LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Report Post  
Old May 29th 09, 06:39 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Loop antenna matching question

Michael Coslo wrote:
Jim Lux wrote:

Consider this.. if the loop has an electrical Q of, say, 1000 (which
isn't unusual), and you're radiating 100W, then there's 100kW of
circulating power in the system.


Works on zero point energy?


Nope, the 100k joules/sec was stored in the system
during the initial transient key-down state and was
not radiated. It won't be radiated until the transient
key-up state. This is a characteristic of standing-
wave antennas. In a 1/2WL dipole, only about 20% of
the energy stored in the antenna is radiated. In the
small loop above with its astronomically high SWR,
only about 0.1% of the energy stored in the antenna
is radiated during steady-state.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com
 
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
Receiver antenna/amplifier matching question Joel Koltner[_2_] Antenna 6 March 18th 09 12:54 AM
SkyWire Loop Antenna [Was: Wire loop.] Question RHF Shortwave 0 September 21st 05 10:15 AM
Mobile Antenna Matching Question wb5cys Antenna 128 June 15th 05 03:41 AM
please need help with delta loop antenna better matching system than gamma match Silvio Antenna 4 November 15th 04 08:42 PM
help with matching system on delta loop antenna Silvio Homebrew 0 November 6th 04 02:19 PM


All times are GMT +1. The time now is 05:35 PM.

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