Antennas are simple things but most likely it is the last item to think about when designing or using wirelessly connected products. A small amount of thought beforehand on what antenna type you should use and the compromises that that might bring will pay off later. We are often receive phone calls from people who need to sort out their antenna situation as its not going well……
Had a call from a customer the other day, saying a competitor’s cellular Yagi antenna was no good, even though they claim it is very high gain. As Siretta offer a number of good quality Yagi antennas, I thought this would be a sale opportunity. Asked few more questions only to find out he had installed his antenna facing the building. Explained Yagi antennas are good but not that good and he should really install his antenna in as clear a line of sight to the base station as possible to get a good result. A couple of days later he called back thanking me. It seems I can spot a good sales opportunity but not the sales.
Anyhow, the question of whether to use a Yagi or an omnidirectional antenna is a valid one.
We know the Industrial Internet of Things (IIoT) is rapidly evolving, low power / high processing power, and reducing price per connected device, all driving the advance. IIoT endpoints create the connection to real world sensors and actuators thereby creating a wealth of information to be available. Add cloud services to the mix and the wealth of information is made available online from anywhere. IIoT endpoints typically use Bluetooth/WiFi/Short range wireless to connect but what if your site is truly remote?