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GSM / NB-IoT PIFA antennas that fly

GSM / NB-IoT PIFA antennas that fly

GSM / NB-IoT PIFA antennas that fly As any antenna designer or an informed person who has read the IoT/M2M Cookbook knows, metal and antennas do not play well together. Many times, we are contacted by frustrated designers who find that the antennas they are using...
GNSS Antennas and Recycling

GNSS Antennas and Recycling

GNSS Antennas and Recycling DIY GNSS (GPS/Galileo/Glonass/Beidou) Antenna Everybody talks about protecting the environment and recycling. The nail antenna from the land of poets and thinkers (Germany) follows this trend. We’ve hit the nail on the head with this...
Certifying your IoT device

Certifying your IoT device

Certifying your IoT device The CE Radio Equipment Directive 2014/53/EU (RED) certification only applies to the radio module and is not transferred to the complete circuit board with the enclosure.  You will have to test again, but only a subset of the tests...
NB-IoT throughput vs antenna gain

NB-IoT throughput vs antenna gain

NB-IoT throughput V antenna gain Because a picture is worth a thousand words, here is the NB-IoT throughput table in a graph. With a 144 dB link budget (all the power gains and losses from transmitter to receiver), we will achieve a speed of 21 kbps. If the link...
Does NB-IOT work underground?

Does NB-IOT work underground?

Does NB-IoT work underground? Shallow and deep indoor penetration with LPWAN is yesterday’s news. The new record for signal penetration through walls and floors was achieved in Munich on August 10, 2018 with NB-IoT. NB-IoT signal strength in the Munich subway Munich...
The Journey to develop the Gillette order button

The Journey to develop the Gillette order button

The Journey to develop the Gillette order button Introduction In 2016, a creative team in Frankfurt had the idea of developing an IoT push button for ordering goods via a cellular module.  In principle, something similar to the Amazon Dash button, except using a...
Gillette Order Button versus Amazon Dash

Gillette Order Button versus Amazon Dash

Gillette Order Button versus Amazon Dash Button What is the main difference between the order button concepts? Cellular antenna design – oven-ready in the IoT/M2M Cookbook The Amazon button is based on Wi-Fi and will run when connected to the home Wi-Fi network....
GNSS Test PCB

GNSS Test PCB

GNSS antenna test PCB made by the akorIoT team Last week I got a request to support a small GPS tracker. The request is not new to me. It reaches me in several times per year. However, it makes no sense to reinvent the wheel again and again. To minimise the effort for...
NB-IoT and band 70 – What is your view?

NB-IoT and band 70 – What is your view?

NB-IoT and band 70 – What is your view? RF engineers already know that signal propagation characteristics vary according to frequency. In simple terms, signals carried at lower frequencies travel further. Radio wave and wavelength – image credit Harald Naumann...