RFID Antenna, RFID Reader Antenna Design
The full name of RFID is Radio Frequency Identification, also known as radio frequency technology. This technology was invented in the 1940s, during World War IIto identify warplanes.RFID is unlike traditional contact systems, it uses radio frequency signals to transmit digital data in the form of radio waves, so the sensor does not need to be in contact with receiver, and there is no directional restriction to exchange data.RFID technology has developed so far, spanning many fields even integrating your life circle. Such as, logistics, military, retail, medical, food, transportation, access control...etc.
RFID works very easily as well. First, the reader uses the antenna to send a radio frequency signal of a specific frequency. After the tag enters the working area of the antenna, an induced current is generated due to electromagnetic induction, and the tag obtains energy and is activated.Second, the tag transmits its own code and other information to the antenna.Third, the antenna receives the carrier signal of the tag, and transmits it to reader through the antenna regulator. The reader decodes the signal, and then sends the data to the background main system for processing.Final, the main system judges the legitimacy of the card according to logic operation, makes corresponding processing and control for different settings, and sends out command signals to control the action of the actuator.
The most commonly used RFID antenna manufacturing processes mainly include coil winding method, etching method and printing method. When using the coil winding method to make the RFID tag antenna, the tag coil should be wound and fixed on a winding tool, which requires a large number of turns of the antenna coil. This method is generally used for RFID tags in the frequency range of 125 to 134KHz.
From an end-to-end perspective, an RFID system consists of electronic tags, reader antennas, readers, sensors/actuators/alarms, communication facilities, controllers, and application software. From the perspective of function realization, the RFID system can be divided into two parts: edge system and software system.
As a professional RFID antenna supplier in Taiwan, BJTEK emphatically focus on quality and performance of products. We provide wireless antennas with different properties to meet customers' needs You are completely welcomed to contact us if you have any further question.
