Introduction：
The HFRA 1356 is a magnetic field transmitting loop antenna manufactured by Schwarzbeck (Germany) and distributed by EUTTEST. This antenna is a passive loop antenna that matches the resonant frequency of 13.56 MHz and effectively generates a 13.56 MHz magnetic field and is tested against near-field communication devices, NFC or RFID, which are shielded from electric fields.
Meets criteria:
The HFRA1356 meets the test requirements for NFC issues as specified in standards ISO 18092, ECMA 340, and ETSI TS 102 190. NFC is used for data communications over distances of a few centimeters, and the generator is typically rated at about 16 dBm output power, which is sufficient to generate a field strength of 1 A/m. With a generator output power of 25 watts, this antenna can achieve a field strength of 25 A/m in a short period of time.
Technical parameters：
| Ring Antenna Model | HFRA 1356 |
| manufacturer | Schwarzbeck |
| agent | Euttest |
| Ring antenna name | Passive magnetic field loop antenna - launch |
| nominal frequency | 13.56MHz |
| impedance | 50Ω |
| Voltage required for 1A/m | 32 mV / 90 dBμV |
| Maximum generated field strength | 25 A/m, 1 min |
| nominal field strength | 20 A/m continuous |
| standing wave ratio (physics) | <2 |
| Maximum monitoring voltage | 800 mV / 118 dBμV, 1 min |
| -3dB bandwidth | 370kHz |
| coil (in electric motor or transformer) | 2 |
| ring diameter | 250mm |
| terminal (electrical engineering) | BNC |
| support screw | 3/8″ UNC |
| weight | 0.4kg |
Graph of related technical parameters：
Magnetic Field Strength at 32mV = 90dBμV power input
Contact EUTTEST for other distance and input power related magnetic field strength data.
