LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #27   Report Post  
Old December 5th 05, 07:58 PM posted to rec.radio.amateur.antenna
Richard Harrison
 
Posts: n/a
Default Antenna reception theory

it is just as easy to remove the H-field from the wave as it is to
remove the E-field with a Faraday screen.

To remove the H-field, one sure way is to completely enclose two coils
so they are completely shielded from each other and all electromagnetic
waves. Put the coils in separate metal cans. Put a tiny hole in each
can. Conect one termial of each coil to its end of a coupling capcitor.
Ground the other terminal of each coil.. Ground is the return path for
the coils but it must run on the surfaces of the cans and through the
tiny holes due to skin effect.
Complete shielding removes the H-field as a coupling agent. Only E-field
coupling is provided via the coupling capacitor.

Best regards, Richard Harrison, KB5WZI

 
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
Inverted ground plane antenna: compared with normal GP and low dipole. Serge Stroobandt, ON4BAA Antenna 8 February 24th 11 10:22 PM
significance of feedline orientation Brian Shortwave 6 October 22nd 04 01:43 AM
Question for better antenna mavens than I Tony Meloche Shortwave 7 October 28th 03 09:16 AM
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 07:44 PM
Outdoor Scanner antenna and eventually a reference to SW reception Soliloquy Shortwave 2 September 29th 03 04:04 PM


All times are GMT +1. The time now is 12:24 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