Dan:
Thank you for your response.
Given the choice, I will definitely not transmit 2GHz under water. This is a situiation we have to deal with whether we like it or not. I just found out deionized water loss tangent is 0.048, it is much better than 0.17. This helps a lot.
Does this number...
I know fresh water Er is 81 and loss tangent is about 0.17.
Could somebody tell me the loss tangent for ionized water at 2GHz?
Thank you for your help.