FEIG – ID ANT.U LOCFIELD® Antenna
The ID ANT.U LOCFIELD® Antenna is a uniquely flexible UHF RFID antenna designed to create customized reading zones. Its innovative cable-based structure allows it to be shaped into virtually any form — straight lines, circles, meanders, or complex patterns — enabling RFID coverage in spaces where traditional antennas are impractical or uneconomical.
With this antenna, users can tailor the reading field to fit shelves, doorways, machinery, or conveyor systems without performance loss. Its ability to perform in metallic and interference-prone environments makes it a reliable solution for industrial automation, retail, logistics, healthcare, aerospace, and automotive applications.
Easy to install and adjust, the ID ANT.U LOCFIELD® antenna provides a cost-effective and scalable RFID solution that simplifies complex system designs.
Specification
Electrical Characteristics
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Impedance: 50 Ω
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Gain: -7 dBi
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VSWR: < 1.8:1
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Beam Angle: Application-specific (depends on layout)
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Polarization: Linear (readable in multiple orientations with proper layout)
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Transmitting Power: +33 dBm (2 W)
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Operating Frequency:
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865–868 MHz (EU)
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902–928 MHz (FCC)
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Connector Type: SMA (male)
Mechanical & Environmental
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Cable Diameter: 2.8 mm or 5.0 mm (depending on variant)
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Operating Temperature: -20 °C to +65 °C
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Reading Range: 1 cm – 150 cm (depending on reader, transponder, and setup)
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Antenna Length Variants:
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0.37 m active / 0.80 m total (2.8 mm)
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1.00 m active / 1.50 m total (2.8 mm)
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2.00 m active / 2.50 m total (2.8 mm)
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2.00 m active / 3.00 m total (5.0 mm)
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Compatible Readers
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ID LRU1002, ID LRU3000, ID LRU3500 (UHF Long Range)
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ID MRU102 (UHF Mid Range)
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ID MRMU102 (UHF Reader Module)
Benefits
Installation and tuning require no special tools or RF engineering skills, making it simple to adjust range and coverage by repositioning or altering the cable layout.
The antenna’s cable design allows full flexibility in shaping reading fields — ideal for embedding RFID into shelves, doors, or machinery layouts.
Performs well even near metallic surfaces or reflective materials with minimal interference and consistent read stability.
Related Products
The ID RWA40.30-USB is a versatile desktop reader designed for contactless data exchange with common 125 kHz transponders. It is suitable for various office, administration, and industrial applications. With its USB interface, it allows for easy power supply and data exchange with a computer or other equipment. The reader has its own local intelligence, enabling both online and offline operation.
- Dimensions: 144 mm x 84 mm x 18 mm
- Weight: approximately 105 g
- Housing: Plastic (ASA) / Acrylic glass
- Color: white / black
- Protection class: IP42
- Operating frequency: 125 kHz
- MTBF: 500,000 h
- Supply voltage: 5 V, USB Bus powered
- Current consumption: max. 140 mA
- Antenna: integrated
- Interface: USB Full-Speed (12 MBit/s)
- Optical indicators: 2 LED (Green: Power and online/offline Blue: Transponder communication)
- Operation mode: Polling-Mode
- Supported transponders: 125 kHz Read Only transponders, 125 kHz Read / Write transponders
- USB CDC device driver: Windows 2000 SP4, Windows Server 2003, Windows XP SP2, Vista 32 Bit
- EEPROM: 512 Byte (1 x 106 write cycles)
- FLASH: 128 Byte (firmware update in application possible)
- Temperature range: Operation: -20 degree C up to +60 degree C, Storage: -40 degree C up to +85 degree C
- Relative air humidity: max. 95% (non-condensing)
The ID CPR30+ Desktop Reader is a proximity reader designed for contactless data exchange with ISO 15693 and ISO 14443-A/-B compliant transponders. It is compact, reliable, and compatible with NFC applications. With its NFC High Power Mode, it offers enhanced reading ranges and improved reliability, making it ideal for use in offices, workstations, or at the point of sale. The reader is form, fit, and function compatible with ID CPR30 and is qualified according to Zhaga Book 24, commonly used in the lighting industry. It is powered and connected to a computer or other equipment via the USB interface.
- Dimensions: 144 mm x 84 mm x 18 mm
- Weight: approximately 105 g
- Housing: Plastic (ASA) / Acrylic glass
- Color: white / black
- Protection class: IP42
- Operating frequency: 13.56 MHz
- Transmitting power: 100 mW / 300 mW
- Supply voltage: 5 V, USB Bus powered
- Current consumption: max. 150 mA / 220 mA
- Antenna: integrated
- Interface: USB Full-Speed (12 MBit/s)
- Indicators, optical: 2 LED (green / orange)
- Indicators, acoustic: Buzzer, integrated
- Supported transponders: ISO 15693, ISO 14443-A*/, ISO 14443-B
- Operation mode: Polling-Mode
- USB driver: Windows Server 2016 and 2019, Windows 10 and 11; 32 / 64 Bit
- Temperature range:
- Operation: -20 degree C up to +60 degree C
- Storage: -40 degree C up to +85 degree C
- Relative air humidity: max. 95% (non-condensing)
The UHF Mid-Range Antenna ID ANT.U150/150 by FEIG ELECTRONIC GmbH is a robust, compact, and aesthetically pleasing antenna designed for a variety of demanding environments. With a circular polarization that ensures optimal performance and reliable read ranges up to 4 meters, this antenna is ideal for logistics, industrial applications, railway systems, waste management, and retail inventory tracking. Its IP68 protection class makes it suitable for permanent outdoor use, even in harsh industrial settings. The ID ANT.U150/150 features a VESA100 standard mounting for easy installation and is compatible with multiple FEIG UHF readers, making it a versatile solution for efficient asset tracking and inventory management.
- Dimensions: 151 mm x 150 mm x 14.5 mm
- Weight: 230 g
- Housing: ABS, UV resistant, and fire-retardant
- Protection Class: IP68
- Gain: Approximately 5 dBic
- 3 dB Beam Width: 105 x 105
- Polarization: Circular (RHCP)
- Antenna Connector: SMA (female)
- Operating Frequencies:
EU Variant: 865 Mz – 868 MHz
FCC Variant: 902 MHz – 928 MHz
The ID ANT340 / 240 HF Pad Antenna is an elegantly designed, high-performance antenna for contactless data exchange with HF transponders. Ideal for office and library applications, it provides up to a 30 cm read range for seamless file and document tracking. The antenna is built with a sleek, flat profile, making it a versatile choice for desktop use. It comes equipped with a 230 cm coaxial cable and SMA plug, ensuring easy integration with compatible readers. Available in both plastic housing and module form, this antenna offers flexibility for various applications in secure, contactless communication systems.
- Dimensions: 337 mm x 237 mm x 8 mm
- Weight: 530 g
- Material: Plastic ABS housing
- Color: Grey-white
- Protection Class: IP40
- Operating Frequency: 13.56 MHz
- Maximum Transmitting Power:2 W
- Antenna Connection: 1 x SMA plug (50 ohm)
- Cable Length: 230 cm RG58 coaxial cable
- Operating Temperature: 0degree C to +55degree C
- Storage Temperature: -25degree C to +85degree C
- Humidity Range: 5% to 95% (non-condensing)
- Compliance: EMC EN 301 489, Safety EN 62368-1, EN 50364
The ID ANT40/30 and ID ANT100/100 are HF antennas designed for RFID proximity readers. They have an impedance of 50 ohm and operate at a frequency of 13.56 MHz. The antennas have a maximum transmitting power of 1 W and a data transfer rate of up to 424 kbits/s. The ID ANT100/100 has a reading distance of up to 14 cm. These antennas are suitable for applications such as eTicketing, eMobility, and Closed Loop Payment.
- Dimensions: ID ANT40/30 – 40 mm x 30 mm, ID ANT100/100 – 100 mm x 100 mm
- Interface: 2-pin connector or U.FL connector option
- Operating frequency: 13.56 MHz
- Impedance: 50 ohm
- Max. transmitting power: 1 W
- Max. reading distance: ID ANT40/30 – up to 7 cm, ID ANT100/100 – up to 14 cm
- Data transfer rate: ID ANT40/30 – up to 424 kbit/s, ID ANT100/100 – up to 212 kbit/s
- Power supply: Unneeded
- Temperature range: Operation -25 degree C up to +70 degree C, Storage -40degree C up to +85 degree C
- Relative air humidity: 0% up to 95% (non-condensing)
The ID ANT.MUX/ ID ANT.MUX.M8is an HF 8 channel Multiplexer that allows for the operation of up to 8 antennas with just one reader. It facilitates communication between the reader and the multiplexer via an antenna cable. The outputs of the multiplexer can be controlled by the reader, a host, or digital inputs. It features non-wearing electronic switching of the outputs and has a high switching rate of less than 1 ms. The multiplexer is available in a housing or as a module, with options for 8 channel or 4 channel configurations.
- Dimensions (w x h x d): 182 x 110 x 90 mm
- Weight: approximately 550 g
- Housing: Plastic ASA, with screwed plexiglas lid
- Protection class: IP65
- Operating frequency: 13.56 MHz
- Grommet: 12 x screwed cable gland M16 x 5
- Supply voltage: 12 – 24 V DC
- Power consumption: maximum 4.0 W
- Attenuation per channel: maximum 0.5 dB
- Max. perm. switching power: 8 W
- RF connections: 2x input (SMA jack), 8x output (SMA jack)
- RF switch: electronic switch with switching speed less than 1 ms
- Triggering: Reader via RF input 1, external pulse generator via digital input
- Digital inputs: 1x optocoupler (max. 24 V DC / 20 mA)
- Signal indicators: 1 x LED per channel, 3 x LED (Run / HF / Communication)
- Temperature range: Operation: -25 degree C up to +65 degree C, Storage: -40 degree C up to +80 degree C
- Standard conformity: EMC (EN 61000-6-3, EN 61000-6-2), Vibration (EN 60068-2-6, 10 Hz to 150 Hz: 0.075 mm / 1 g), Shock (EN 60068-2-27, Acceleration: 30 g)