HF & LF TAGs

RFID tags come in different frequency and shape: Low Frequency (LF) ideal for Animal Tracking & Industrial Automation. High Frequency (HF) ideal for Smart Cards, Library Management

RFID tags come in different frequency ranges, with Low Frequency (LF) and High Frequency (HF) being two of the most commonly used types.

Each frequency range has its advantages, with LF being more resistant to interference from liquids and metals, while HF offers faster data transfer and better anti-collision capabilities.

TAGs are generally compact devices comprised of a paper or plastic substrate that holds a contactless chip connected to an antenna.

These components work together to provide essential functionality in various applications.

They replace and function exactly like contactless cards.

Thanks to their small size, they can be glued onto any surface, sometimes even directly onto the PVC card itself.

The example above clarifies the prevalent use of tags. In this case, the simple PVC card becomes an HID PROX card

TECHNICAL DESCRIPTION OF HF & LF TAGs

LF (Low Frequency) RFID Tags

• Frequency Range: 125 kHz – 134.2 kHz
• Read Range: Short (typically up to 10 cm)
• Interference Resistance: Works well around liquids and metals
• Data Transfer Speed: Slower compared to HF and UHF
• Common Applications:
  • Animal tracking (livestock identification)
  • Automotive keyfobs (keyless entry systems)
  • Secure access control (building entry)

HF (High Frequency) RFID Tags

• Frequency Range: 13.56 MHz
• Read Range: Medium (10 cm to 1 meter)
• Interference Resistance: Moderate resistance to environmental factors
• Data Transfer Speed: Faster than LF
• Common Applications:
  • Smart cards (public transport, payment systems)
  • Library book tracking
  • Event ticketing and access control

LF tags are ideal for short-range applications where interference from liquids or metals is a concern, while HF tags offer better data transfer speeds and anti-collision capabilities, making them suitable for environments where multiple tags need to be read simultaneously.

applications of lf & hf tags

LF (Low Frequency) and HF (High Frequency) RFID tags are used in various industries for identification, tracking, and security purposes. Here are some of their key applications:

LF RFID Tag Applications (125 kHz – 134.2 kHz)

• Animal Tracking: Used for livestock identification and pet microchipping.
• Automotive Security: Keyless entry systems in vehicles.
• Access Control: Secure entry for buildings and restricted areas.
• Industrial Automation: Tracking tools and equipment in manufacturing.
• Healthcare: Patient identification and medical equipment tracking.

HF RFID Tag Applications (13.56 MHz)

• Smart Cards: Used in public transport, payment systems, and ID cards.
• Library Management: Book tracking and automated checkouts.
• Event Ticketing: Contactless access for concerts and conferences.
• Retail & Loyalty Programs: Secure transactions and membership identification.
• Healthcare & Pharmaceuticals: Tracking medical supplies and patient records.

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