I don't know what design services you offer but you are WRONG.

You must have been reading the wrong comical magazines.

A choke balun is amongst the most power-efficient devices.



I don't know where you get your balun information, but you really need
to do more homework, apparently. BALUNs can become quite lossy,
depending on the impedence characteristics of the antenna you are trying
to match at a particular frequency.

There are hundreds of sites where you can find this information....

http://www.cebik.com/a10/ant48.html is just one, for example.

Do some homework.



Ed K7AAT