Which type of antenna is used in RFID reader?
It’s called this because the RF field travels along the length of the coaxial cable toward the two ends. The Harting Locfield antenna is a short range, high gain antenna that are very convenient because they are a coaxial cable and antenna in one form factor. This means they can be directly connected to an RFID reader.
What are two applications of RFID?
The most common RFID applications in hospitals are inventory tracking, control access, staff and patients tracking, to track tools and assets, tracking disposable consumables, tracking large/expensive equipment, laundry tracking, etc.
How to design an antenna for 1 meter RFID reader?
Question: How do i design an Antenna in such a way it has a read range of 5 – 6 feet (throughout the height of pillar) and having read distance up to 3 feet (distance where the tag is presented)? Here the read range is as important as the read distance. Considerations:
How big is a 125khz RFID reader?
The wavelength at 125khz is 2400 meters, a multiple of one quarter of that is approximately 29 (about 1 foot) centimeters, if you find it to be too large to be practical you can always halve that distance, another way would just be to increase actual RF transmit power and receive sensitivity possible by using op amp circuits.
How does FDX work on a RFID reader?
With FDX, the tag increases and decreases the resistance (shorts) across its internal coil to cause slight changes in the reader antenna voltage to communicate the 1’s and 0’s (load modulation). A tiny tag does not put a lot of load to an antenna with a weak magnetic field that is 1m away. Make sure the antenna is properly tuned.
Can a RFID reader generate a strong magnetic field?
Your reader does not appear to be powerful enough to generate a magnetic field that has sufficient strength. You need to consider a reader that can supply more current to the antenna or some way to boost it. Look for a “long range” reader (RFID industry term) for a better solution.