OPP4215 can be used in industrial high temperature environments; high and low temperature test labs,auto part identification,etc.

Heat Resistant RFID Tags
Heat Resistant RFID Tags

Heat Resistant RFID Tags Key Features:
– Excellent heat resistant physical properties(withstand up to 280 °С for 50 minutes, 250°С for 150minutes).
– Low Temperature resistant up to -55 °С
– Flame retardant protection in industrial environments;

Heat Resistant RFID Tags OPP4215 Functional Specifications:
RFID Protocol:EPC Class1 Gen2, ISO18000-6C
Frequency:US 902-928MHz, EU 865-868MHz
IC type:Alien Higgs-4
Memory:EPC 96bits (Up to 480bits) , USER 512bits, TID64bits
Write Cycles:100,000times
Functionality:Read/write
Data Retention:Up to 50 Years
Applicable Surface:Metal Surfaces
Read Range(On Metal):
(Fix Reader:ThingMagic M6-E, 36dBm/4W) Up to 680cm – (US) 902-928MHz, on metal
Up to 700cm – (EU) 865-868MHz, on metal
Read Range(On Metal):
(Handheld Reader: OP9908,R2000,33dBm/2W)
Up to 530cm – (US) 902-928MHz, on metal
Up to 550cm – (EU) 865-868MHz, on metal
Warranty:1 Year

Heat Resistant RFID Tags OPP4215 Physical Specification:
Size:42x15mm, (Hole: D4mmx2)
Thickness:2.1mm without IC bump, 2.8mm with IC bump
Material:PTFE
Colour:Black
Mounting Methods:Adhesive, Screw
Weight:2.2g

Heat Resistant RFID Tags OPP4215 Enivironmenal Specification:
IP Rating:IP68
Storage Temperature:-55°C to +200°C (280°С for 50 minutes, 250°С for 150minutes)
Operation Temperature:-40°C to +150°C (working 10hours in 180°С)
Certifications:Reach Approved,RoHS Approved,CE Approved

High-temperature RFID tags from OPP IOT

OPP IOT presents a wide collection of high-temperature RFID tags with different protocols design to provide asset tracking even in the harshest environments.

We provide a selection of Ultra-High frequency tags, with key features such as high heat resistance and compact form factors, which are durable and have rugged housing. These types of tags are available in UHF 860-960 MHz frequency range.

Additionally, most of the high-temperature RFID tags are compliant with the Restriction of Hazardous Substances (RoHS) directive, European Conformity (CE) directive, FCC Declaration of conformity and the GEN 2 IMPINJI.

Further more, some of the tags support protocols such as protocols ISO 18000-6C, EPC Class1 Gen 2. The high-temperature RFID tags also provide various options for memory capacity that includes 240 bits, 96 bits EPC, 512 bits R/W, TID 32 bit, and TID 64 bits. Tags of this kind have IP68 protection standards by which they are protected from total dust ingress and can withstand immersion in water up to a specified pressure.

High-temperature RFID tags have an operating temperature that ranges from -40 °C to +150 °C,specially OPP4215 UHF tags can work in 280°С for 50 minutes, 250°С for 150minutes.

RFID Tags for every business need

There is a wide range of RFID Tags available for different applications. RFID Tags can be passive, active or battery assisted passive. They can be read only or read/write. The business need and the environment they will be used in will dictate which tags are best suited for each client.

Different types of tags have different data capacities. Typically tags have 224 bits to circa 1k bits of user memory for LF tags, 2k bits for HF tags, 64k bits for UHF tags.

The relatively low capacity of data that can be held on tags means that applications need to be carefully designed and generally involve linking data held on the tag with data held on an external database.

Tags can be read only (supplied with pre-coded identity data only) or writable, allowing for limited updating of information on the tag.

Different tags have the ability to cope with different physical environments, shock and vibration, exposure to magnetic fields, moisture and chemicals and so on. The size of different tags will also determine antenna size and performance. The size (and in some cases the orientation) of the tag’s antenna can affect read ranges, read response times and read reliability rates. As a result it is important to consider the performance of the tag in a particular application before selecting the tags to be used.

What read range of UHF tags do you need?

“Everybody wants a small tag with long range – it’s probably the single most wished-for tag people ask me about. They only have room for a 1” by 1” tag, but they want to read it from 40 feet away. And that’s something that physics just cannot deliver in an inexpensive, passive UHF tag. Generally speaking,” smile LV from OPP IOT explains, “with passive tags, the longer the read range, the bigger the antenna.

“Do you want to read items from a distance, like for identifying inventory in a warehouse, or is this a security or authentication application, where you’d want the tag to come into much closer contact with a reader before registering? Be ready to answer those types of questions, because read range definitely influences tag selection.”

UHF tags application in Asset Management

UHF tags application in Asset Management

The way to manually implement the asset management including the asset increase, distribution, storage, disposal, etc. can never satisfy the real demands anymore for the enterprises and affiliated institutions. The traditional asset management method has caused problems such as the complicated processes, low efficiency, not real time, difficulties in administration, mistakes, and so on, which finally lead to the decrease of the asset utilization rate and cost increase.

Currently asset management is one of the major field for the increase of RFID applications. The system mainly adopts the contactless RFID automatic identification technology, uses different RFID tags for different materials, and writes the use condition into the RFID tag. During the check on the asset, the handheld mobile readers can be used to read the RFID tags, then connect with the central asset management system, realize the automatic, real time, highly efficient, precise asset use condition management on the asset increase, distribution, laying aside, disposal, etc. Thus asset use efficiency can be enhanced, and operation cost can be reduced accordingly.