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Metal sheet versus Antenova SMD: most robust solution for IoT?
We are building a new version of our IoT gateway,
previous version used a pcb trace antenna for 868MHz and external GSM antenna.
Our pcb is  82mm x 99mm, plastic housing.

For the new device we want all antenna's fixed to the pcb (no external antennae).
We were offered a metal sheet antenna for 868MHz that claims to offer
good RX/TX performance but is also very easy on external influences of where the system
is mounted (close to wall, vertical/horizontal).

Antenova claims to have a SMD solution that is robust (little influence of device surroundings),
but how does this compare to metal sheets (e.g. ProANT onboard 868 )

And what type Antenova would provide best performance: Velox ISM?

As for GSM, we have a LTE-M1 SIM7000E, what Antenova SMD antenna will offer
best perfomance?
Tri-Band (800,900,1800) FDD-LTE B3/B8/B20.
GPRS/EDGE 900/1800Mhz (EGSM900, DCS1800)

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1 Answer

answered by
edited by
My favuritefor cellular is Lucida
Your request is for band 3, 8 and 20. If this is enough, then Calvus is maybe nicer
As less bands the antenna has to support as better is often the return loss. Just compare the two data sheets.

For 868 MHz you should use a 90 degree angle for the antenna to get a resonable antenna isolation. My recommendation is to develop 2 empty PCBs with antennas and battery in the final enclosure, to check return loss and to mesur the antenna isolation.

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