The DUT is a GPS loop antenna planned for a small GSM / GPS tracker of an estimated 40 mm x 20 mm. The goal of this test is to detect the bandwidth of the GPS antenna and the interference of meat placed close to the final GPS tracker. Check of the ingredients of world´s […]
I have an (IoT) dream – Tesla in front of Burger King I took this photo on my business trip on Monday to an electric vehicle charge station. On the way back to my home I got tried and decided to stop, take a nap and to get some coffee. I left the highway and […]
Today we tell you the ingredients you will need in order to reproduce the world’s first IoT sandwich. The sandwich is planned as a starter. We will show you how to make the main course and the dessert later. Ingredients for the IoT sandwich For the PCBs 9 different PCB shapes (3 different cut-out zones […]
The device under test is a PCB of size of 40 mm x 20 mm with GNSS antenna for a small tracking device. Small mobile GSM / GPS trackers are common for pets, humans or assets. Chip antennas operate as loop antennas which are magnetic antennas and are usually unaffected by being near to the […]
For a few bucks you can get such a Radiation Measurement System (RMS) to measure Radiation Patterns and Total Radiated Power (TRP) from a 3-axis rotation of your wireless IoT / M2M application. While Radiation Patterns and Total Radiated Power (TRP) is usually measured in an anechoic chamber to avoid reflections to affect the measurement, […]
Our third patient has a popular name. The manufacturers have called it the magnetic mount antenna. Further details about the third mobile antenna patient are given in the test below. Here are the medical records of the cellular magnetic mount antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: […]
Our second patient has a name as well. The manufacturers have called it the cellular stubby antenna. Further details about the second mobile antenna patient are given in the test below. Here are the medical records of the cellular stubby antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: […]
Our patient has a name. The manufacturers have called it the Penta-band PCB antenna. More details about the first mobile antenna patient are revealed in the test below. Here are the medical records of the Penta-band PCB antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: 824 – 960 […]
As many already know, I am interested in antennas. My great interest is integrated antennas. Such antennas can be found in gateways for electricity meters, but also in portable point of sale systems. Even permanently installed telematics devices use integrated antennas. For many developers integrated antenna designs require a magician’s skills. Do you mind if […]
The typical faults marked with XXI and XXII in the other graphs are not visible on first view. If you have a closer look you can detect the peak at 1500 MHz range. The bandwidth of this antenna covers all the four GSM bands, UMTS 2100 and even the 2400 MHz band for Wi-Fi, Bluetooth […]
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