NTAG 5 Boost
NXP Semiconductors
NTAG 5 Boost needs to be connected to an antenna to access NTAG 5 via NFC interface.
Application NoteNxp
Antenna Design Guide for NTAG 5 Boost
A technical guide for designing and matching antennas for NXP NTAG 5 Boost, focusing on active load modulation (ALM) for small antennas and metal-rich environments.
Overview
This application note provides comprehensive guidance for designing and matching antennas for the NXP NTAG 5 Boost family. The NTAG 5 Boost utilizes Active Load Modulation (ALM) to maintain performance in 'NFC inhospitable environments,' such as near metal or in space-constrained applications where passive NFC tags typically fail. The document details antenna theory including series and parallel equivalent circuits, Q-factor adjustment (targeting a value below 14), and size recommendations for antennas smaller than or equal to Class 6 (approx. 25mm). It outlines a step-by-step matching procedure using a capacitive voltage divider topology to protect the device's RX pins and includes instructions for using the NXP Antenna Design Hub and simulation tools to optimize inductance and resonance frequency.
Use Cases
- NFC integration in metal-rich environments such as keyboards
- Small form-factor NFC tag design (Class 6 and smaller)
- Industrial identification in space-constrained enclosures
- Designing antennas for high-performance active load modulation
Topics
NTAG 5 Boost
active load modulation
ALM
NFC antenna design
ISO/IEC 15693
NFC Forum Type 5 Tag
antenna matching
Q-factor optimization
metal environment NFC
Referenced Parts
NTAG 5 link
NXP Semiconductors
Depending on possible antenna sizes, NTAG 5 link/switch with passive load modulation (PLM) and NTAG 5 Boost with active load modulation (ALM) will be used.
NTAG 5 switch
NXP Semiconductors
Depending on possible antenna sizes, NTAG 5 link/switch with passive load modulation (PLM) and NTAG 5 Boost with active load modulation (ALM) will be used.
MCQ1V3216-R270-R
Cyntec
Recommended types are, for example, MCQ1V3216-R270-R, LQH2HNHR56K03L or similar
LQH2HNHR56K03L
Murata
Recommended types are, for example, MCQ1V3216-R270-R, LQH2HNHR56K03L or similar
| NTAG 5 Boost | NXP Semiconductors | NTAG 5 Boost needs to be connected to an antenna to access NTAG 5 via NFC interface. |
| NTAG 5 link | NXP Semiconductors | Depending on possible antenna sizes, NTAG 5 link/switch with passive load modulation (PLM) and NTAG 5 Boost with active load modulation (ALM) will be used. |
| NTAG 5 switch | NXP Semiconductors | Depending on possible antenna sizes, NTAG 5 link/switch with passive load modulation (PLM) and NTAG 5 Boost with active load modulation (ALM) will be used. |
| MCQ1V3216-R270-R | Cyntec | Recommended types are, for example, MCQ1V3216-R270-R, LQH2HNHR56K03L or similar |
| LQH2HNHR56K03L | Murata | Recommended types are, for example, MCQ1V3216-R270-R, LQH2HNHR56K03L or similar |