So, finally, the sensor now works (when the schematic reads 47Ohms, we should place 47 Ohms. Not 49 Ohms, because 2 Ohms, can do a lot, you know!). I also decided to use the most basic and simple loop and biquad antenna, after a few tests with wire thickness, seems that 1.5 is the one [...]
//Please don’t share on front page So I while investigating more antenna options and optimizations, am building an output prototype. First am experiencing with materials. I created a mesh of PVC sheet using the laser cutter. I like the texture and the feel and how it resembles am emf field volume, however I need to [...]
So, after testing the sensor, I decided to give up the idea of using lights and turn to a different medium. Ideally, if we have the frequency detected, then we can trigger different colors based on frequency range, but with the current readings of this sensor, we get numbers within a range, which we can [...]
So, now we know that in order to build the sensor we need an antenna and RF amplifier piece, but first we need to specify what bandwidths we are talking about, in order to specify our selection. I chose to go for apps from 500Mhz to 3~5 Ghz, given that that is what most of [...]
So, how does that work? Well, it is like we need to talk to the wave in order to interact with it, and the way how to grab its attention is the antenna. There is a relationship between antenna design and the bandwidth, so what works for GSM doens’t work for FM etc..and since we [...]
