The AMA-868 is a precision-tuned antenna designed specifically for LoRa, LoRaWAN, and Meshtastic nodes operating in the 868 MHz ISM band. As a ½-wave (sleeve) dipole, it delivers excellent performance without requiring a ground plane, making it ideal for compact or mobile IoT deployments.

Unlike many standard 868 MHz antennas that detune easily when placed near the body or other materials, the AMA-868 is engineered to maintain a low VSWR even in imperfect environments. This makes it highly effective in scenarios where traditional antennas struggle.

Optimized for Real-World Conditions

The AMA-868 excels in challenging installation environments, such as:

• Wearable Meshtastic nodes, where the antenna is positioned close to the user’s body

• Indoor fixed nodes, where the antenna must operate near walls

• Smart-home or energy-efficient buildings, where modern low-emissivity (Low-E) windows and insulation materials often degrade RF performance

Thanks to its robust tuning and half-wave design, the AMA-868 maintains reliable range, even when placed close to lossy surfaces or conductive structures.

AMA-868 Specifications

• Frequency: 868 MHz (860-920 MHz)
• Type: Sleeve dipole
• Gain: 2.15 dBi
• Impedance: 50 Ω
• VSWR: ≤ 2.0
• Connector: SMA Male
• Length: 19,5 cm
• Weight: 17 g