An antenna question--43 ft vertical
"rickman" wrote in message ...
On 7/2/2015 8:53 PM, Wayne wrote:
"rickman" wrote in message ...
On 7/2/2015 3:52 PM, Wayne wrote:
Why will the reflections not have losses?
Because the assumption I posed was for a lossless line. In that case,
with a conjugate match on both ends, wouldn't there be maximum power
transmission regardless of the SWR?
You aren't grasping the issue. Losses are *not* only in the transmission
line. When a reflected wave returns to the transmitter output, it is not
reflected 100%. If the output and transmission line are matched exactly,
50% of the reflected wave reaching the output will be reflected and 50%
will be dissipated in the output stage.
I don't think I've ever heard that anywhere before. Could you elaborate?
Are you suggesting that the conjugate match will reflect back to the
antenna 100% of the original reflected wave from the antenna?
Well, yes. Minus losses in matching networks and transmission lines.
In examples with lossless lines and lossless matching networks, wouldn't it
be 100%.
|