Overview
The TI18 “Butterfly” 3.2dBi 868 MHz LoRa Antenna is a high performance 868MHz ISM band dipole omni-directional terminal antenna engineered for reliable Meshtastic or LoRa/LoRaWAN connectivity. The hinged SMA male connector lets you quickly set the antenna angle to suit real installations. USP: Butterfly radiation pattern—in many deployments the gateway/device antenna and the remote node antenna are not on the same horizontal level; instead of a usual dipole “dumbbell” E-plane shape, TI18 is designed with a butterfly-shaped radiation pattern so the best radiation direction is more pointed toward the remote user/device, improving practical coverage where vertical offset is common (e.g., multi-level urban environments).
Key Features
- Tuned for 868–870MHz ISM band (LoRa/LoRaWAN 868MHz)
- Butterfly-shaped radiation pattern to better target remote devices when antennas are at different heights
- High efficiency: 92% (bend) / 93% (straight)
- Peak gain: 3.2dBi (bend or straight)
- Hinged SMA male connector for fast, tool-free orientation
- 50Ω impedance, VSWR < 1.9:1
- Omni-directional pattern, linear polarization
- TPU radome for durable everyday use
User applications
- Meshtastic nodes for personal, team, and off-grid messaging networks
- Meshtastic routers/repeaters for extending coverage in multi-level buildings, valleys, and wooded terrain
- Off-grid teams and expeditions needing dependable LoRa links for coordination and tracking
- Civil defence and emergency preparedness groups building resilient local LoRa mesh coverage
- Professional field deployments where robust sub-GHz comms and fast, reliable antenna alignment matter
Specs
| Product name | TI18 “Butterfly” 3.2dBi 868 MHz LoRa Antenna |
|---|---|
| Manufacturer Part Number | TI.18.3113 |
| Frequency | 868–870MHz |
| Peak Gain | 3.2dBi (bend/straight) |
| Average Gain | -0.3dBi (bend/straight) |
| Efficiency | 92% (bend), 93% (straight) |
| Impedance | 50Ω |
| VSWR | < 1.9:1 |
| Radiation / Polarization | Omni-directional / Linear |
| Input Power | 10W |
| Connector | SMA Male (hinged) |
| Length | 389 ± 5mm [15.3 ± 0.2in] |
| Diameter | 13 ± 0.5mm [0.51 ± 0.02in] |
| Material | TPU radome |
| Operating temperature | -40°C to +85°C [-40°F to +185°F] |
| Humidity | Non-condensing, 65°C 95% RH |
Why you’ll want this antenna
- Butterfly pattern advantage: helps aim stronger practical coverage toward remote nodes when antennas aren’t on the same level
- High efficiency (92–93%) for stronger real-world links and better use of your radio’s power budget
- 3.2dBi peak gain in both bend and straight positions
- Hinged SMA(M) makes alignment easy inside cabinets, on gateways, and on device housings
- Good match (VSWR < 1.9:1) helps reduce reflected power
What’s included (In the Box)
- 1× TI18 “Butterfly” 3.2dBi 868 MHz LoRa Antenna, hinged SMA(M)
Performance notes / setup guidance
- Use the hinge to set the antenna angle that best points coverage toward your remote nodes—especially useful when routers and sensors are installed at different heights.
- For best results, keep the radiator clear of nearby metal surfaces and wiring; small placement changes can affect RSSI/SNR and packet success rate.
- If mounting on an enclosure or gateway, support the SMA connector mechanically to avoid strain in mobile/vibration-prone installs.
- Validate final placement with packet delivery plus SNR/RSSI to confirm you’re benefiting from the intended radiation behavior in your environment.
Choose the TI18 “Butterfly” 3.2dBi 868 MHz LoRa Antenna for a fast, datasheet-backed 868MHz upgrade that’s designed for real deployments where device heights rarely match.






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