Workshop: Antenna tuning for your LoRaWAN device
summary
Workshop shows hands-on antenna tuning for LoRaWAN devices using a low-cost NanoVNA and UFL feed, with measured S11 tuning rather than theory. Examples: a printed miniature inverted‑F tuned from ~849 MHz to ~900–925 MHz by trimming (bandwidth ~30–35 MHz) and a three‑element miniature CP antenna for Lacuna space links giving a double dip around 865 MHz, sensitive to casing and hand proximity. Methods include solder‑jumpers/zero‑ohm links, cutting traces, and simple polystyrene supports; reported efficiency ~−1.2 dB (~75%).
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chapters (19)
- 0:00Intro
- 0:44Outline
- 1:26Antenna performance indicator
- 3:16Antenna key parameters
- 7:52Vector Network Analyzer: calibration
- 12:09Monopole Antenna
- 12:56Inverted L Antenna
- 14:24IFA: Inverted F Antenna
- 15:04UCA Antenna layout
- 16:55UCA Antenna tuned for EU band
- 17:12Antenna design
- 17:46How to connect my antenna
- 19:10UCA Antenna: effect of environment
- 20:43UCA Antenna tuning : Freg. Bandwidth
- 21:16UCA Antenna tuning to US band
- 21:38Antenna tuning with casing
- 22:02Tri-fillar antenna Radiating element
- 24:46Tri-fillar antenna tuning
- 26:08Conclusion and Perspectives
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