The design of an antenna for NFC tags and dynamic NFC tags consists of designing a well-suited antenna loop placed either on or within the support material of the tag label or on the application pc-board. The antenna dimensions and parameters depend on the application requirements.
This mode is optional.
Nfc reader antenna design. As of very recently there is a new NXP antenna design tool which includes antenna design guidance for passive tagsconnected tags and reader antennas vs. For demonstration purposes the MSP430F5529 LaunchPad development kit with TRF7970A BoosterPack plug-in module. Because the antenna coil itself is a low impedance device in order to maximize the energy sent by NFC IC to the antenna a matching circuit must be added between the antenna and NFC IC.
How to design a 1356 MHz customized antenna for ST25 NFC RFID Tags Introduction The ST25 NFC near field communication and RFID radio frequency identification tags extract their power from the reader field. NFC antenna tuning naming convention Asymmetric and symmetric antenna tuning Asymmetric antenna design eg. Design Tools Antenna Design Matching tool Calculates matching components Includes simulation program Available on ST25R3911B landing page 11.
The antenna used in NFC devices such as tags and readers will have loop structure. Hence we are talking about fitting an antenna into a volume where the maximum linear dimension is about 05 or less of a wavelength. To help you get started NXP has launched a new NFC Antenna Design Tool.
The design of an antenna for dynamic NFC tag is based on the placement of a loop on the application PCB. Designing the right antenna for your application is crucial to get optimum read range and reliability with NFC in your products. Figure 3 shows these alternative connection topologies.
As co-inventor of NFC technology we are committed to simplifying the NFC reader design and reducing time to market. Its impedance matches the devices internal tuning capacitance value C tuning to create a circuit resonating at f tuning 1356 MHz. Its impedance matches the device internal tuning capacitance value.
NFC Reader Antenna Design and Considerations for Automotive Applications Abstract. 31 Reader output power During the NFCRFID reader design process a lot of different requirements have to be considered a key one is the output power. CLRC663 Automatically limits the current and field strength under loadingdetuning Not optimum transfer function Symmetric antenna design new for eg.
So the challenge in NFC antenna design is to obtain a radiating structure when the NFC antenna area may be limited to 3×1 or 7 cm 25 cm. The energy loss caused. A good antenna design from the start also helps you to reduce time-to-market.
Antenna or in series between the matching network and the antenna. Antenna design is an essential part of NFC Readers implementation. NFC reader antenna matching Step by step approach to properly design an NFC reader antenna.
NFC Antenna working principles Magnetic field principles inductive coupling mutual inductance coupling coefficient optimum antenna size and Q-factor. In the CM the NFC device behaves in principle like a PICC as defined in 2. 4242019 25426 PM.
You can enter values in the Antenna Coil Parameter area to define the outer dimension of the antenna such as length width track thickness etc. The NFC antenna design online training series helps you to quickly get started with NFC antenna design and learn key design aspects that you need to consider when selecting the right antenna optimizing and debugging and testing to get the best-matched antenna for your. It operates at 1356 MHz frequency.
The antenna connection is the interface from the RF Module to the outside world. TRF7970A NFC Reader Antenna Multiplexing Kostas Aslanidis and Vishwash Needhan Gunasegaran ABSTRACT This application report describes the implementation of multiple reader antennas with a single TRF7970A NFC transceiver IC. There are two pins connected to the external antenna.
ANT1 and ANT2 pin 2 and 3. The device is compliant with the NFC Tag Type 4B T4BT platform. PN5180 Provides more power transfer and better transfer function.
Sesion 2. Learn how NXP is making it easier for designers to get one step ahead in their NFC products with our new NFC Antenna Design Tool. NFC antenna is widely used in NFC compliant mobiles NFC payment readers wallets ID scanners data loggers ticketing systems and more.
In the card emulation mode CM the NFC device can be used in existing NFC reader infrastructure. The tag and reader antennas are inductances mutually coupled by the magnetic field similarly to a voltage transformer see Figure 1. We make it easy to find the right product for your particular application and we supply the hardware software and design tools that help you develop firmware tune your antenna manage protocols and differentiate your solution.
The tool has a variety of parameters which you can modify to simulate your desired antenna design principle. PN5190 antenna design guide 2 NFC reader antenna design For the NFC operation three different communication modes are specified in 4. A complete example is calculated to help start the antenna design.
Antenna design plays a crucial role in getting the optimum read range and reliability with NFC in your products. The application note will provide the required understanding to design application specific antennas and dimensioning RF parts to achieve the best performance for a communication according. This paper presents antenna design and packaging consideration for near field communication NFC system that is being used in automotive security systems and more specifically to an NFC reader for obtaining access to and controlling activation of a.
It mentions NFC antenna testing and vendorsmanufacturers. It describes loop antenna design used as RFID or NFC Antenna. Keywords Antenna tuning Measurement PN512 CLRC663 NFC and Reader IC MiniVNA Abstract This application note gives a guideline how to measure and tunematch a NFC and Reader IC antenna with the MiniVNA network analyzer tool.
This application note is intended to give a practical guide to design and dimension antennas and RF parts for contactless reader as well as NFC devices. Intended audience This document is intented for application and system engineers. This antenna design guide is intended to be used for determination of correct parameters for rectangular and square PCB near-field communication NFC antenna designs for Infineons NLM0011NLM0010.
Design of antenna matching circuit. The basic equation of the tuning. Just reader antennas with pre-loaded parameters for most NXP IC offerings.