Home |
Search |
Today's Posts |
#17
![]() |
|||
|
|||
![]()
lu6etj wrote:
Dear Roy: This is a brilliant piece of work, it clarify so much misconceptions (or extension of certain concepts beyond its scope). However the question of "why" persist floating somehow. Without leaving conventional approachs I think in the article cited in the "Where does it go?" thread there are some helpful and valuable hints: http://www.ittc.ku.edu/~jstiles/622/...es_package.pdf Page 25 = "The precise values of Vo+, Io+ Vo+ and Io- are therefore determined by satisfying the boundary conditions applied at each end ofthe transmission line. Page 28 = Although Vo+- and Io+- are determined by boundary conditions (i.e., what’s connected to either end of the transmission line), the ratio V+- / V+- is determined by the parameters of the transmission line only ( R, L, G, C). What it is your opinion about? 73 - Miguel Ghezzi - LU6ETJ Hello Miguel, The part of the paper you quote is very standard transmission line analysis which can be found in any textbook on the subject -- although I find this treatment to be better written than most. Nothing I have ever posted contradicts, or intends to contradict, the very well known and established theory which has been found to be correct and useful for over a hundred years. What I find silly is the idea that there are waves of average power bouncing back and forth, needing to "go" somewhere, and the specious arguments put forth in desperate attempts to explain where these elusive waves "go" and how they supposedly behave. (But interestingly, people seem much less concerned about where that extra "forward power" comes from.) It's very much like a pseudo-scientific exposition on the nature of ghosts or arguments about the effects of various astrological signs. As you've hopefully seen from my few recent postings, it's painfully simple to show that most of the conceptions about these power waves are ridiculous. But one can't change someone's religion by means of rational arguments, and it's a fool's errand to try. So my postings aren't directed to the power-wave zealots but rather to the few people who are still open to reason. I see you're one of them, and I'm glad you've giving the topic some careful thought. Roy Lewallen, W7EL |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Reflected Energy | Antenna | |||
Reflected power ? | Antenna |