It is available for outdoors due to the high-quality ABS materials.
Pleasing in appearance, environmental adaptability, easy installation
Long strip shape, good installation concealment.
Small angle design, small adjacent channel interference, and good anti-cross-reading performance.
Suitable for RFID vehicle management system or ETC with ETSI/FCC standard frequency band optional.
Frequency: 865-868Mhz ETSI / 902-928Mhz FCC (optinal)
Gain(dBi): 12±0.5
Beam Width(°): Hor:30±1 Ver: 70±2
VSWR: ≤1.3/≤2.0
Impedance(Ω): 50
Antenna Polarization: Linear / Circular (optional)
Antenna Interface: SMA / TNC-N
MAX.Power(W): 50
Lightning protection: DC ground
Connector: N-50KFD
Connector position: At the bottom
Dimension(mm): 550*230*40mm
Antenna weight(kg): 1.5
Reflector material: Aluminum
Radome material: ABS
Radome color: White or Grey-White
International Protection: IP65
Operating temperature(℃): -40~55
Mounting hardware(mm): φ100-300
12dBi circular or linear reader antenna typically refers to an RFID (Radio-Frequency Identification) antenna used in RFID systems for reading and communicating with RFID tags. Let's break down the key components and concepts in this term:
1. dBi (decibels isotropic): This is a unit of measurement that describes the gain of an antenna compared to an isotropic radiator (an idealized omnidirectional antenna). A higher dBi value indicates greater directional gain.
2. Circular Polarization: Circular polarization refers to the orientation of the electromagnetic field generated by the antenna. Circularly polarized antennas are commonly used in RFID applications because they provide more consistent performance regardless of the tag's orientation.
3. Linear Polarization: Linear polarization means that the electromagnetic waves radiated by the antenna are oscillating in a straight line. Linearly polarized antennas are also used in RFID systems, and they are often simpler in design compared to circularly polarized antennas.
4. Reader Antenna: In an RFID system, the reader antenna is responsible for transmitting RF signals to power up RFID tags and receive data from them. The design of the antenna, including its gain and polarization, can impact the performance and range of the RFID system.
A 12dBi circular/linear reader antenna, therefore, is an antenna designed for an RFID reader system with a gain of 12 decibels. The choice between circular and linear polarization may depend on the specific requirements of the RFID application. Circular polarization is often preferred in situations where the orientation of RFID tags cannot be controlled or is variable, as it provides better performance in such scenarios.
It's worth noting that RFID systems can be used in various applications, including inventory tracking, access control, and logistics, among others. The selection of the right antenna depends on factors such as the environment, the type of RFID tags used, and the desired read range.