LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Report Post  
Old July 3rd 15, 08:27 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 409
Default 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%.

 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Vertical Antenna Performance Question N0GW[_2_] Antenna 40 February 20th 08 03:52 AM
Antenna Question: Vertical Whip Vs. Type X Robert11 Scanner 2 June 29th 07 12:49 AM
Question about 20-meter monoband vertical (kinda long - antenna gurus welcome) Zommbee Antenna 8 December 28th 06 12:53 AM
Technical Vertical Antenna Question LiveToBe100.org Shortwave 1 February 26th 06 06:56 AM
Short STACKED Vertical {Tri-Band} BroomStick Antenna [Was: Wire ant question] RHF Shortwave 0 February 23rd 04 12:59 PM


All times are GMT +1. The time now is 08:47 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017