After a year of research we are happy to announce that the first part of the Dingo technology design is finished. The final measurements exceeded our wildest expectations! These measurements show that we can analyze the snow layers and the snow conditions.
The data results show that our antenna design is broad-band with a flat impedance and that most of the antenna power is radiated through it. When integrated with our sensor the results achieved are even better. The figure shows an example of two antenna parameters measured with a high accuracy Rohde & Schwarz Vector Network Analyzer of the antenna.
For investors: a more detailed report is available on request.
Figure: All values are smoothed to reduce noise caused by the lab-equipment/environment and shows the antenna response between 2Ghz and 11Ghz. The blue curve shows the values from the antenna in air and the orange curve the antenna value inside our product. The results for the antenna in air are similar to the simulation results we performed when optimizing the antenna design.
The “golden” standard for a good transmitting antenna describes a S11 antenna parameter of below -10dB magnitude. In the upper diagram it is clearly seen, that our antenna inside our Dingo product has just that and that the built-in antenna has improved signal quality compared to the antenna on its own.
The real part of the antenna impedance in the middle diagram should be around 50 Ohm and the imaginary-value should lie around 0 Ohm. Also for the impedance the original antenna quality (blue line) is improved when the antenna is embedded inside the Dingo product (orange line).