High frequency high power alternating current

[axawire]

Hi,

When you have a high frequency high power alternating current, Can you use a regular wire to transmit the current or do you have to use a waveguide? Or some kind of combination?

Thanks.

 

[nbo10]

Whats your definition of "high frequency high power"? I would lookup waveguides in a book. Any decent EM book will have your answer.

 

[berkeman]

Waveguides must be at least a half-wavelength in cross-sectional dimension in order to be efficient. That is the main thing that defines whether you would use a waveguide or a coax (or twisted pair) transfer medium. Check out this writeup from wikipedia:

http://en.wikipedia.org/wiki/Waveguide_(electromagnetism)