In order to save development and approval costs, the antenna, frequency bands, ground plane size and housing should be carefully designed at the beginning of development. If the company lacks in-house experience with radio, antennas and worldwide approval, we recommend consulting an external consultant. The following text is intended to make you think. I use […]
The simulation is taken from my IoT / M2M Cookbook. About 30 % of the book is about the integration of antennas into an enclosure. The antenna structure is explained in detail in the book and can be easily reproduced. The green to yellow marked area shows the radiated power from 0 dBi to 1.64 […]
If an RF signal is transmitted to an antenna, a part of the signal will be reflected. The return loss in the antenna data sheet indicates how much energy is reflected by the antenna. For mobile radio antennas, for LTE Cat-NB1, GSM, UMTS or LTE, a return loss of -6 dB at the band ends […]
The upper left graph illustrates the measurement of a filter with two ports at the Vector Network Analyser (VNA). Port 1 is feeding the device under test and is measuring the reflection. Port 2 is measuring the received energy. The lower right graph is showing a typical return loss measurement of an antenna. Has this […]
To explain the principle of operation of a VNA, I use an optical lens for comparison. Light arriving at the lens is partly reflected. However, a large part of the light is directed through it. The part of the light that is reflected and the part that is transmitted can be measured. A VNA measures […]
Parameters of antennas In addition to the mechanical dimensions and the type of connection, data sheets for antennas specify various electrical and physical parameters. 1. Antenna gain The antenna gain is a relative quantity that refers to a reference antenna. The reference value is the receiving field strength of the selected antenna in receiving direction […]
The 4 cent antenna works perfectly. Two coins with a value of 2 Euro Cent at the end of a coaxial cable form a good antenna. We tried the same with coins valued at 1 cent and 5 cents. There is always an antenna. The 2 x 2 Cent antenna for 2400 MHz is not […]
This is an example of a typical design process with the various steps leading to a ready-to-use wireless IoT product. Step 1 – Read the IoT/M2M Cookbook The IoT / M2M Cookbook is intended to help developers of wireless IoT / M2M devices to save some time and perhaps to provide some inspiring ideas to […]
akorIoT Micro & Nano was world’s first NB-IoT adapter with the freedom to select other cellular radios out of a range of modules without a SIM lock. You can also select any MCU kit with an Arduino compatible R3 or Nano expansion slot. “akor” is the Proto-Celtic word for “open” akorIoT was the world’s first […]
Internal knowledge about integrated antennas If you lack knowledge about integrated antennas, then we would recommend that you use an external consultant with experience in antennas who can advise you impartially on antenna selection. In the context of my work as a Sales Director, this basic consulting can usually be done free of charge. A […]