Hello,
I'm using the Smith chart on a VNA to determine the matching circuit for my PCB (an RF switch (LoRa, WiFi and GNSS) and an antenna (NN02-224)). I found the matching networks for GNSS and LoRa using theory, and the VNA shows good results.
However, for WiFi, I couldn't get a good match...
I'm working on a project which involves some old conference interpreter consoles from around 2008. They were designed to work with seperate distributor boxes into which you plug a floor signal from the venue PA system and it passes that to all the consoles. In return, the consoles pass their...
Hi
I am in search of commercially available impedance matching transfer with following characteristics:
1. Input Impedance = 50 ohm, Output Impedance =25 ohm
2. Operating Frequency Range: 400 -450 KHz
3. Signal type : Pulsed CW/Linear or Hyperbolic Frequency Modulated
4. Power Handling...
Hi,
I have a 40W audio amplifier which is designed to drive speakers down to 4 ohms. I also have a power transformer which obviously behaves nothing like a speaker. If I hook the amp directly to the transformer, it sort of works, but will trip the protection circuits much of the time.
If I add...