LoRa 868 MHz integration
Long range, tiny power budget, and a link that lives or dies on the ground plane under the feed line.
Fit
When this is the right choice
Choose it when
- You need kilometers of range on a battery that lasts years
- Data volume is small — telemetry, sensor readings, status
- Cellular coverage or cost rules out an LTE module
- The asset is remote enough that a site visit costs more than the device
Look elsewhere when
- You need bandwidth — LoRa is not a data pipe
- You need low latency or high message rates; duty-cycle limits will bite
- Firmware updates over the air are a requirement
Engineering
What’s actually hard about it
The parts that decide whether it works on the first spin, and the parts that cost a respin when they are wrong.
50 Ω is a stack-up promise
A feed line is only 50 Ω if the stack-up supports it and the fabricator holds it. Assumed impedance is not controlled impedance.
Ground plane and keep-outs
The antenna needs the ground plane its datasheet assumed, and keep-outs respected on every layer — not just the top.
Duty cycle and band planning
EU sub-GHz rules constrain transmit time and power. It shapes the protocol, which shapes the product.
Sleep current dominates
A node that transmits for a second a day is a low-power design problem, not a radio problem.
What we have built on it
LoRa 868 MHz telemetry using Würth Daphnis-I, integrated alongside GNSS and cellular in shared-enclosure designs where co-existence had to be planned rather than discovered.
Relevant services: RF & wireless Power & battery
Got a board to design — or one that won’t boot?
You talk to the engineer who would do the work. Reply within one business day, and we’ll sign your NDA before you go into detail.