Whether a professional or amateur, one of the first things we learn about propagation is that lower frequencies propagate better. Or propagation loss increases with frequency. In this post I will make the case that Free Space Path Loss really…
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Ultra-Wideband Antenna Lab Measurements
My Vivaldi Antenna was recently tested by Antenna Test Lab who offer an excellent professional antenna testing facility. Antenna Test Lab are able to provide customers with full 2D/3D antenna measurement using their anechoic antenna testing chamber.
Reconfigurable Ultra-Wideband Antenna Array Kit – part 1
My next project after successfully building my Ultra-Wideband Vivaldi antenna is to use it to create a UWB antenna array. I will assume that most readers are at least slightly familiar with the concept of an array, I will give…
Making an Ultra-Wideband Antenna – Part 3 (performance)
Update – this antenna was professionally measured at AntennaTetLab – results here Follow this link to see more info on the original creation of the Palm Tree Vivaldi Antenna developed by Dr. Alexandre at the Laboratory Maxwell in Brazil. Final…
Making an Ultra-Wideband Antenna – Part 2 (Introducing the Palm Tree Vivaldi Antenna)
The Vivaldi Antenna My chosen antenna design is a version of the Vivaldi antenna. The Vivaldi was named by fellow Brit Peter Gibson. It is believed that the name came out of Gibson’s love of classical music, and in may…
Making an Ultra-wideband Antenna – Part 1 (UWB Antenna Options)
Having backed the new LimeSDR mini crowdsupply campaign, I am expecting delivery of a highly capable software radio with the ability to receive and transmit at frequencies up to 3.8GHz. This is brilliant and the small size means that it can always…
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HexAndFlex 