quantboy
Newbie level 5
I have a signal of 315mhz running over a 24VAC/60hz power buss.
I need to "pull out" or pass the 315mhz, so it can be used, but not the 60hz.
I was going to do something like the below circuit:
Plan was two 0.022uf hgh voltage caps to filter out most of 60hz (high pass filter)
Then have a band pass tuned RC circuit as a bandpass filter for around 315mhz.
The plan was to use T2 and X2, combined with the 1000pH cap to resonate at the carrier freq (315mhz).
My questions are:
what type of transformer should I make/buy for T2...
how many Henrys should X2 be...
how do I calculate the RLC values for the bandpass filter at 315mhz and what values should I use?
I was hoping to wrap my own air-core inductors -- but I'm just not sure where to start with the transformer, inductor and capacitor values.
Thanks in advance,
Ted
I need to "pull out" or pass the 315mhz, so it can be used, but not the 60hz.
I was going to do something like the below circuit:
Plan was two 0.022uf hgh voltage caps to filter out most of 60hz (high pass filter)
Then have a band pass tuned RC circuit as a bandpass filter for around 315mhz.
The plan was to use T2 and X2, combined with the 1000pH cap to resonate at the carrier freq (315mhz).
My questions are:
what type of transformer should I make/buy for T2...
how many Henrys should X2 be...
how do I calculate the RLC values for the bandpass filter at 315mhz and what values should I use?
I was hoping to wrap my own air-core inductors -- but I'm just not sure where to start with the transformer, inductor and capacitor values.
Thanks in advance,
Ted