There is no reference for antennas on extremely small boards in small packages. Cellular chip antennas of different manufacturers all have a reference ground plane of approx. 45 mm +/- 10 mm x 100 mm +/- 20 mm. Nobody can cheat the physics. The length of the PCB influences the return loss. This is documented […]
The oldest delivery service is certainly Santa Claus. He has been delivering punctually to children for generations. Santa Claus lives in his factory at the North Pole. Santa’s helpers are the gnomes. They make gifts for the children. At Christmas Santa Claus packs all the presents on his sled. As we now, reindeers pull the […]
The clear winners at Wireless IoT in the WAN area are the 3GPP technologies. With NB-IoT, LTE-M and the well-established cellular techniques, 3GPP covers most applications. On top of that, cellular operators have the better and denser network. There are 76000 cellular base stations in Germany. They are opposed by 0 LoRaWAN and 2500 announced […]
The comparison of the range of a LoRa module with 2400 MHz, Bluetooth long range modules and LoRa 868 MHz modules shows that BLE long range is not a real long range. LoRa 2400 MHz with SF12 is not much worse than LoRa 868 MHz. LoRa 2400 MHz is not subject to any duty cycle. […]
Icarus wanted to go high up unlicensed. If you don’t follow the rules like Icarus, then the fall comes after the flight. Icarus melted the wings. Why do the unlicensed LPWA companies of all firms repeatedly report hot-air balloons or weather balloons with extreme ranges and fly towards the sky and the sun? Up there […]
In part one of the tests, we fled the summer heat into a Munich subway tunnel. We had already announced the test at the eye level of a small terrier, the larger German shepherd and the insde of a ladies’ handbag. As good engineers, my colleagues in Munich always seek the most extreme tests and […]
Light indoor, indoor penetration and deep indoor with LPWAN is yesterday’s news. The new record for the penetration through walls and floors was achieved in Munich on August 10, 2018 with NB-IoT. Due to the great heat in the office, our Munich team continued the NB-IoT tests in the Munich subway tunnels. With NB-IoT you […]
As the question about the costs and the procedure for the matching of antennas frequently occurs, we have described the process and explained it with some examples of projects. To estimate the costs, the answers to the following questions are necessary. Standard questions on antenna matching: Which radio modules were used? How many radio modules […]
SIM on chip or eSIM cards do the exact same job as a normal IoT SIM card. Neverthelesss, eSIM cards are permanently stored inside a device. An eSIM is usually attached by soldering to the PCB. eSIMs prevent people from tampering with the device or changing the device it sits in. This helps enhance the […]
15th. November 2018, Munich, Germany Time 17:00 – 18:00 Session/Workshop Speaker: Roger Denker, MegiQ BV Language: English Registration (soon): https://www.wireless-congress.com/home.html In 60 minutes you will learn how easy it is to use a PC-based Vector Network Analyser (VNA) made by MegiQ. Examples to be presented at the Antenna Tutorial Part 1 will include live measurements […]
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