I think that RF is too wide to be covered by any one book. I think that putting in a few hundreds of hours in the lab actually doing things is necessary before one can start to understand the connection between the heavy math in the books and reality, and one does not replace the other. I knew EEs who came out of school, could not tell Neptune's trident from a phased whip array, and worse. I don't think that there is any one introductory book that would cover the domain. And RF simulators are notorious for producing results that are totally different from what can be realised practically. Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist