LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #9   Report Post  
Old November 28th 05, 03:20 PM posted to rec.radio.amateur.antenna
Cecil Moore
 
Posts: n/a
Default Antennas-History (What's Going On?)

K7JEB wrote:
From an Optics viewpoint, we've been at this for an
awfully long time. Maxwell's equations and quantum
mechanics are just frosting on a very large cake. A
great deal of Physics has been devoted to studying
electromagnetic radiation over the centuries.


In particular:
An understanding of how RF reflections can be eliminated
by a 1/4WL series matching section can be had from
understanding how a 1/4WL layer of thin-film on glass can
eliminate coherent light reflections from the surface of
the thin-film. The irradiance equations which predict the
power distribution of light waves undergoing interference
can be used to understand RF energy flow in a transmission
line with reflections. Staring at oneself in a mirror
should convince any skeptical RF engineer that reflected
energy actually makes a round trip to the reflection point
and back and doesn't flow directly from the image-source
to the eye (or to the circulator load resistor). :-)
--
73, Cecil http://www.qsl.net/w5dxp
 
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
F/A New Motorola VHF portable antennas (Motorola Branded!!) Andy Scanner 1 May 26th 04 09:22 PM
F/A New Motorola VHF portable antennas (Motorola Branded!!) Andy Swap 0 May 18th 04 10:14 PM
George Bush OT Twistedhed CB 2 April 10th 04 12:32 AM
Poor quality low + High TV channels? How much dB in Preamp? lbbs Antenna 16 December 13th 03 03:01 PM
Poor quality low + High TV channels? How much dB in Preamp? lbbs Shortwave 16 December 13th 03 03:01 PM


All times are GMT +1. The time now is 03:23 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