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RFID Antennas

Category Introduction

RFID Antennas are used to receive/transmit electromagnetic waves. These antennas are designed to be used at specific radio frequencies by devices that identify and track items using electronic labels (tags). The characteristics are frequency, features, and size/dimensions. The frequency ranges from 125 kHz to 5.85 GHz with the features being bistatic/6 dBi gain max, compact size, LR loop, LR or MR/loop, LR/gate, monostatic/6 dBi gain max, MR/handheld loop or pad, near field communication (NFC), panel with IP50 housing, PR/pad, SMA style, and UHF LR/circular polarized.

Product List

202 Items
PDF Mfr Part # Quantity
Available		 UnitPrice RFQ Series Packaging Product StatusFrequencyFeaturesSize / Dimension
FXR.01.07.0100C.A
FXR.01.07.0100C.A
RFID ANTENNA FLEX READER MHFI
Taoglas Limited
 76 $12.63
Bulk Active13.56MHzNear Field Communications (NFC)-
CAS143-47
CAS143-47
ANTENNA RECEIVER
Sumida America Components Inc.
 114 $5.71
Tape & Reel (TR) Active125kHz--
FXR.07.52.0075X.A
FXR.07.52.0075X.A
ANTENNA
Taoglas Limited
 116 $8.51
Bag Active13.56MHz--
1462360051
1462360051
NFC ANTENNA TAG 15X15MM
Molex
 884 $0.83
146236 Tray Active13.56MHzNear Field Communications (NFC)15.00mm L x 15.00mm W x 0.17mm H
B82450A7204A000
B82450A7204A000
TRANSPONDER COIL 11MM 7.2MH 3%
EPCOS - TDK Electronics
 133 $1.83
Automotive, AEC-Q200, B82450A Tape & Reel (TR) Active125kHz-11.40mm L x 3.50mm W x 2.40mm H
1462360151
1462360151
NFC ANTENNA 15.00MM BY 15.00MM B
Molex
 14 $1.48
146236 Tray Active13.56MHzNear Field Communications (NFC)15.00mm L x 15.00mm W x 0.27mm H
W7001
W7001
NFC STAMP FLEX ANTENNA
PulseLarsen Antennas
 90 $1.56
Bulk Active13.56MHz25mm x 25mm x 0.12mm25.00mm L x 25.00mm W x 0.12mm H
1462360031
1462360031
RECTANGLE STANDARD NFC ANTENNA 4
Molex
 186 $2.61
146236 Bulk Active13.56MHzNear Field Communications (NFC)55.00mm L x 45.00mm W x 0.17mm H
1462360121
1462360121
STANDARD NFC ANTENNA 34X46(WITH
Molex
 42 $2.80
146236 Tray Active13.56MHzNear Field Communications (NFC)46.10mm L x 34.39mm W x 0.27mm H
AS705-125A-XH
AS705-125A-XH
ANTENNA
Sumida America Components Inc.
 118 $6.24
Bulk Active125kHz--
1462362102
1462362102
NFC ANTENNA FERRITE 15.00MM BY 2
Molex
 133 $6.93
146236 Tray Active13.56MHzNear Field Communications (NFC)15.00mm L x 25.00mm W x 0.27mm H
AFAR3026-SN
AFAR3026-SN
RF ANT 13.56MHZ PATCH
Abracon LLC
 99 $7.15
ABAR Bulk Active13.56MHz100mm Cable30.00mm L x 26.50mm W
1462362111
1462362111
NFC COIL 23X27MM WITH AWG28 WIRE
Molex
 29 $7.38
146236 Tray Active13.56MHzNear Field Communications (NFC)23.00mm L x 27.30mm W x 0.27mm H
W7002
W7002
NFC WIRE LOOP ANTENNA
PulseLarsen Antennas
 68 $7.52
Bulk Active13.56MHz94.6mm x 56.8mm x 3.65mm94.60mm L x 56.80mm W x 3.65mm H
FXR.06.52.0075X.A
FXR.06.52.0075X.A
ANTENNA
Taoglas Limited
 102 $8.62
Bag Active13.56MHz--
FXR.06.52.0075X.A.DG
FXR.06.52.0075X.A.DG
ANTENNA
Taoglas Limited
 85 $11.49
Bag Active13.56MHz--
1462362131
1462362131
NFC COIL 45X55MM WITH AWG28 WIRE
Molex
 39 $12.06
146236 Tray Active13.56MHzNear Field Communications (NFC)45.00mm L x 55.00mm W x 0.27mm H
B82450A1084C000
B82450A1084C000
RFID TRANSPONDER COIL 125KHZ SMT
EPCOS - TDK Electronics
 98 $1.33
Automotive, AEC-Q200, B82450A Tape & Reel (TR) Active125kHz-3.20mm L x 2.50mm W x 2.20mm H
B82451N4754E002
B82451N4754E002
TRANSPONDER COIL 4.75MH SMD
EPCOS - TDK Electronics
 189 $1.76
Automotive, AEC-Q200, B82451N Tape & Reel (TR) Active125kHz--
B82451L2364E402
B82451L2364E402
TRANSPONDER COIL 2.36MH 20 OHM
EPCOS - TDK Electronics
 146 $1.76
Automotive, AEC-Q200, B82451L Tape & Reel (TR) Active125kHz--

About RFID Antennas

What are RFID Antennas?

RFID Antennas

RFID antennas are integral components of Radio Frequency Identification (RFID) systems, responsible for transmitting and receiving radio waves to communicate with RFID tags. These antennas convert electrical signals into radio waves and vice versa, enabling the exchange of data between the RFID reader and the tag. Operating on the principle of electromagnetic induction, RFID antennas generate an electromagnetic field that powers passive tags and facilitates data transfer. The efficiency and range of an RFID system largely depend on the design and placement of these antennas, making them crucial for effective RFID operations.

Types of RFID Antennas

1. Linear Polarized Antennas

Linear polarized antennas are designed to focus the radio waves in a single plane, making them ideal for applications where the orientation of the RFID tag is consistent. These antennas are commonly used in conveyor belt systems where tags pass through in a predictable manner. Their focused beam allows for longer read ranges and higher accuracy in such controlled environments.

2. Circular Polarized Antennas

Circular polarized antennas emit radio waves in a spiral pattern, allowing them to read tags regardless of their orientation. This makes them suitable for environments where tag orientation is unpredictable, such as retail stores or warehouses. The versatility of circular polarized antennas ensures reliable tag reading even when tags are placed at various angles.

3. Near-Field Antennas

Near-field antennas operate at close proximity to the RFID tags, typically within a few centimeters. They are used in applications requiring precise tag identification, such as payment systems or access control. These antennas are designed to minimize interference and provide accurate readings in densely populated tag environments.

4. Far-Field Antennas

Far-field antennas are designed for long-range applications, capable of reading tags from several meters away. They are commonly used in logistics and supply chain management, where large areas need to be covered. These antennas are optimized for high-speed reading and can handle multiple tags simultaneously, making them ideal for tracking goods in transit.

How to choose RFID Antennas?

Choosing the right RFID antenna involves considering several key parameters:

  • Frequency Range: Ensure compatibility with the RFID system's operating frequency, typically UHF, HF, or LF.
  • Polarization: Select between linear or circular polarization based on tag orientation consistency.
  • Read Range: Determine the required read range for your application, whether near-field or far-field.
  • Environmental Factors: Consider environmental conditions such as temperature, humidity, and potential interference sources.
  • Installation Requirements: Evaluate the physical space and mounting options available for antenna installation.

When evaluating product quality and reliability, consider the supplier's reputation, customer reviews, and warranty offerings. Testing antennas in real-world conditions can also provide insights into their performance and durability.

Applications of RFID Antennas

1. Retail Industry

In retail, RFID antennas are used for inventory management, enabling real-time tracking of stock levels and reducing shrinkage. They facilitate quick and accurate scanning of items at checkout, enhancing customer experience and operational efficiency.

2. Healthcare Sector

RFID antennas in healthcare are employed for patient tracking, equipment management, and medication administration. They ensure patient safety by verifying identities and tracking the movement of medical assets within facilities.

3. Logistics and Supply Chain

In logistics, RFID antennas streamline the tracking of goods throughout the supply chain. They provide visibility into the movement of products, improving inventory accuracy and reducing delays in shipping and receiving processes.

4. Access Control Systems

RFID antennas are integral to access control systems, providing secure and efficient entry management in buildings and restricted areas. They enable contactless authentication, enhancing security and user convenience.

5. Manufacturing Industry

In manufacturing, RFID antennas are used for tracking parts and components on assembly lines. They ensure the correct sequencing of operations and facilitate quality control by monitoring production processes in real-time.