On 18/10/2019 19:50, Queequeg wrote:
> Wow.
>
> https://www.allaboutcircuits.com/news/teardown-tuesd
ay-hb100-doppler-radar-module/
>
> "The PCB, itself, is a major component. Not only for the patch antennas
> but also several RF filters, the local oscillator, and the mixer are all
> largely made from peculiarly-shaped PCB tracks.
>
> Apart from the PCB, there are only five "components" on the board.
>
> Five passive components to implement a Doppler radar module. C'mon. You
> have to be impressed by that!"
>


Jak bylem dzieciakem to ręcznie malowałem uzwojenia na PCB w nadajnikach
FM. Dzisiaj to jest voodoo (wtedy juz bylo ale nie w PL)

Współczesny analizator widma + VNA
https://youtu.be/ToVJTKCyIU8?t=459