This product has been discontinued. It can be replaced by: HFRA 5164 – Circular Loop Antenna
Datasheet HFRA 1356HFRA 1356 – Passive TX-Loop Antenna
The HFRA 1356 is a passive loop antenna which is matched to a resonance frequency of 13.56 MHz with typ. 350 kHz bandwidth (-3dB).
The purpose of the antenna is to produce defined magnetic fields at 13.56 MHz efficiently, i.e. to test near field communication devices (NFC) or RFID equipment.
NFC issues are described in the standards ISO 18092, ECMA 340, ETSI TS 102 190.
| Nominal frequency: | 13.56 MHz |
| Monitor voltage for H = 1 A/m: | 32 mV / 90 dBµV |
| Maximum magnetic field strength: | 25 A/m, 1 min. |
| Max. monitor voltage : | 800 mV / 118 dBµV, 1 min. |
| Nominal magnetic field strength | 20 A/m continuous |
| Impedance at „Input“ and „Monitor“: | 50 Ω |
| VSWR at „Input“: | < 2 |
| Loop diameter: | 250 mm |
| Number of turns: | 2 |
| Terminals: | BNC |
| Max. power dissipation at “Input”: | 16 W / 42 dBm |
| -3 dB bandwidth: | typ. 350 kHz |
| Mount (camera thread): | 3/8"UNC |
| Material: | brass, nickel plated |
| Weight: | 0.4 kg |