The device under test is a Flex PCB antenna ( 71 mm x 13 mm) with coaxial cable and U.FL connector. Here are the records of the cellular flex PCB antenna: Frequency bands: GSM 850/900 MHz, GSM 1800 / 1900 MHz, UMTS 2100 Frequency range: 824 – 960 MHz and 1710 – 2150 MHz VSWR […]
In Germany, we have at least three companies, who plan to roll out an LPWAN. Two of them are on LoRa the other is on SIGFOX. One of the LoRa operators is backed by a big utility company. However, right now a standard IoT system integrator will not get access to the public LoRa networks […]
This Wi-Fi module arrived yesterday. The complete package includes the Wi-Fi module, a USB connector and a Serial Peripheral Interface (SPI) to USB converter. The operating voltage is supplied via USB from the PC. After plugging the module into the USB port, a standard terminal software application was started on the PC. With the first […]
Android devices and pet trackers for life, not just for Christmas – original blog posted in Nov 2011 As Janis Joplin sang, “My friends all drive Porsches, I must make amends”. Two of my friends own an iPhone and they always buy the latest smartphones. I will “make amends” and skip buying a tablet for […]
Effect of the cut-out zone without copper under the antenna The device under test is a PCB of size 40 mm x 20 mm, again with a GNSS chip antenna designed for small tracking devices. Small mobile GSM/GPS trackers are common for pets, humans or assets. GNSS chip antennas operate as loop antennas which are […]
Are you able to find the mistakes in this GSM module antenna design? The manufacturer labelled it a GSM adapter for the Arduino platform. We have removed the brand name of the GSM module. Delivery notes There were no delivery notes or invoice inside or outside of the package. The customer was really lucky, that […]
Interference of temperature on GPS antenna resonant frequency The device under test is a PCB of size of 40 mm x 20 mm, again with a 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 […]
Today we tell you the ingredients you will need in order to reproduce the world’s first IoT potato to power a GLOBIO BLE Beacon. The potato is planned as a side dish. The starter I already explained. It was the world first´s IoT Sandwich listed here. We will show you how to make the main course […]
Q: I came across a blog of yours some years back. By chance are you still offering assistance with GPS related antenna solutions? If so, we are trying to find a replacement for a Sarantel helical antenna. We need to match or improve upon the performance of the Sarantel product. We are looking into Maxtena’s […]
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 […]
.
.Posts by email
.Posts by RSS
Email to Harald
Harald@Facebook
Harald@Google+
Harald@Linkedin
Harald´s website
IoT/M2M on Twitter