Hi everyone,
I am grad student doing some lab research and I need your help concerning a RF question - I'm sorry if the question seems basic to you, I have no experience in the field and couldn't find help anywhere else.
Basically, I am trying to deliver ~10W to a low-impedance load (1-2 Ohms), at 1 MHz. After conducting some research and getting help from this forum, I came up with a power generation + transmission system that seems to work: Signal generator + coax + specific RF power amp + coax + 50:3 Ohms transformer + load.
However, I am having trouble delivering the signal and power to my load, after the transformer. My load is a 3ft x 1ft plate, and I would like to create a voltage drop through it by connecting one side of the plate to the ground and the other side of the plate to the "+" side of the signal. My transformer is designed to have an output impedance that matches with this load, but somehow I can't get rid of reverse power because my transformer-to-plate connection setup is bad.
What I've been using for that connection is a BNC to Banana adapter at the output of the transformer, and then connect one banana wire to one side of the plate and the other to the other side. I am sure this setup is pretty bad in terms of undesired capacitance, impedance mismatch, and that it is why my power doesn't get delivered. However, I do not know what better solution is available out there.
If you have any idea or suggestion, please let me know, I'd really appreciate!
Many thanks,
Ruben