Rfid Tag Antenna Manufacturing Technology

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Currently, there are three types of antenna,  Technique: etching / stamping antenna (etched / punched antenna)  , Printed antenna (printed antenna), and wound antenna. Among them, the winding  And printing technology in China has been more widely used, most of Taiwan's RFID tags  Manufacturers are also using this technology; and etching techniques are mainly used in Europe, while in Taiwan, the current  Only a few soft circuit board capable of manufacturing RFID tags using this technology. Winding technology is only available  125K and the manufacture of RFID tags 13.56M bandwidth, can not be used manufacture UHF  Bandwidth of the RFID tag. Printing and etching techniques can be used in mass production were 13.5  6M, UHF bandwidth, but the print quality and durability than the difference of etching a shorter period. General Printing  The RFID tag and durable life span of two to three years. But the etching of the RFID tag and durable life span of more than ten years.



Case in accordance with U.S. passports (e-passport) requirements, the tag of durable years  Limited to the basic requirements for more than ten years, must be etching technology. The following brief winding, printing  Two kinds of technical features and differences. adjustable window screens

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  1, India  Antenna structure and characteristics of brush



RFID tags (also known as non-contact IC card)  With contactless IC cards and other card products, a significant difference is that includes a chip containing the antenna and the  The INLAY level. The formation of different manufacturing methods INLAY different characteristics of the manufacturing technology. Different  Manufacturing technology also affect the structural design of RFID tags. On both sides with a INLAY  Printing layer and the protective film that is formed with a RFID tag.



And around  Antenna compared to printed antenna has the following advantages:



(1) Printed  Antenna can be more accurate adjustment of electrical performance parameters, the best performance of the card. RFID tags  Design of electrical performance parameters is important, it directly affects the distance of RFID tag reader  Reader adaptability and job stability. RF  ID tag of the main technical electrical properties of the main parameters are: resonance frequency, Q value and impedance.  In order to achieve optimal performance of all of the RFID tag manufacturing techniques can be used to change the antenna turns,  Size and thickness of the antenna wire method to get. But the printed antenna technology that, you can pass  Through local changes in line width, changing the thickness of the chip such as fine-tune to the desired target. RF  Resonant frequency ID tags, Q value and impedance can be used impedance analysis or network analyzer measured.



(2) Printed Antenna coil shape can be arbitrarily changed to suit  Users surface processing requirements. As a multi-purpose use of RFID cards, and various personalized to  Demand more and more, will be RFID tags and card body surface there are the various constraints, such as Braille playing, sensitive  Graphics. Printed antenna INLAY upon request to facilitate change into any shape, even non-regulation  The curve to meet customer requirements without compromising any performance.



 (3) manufacture of printed antenna can use a variety of kaki materials, such structure according to user requirements  Materials with different cards, in addition to PVC, it can also use the PET-G, PET, ABS, PC and paper-based materials. If the use of winding  Technology, it is difficult to produce with a PC and other materials to adapt to harsh environmental conditions of the RFID tag.



(4) manufacture of printed antennas for various chip manufacturers to provide  Module. With RFID tags  Widely used, more and more IC chip manufacturers are adding to the production team of RFID chip modules  . Lack of uniform standards, electrical performance parameters are also different, the structure of the printed antenna INLAY  Flexibility, each with a variety of different chips and modules in different packages to match in order to reach  To the best performance.



2, antenna printing  Technology Antenna printed  Brush is an important processing procedure.



Antenna  Printing technology and the same general screen printing technology. First of all, according to the designed shape of the antenna plate. Print  Mesh brush according to actual needs in the 100-257 head / & Jia? Urinate Man S turbulence? Difficult lemon?  Sub-critical. As the ink is the conductor. Main components of ink such as silver and aluminum metal. To use those  Low [[resistance], the value is high and the ink charge.  Coil resistance after the printing is generally between 2-25 .



According to real  International technology needs, using single or double-sided printed antennas, get the required inductance. To obtain  High quality antenna, but also outside in many subtle improvements, such as ink selection, ink reconciled  Pressure on the size, mesh selection, etc., printing plate making and printing ink drying and so on. These require long-term  Actual work experience accumulates. Compared with the winding and etched antenna, printed antenna technology, the most striking feature  Is less investment and higher efficiency.



3, the chip module  Block with the antenna connection between the technology



Connection  Refers to the chip module and antenna connections between all the different antennas is a key manufacturing technology in  Link. Printed antennas and modules generally use conductive glue or direct lamination method. Print  Antenna overlap area is generally greater than the size of the module connector to ensure the reliability of the connection, plus  When the lamination temperature and pressure, makes the module wire terminal connection block with the antenna tower melt into one. Such connections  The advantage of high maneuverability and performance technology and high reliability.



Wound  Antenna is usually connected by welding module. Such technology in the welding solid, Antennas and Hard  Module location is accurate, and better control of welding current circumstances, can ensure a better connection. But  Due to factors controlled more prone to Weld, and leave welding and welding defects such as partial. Another such connection method  One advantage is to use small-size modules, such as Mifare1, FCP2 module side  Then to connect, without reducing productivity and increasing costs. With such a small package modules, which can make  For thickness? 0.5mm of RFID tags, but no trace of the surface. RFID tag manufacturing sector now has a chip (Di  e) fit with the printed antenna technology, and is widely used in the production of smart labels.