I am under the impression that a person might be able to use a short (10 foot) piece of coax to run 10 GHz microwave RADAR energy down instead of using WR90 waveguide. Is this even remotely possible? Is there any such coax that can handle the RF peak pulse or AVG power form an old RADAR set from the 50's? I realize the purpose and reasons for waveguide, but its expensive and usually difficult to work with unlike coax. I'm just not versed enough to know if such a thing can work even if there are acceptable drawbacks like a little extra loss. The RADAR I speak of is an old 10kW Bendix airborne RADAR. I use these type relics from eBay to study RADAR and experiment with high power microwaves. Any useful wisdom from some of you more senior microwave types would be very valuable to me in this endeavor. Many thanks and please... Stay Tuned!