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Knowledge
Feb 08, 2026HF RFID Standards (13.56 MHz): A Practical Guide to ISO 14443, ISO 15693, ISO 18000-3, NFC, and EMV
HF RFID runs at 13.56 MHz and is widely used for access control badges, contactless payments, libraries, healthcare wristbands, and NFC phone tap experiences. When people say “HF RFID,” they often mean very different things—because HF is a frequency band, while standards define the protocol stack (how tags and readers actually communicate). More about HF […]
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Knowledge
Jan 25, 2026
Passive RFID Tags: What They Are, How They Work, Types, Use Cases, Pros/Cons & Buying Guide
A passive RFID tag is the most common RFID tag type in the world. It has no battery. Instead, it is powered by the electromagnetic field generated by an RFID reader. Passive tags are the foundation of RAIN UHF RFID item labeling (retail, logistics), HF/NFC access cards and smart labels, and many LF identification systems. This guide explains what passive tags are, how they work, the differences […]
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Knowledge
Jan 23, 2026
HF RFID (13.56 MHz) Explained: How It Works, Standards, Use Cases, Pros/Cons & Selection Guide
HF RFID (High-Frequency Radio Frequency Identification) is a widely used RFID technology operating at 13.56 MHz. It’s best known for short-range, controlled reads, strong support for secure credentials, and the fact that NFC is built on the same HF band. If your project needs a tap / close-range user experience—like access control badges, library book tags, healthcare wristbands, or secure ID cards—HF […]
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Knowledge
Jan 15, 2026
LF vs HF vs UHF RFID: Differences, Ranges, Use Cases, Pros/Cons & How to Choose
RFID is often grouped into three main frequency families: LF (Low Frequency), HF (High Frequency), and UHF (Ultra-High Frequency). Picking the right band is one of the biggest decisions in any RFID project because it affects read range, speed, tag cost, phone compatibility, performance near metal/liquids, and system architecture. This guide compares LF vs HF vs UHF in a practical way […]
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Knowledge
Jan 13, 2026
Near-Field Coupling in RFID: What It Means, How It Works, and Why It Matters
Near-field coupling is the communication method used by LF (125/134 kHz) and HF (13.56 MHz, including NFC) RFID systems. Instead of “radiating” like a long-range radio link, near-field RFID works more like a transformer: a reader coil creates a magnetic field, and the tag coil couples to that field to power up and exchange data. This is why LF/HF/NFC are typically short-range, […]
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Knowledge
Jan 10, 2026
What Is RFID? How RFID Works, Types (LF/HF/NFC/UHF), Applications, Pros/Cons & Buyer Guide
RFID—Radio Frequency Identification—is a wireless technology that identifies objects using radio waves. An RFID system can detect items without line-of-sight, often in bulk, and can automate tracking across warehouses, factories, retail stores, hospitals, and security systems. This guide explains what RFID is, how it works, RFID frequencies (LF/HF/NFC/UHF/RAIN), tags and readers, passive vs active vs […]
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