Would I be able to conveniently use a small coil of wire (with or without a ferrite etc. core) in parrallel with a capacitor to detect the strength of a radio transmission at a particular frequency, from a particular direction, if I had some kind of shielding behind it?
I was thinking of arranging say, four inductor coils on a pcb each with it's axis at 90 degrees to the others, with a 'reflector' of some kind in the middle
And, then parrallelling each coil up with a suitable capacitor to achieve a resonant frequency at the target value.
Then I could use some device to sample the AC voltage apparrent across each of the four capacitors, in order to determine which was the highest out of the four.
The highest of the four values would indicate which of the inductors was pointed at the strongest signal source?
If the pcb were laid horizontal I could determine which of North, South, East, West sent me the strongest signal?
I'm thinking around a 'where on the compass is the transmitter?' type device. Specifically I'm thinking of UK 4G frequencies i.e. 1800MHz and 800Mhz
I was thinking of arranging say, four inductor coils on a pcb each with it's axis at 90 degrees to the others, with a 'reflector' of some kind in the middle
And, then parrallelling each coil up with a suitable capacitor to achieve a resonant frequency at the target value.
Then I could use some device to sample the AC voltage apparrent across each of the four capacitors, in order to determine which was the highest out of the four.
The highest of the four values would indicate which of the inductors was pointed at the strongest signal source?
If the pcb were laid horizontal I could determine which of North, South, East, West sent me the strongest signal?
I'm thinking around a 'where on the compass is the transmitter?' type device. Specifically I'm thinking of UK 4G frequencies i.e. 1800MHz and 800Mhz
