Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old February 10th 06, 07:45 PM posted to rec.radio.amateur.antenna
Cecil Moore
 
Posts: n/a
Default folded dipole

Richard Harrison wrote:
The actual impedance of the 1/4-wave folded dipole is an inverse
function of the wire diameter. It can be chosen to present 6000 ohms.
If the 1/4-wave folded dipole is a little short of 1/2-wave around its
perimeter, it presents an inductive reactance. If a little longer
electrically than 1/2-wave around, it presents a capacitive reactance.


Using EZNEC, I just did a frequency sweep on a #14 folded dipole
around half its design frequency. There were no apparent resonant
effects. How big does the wire have to be for a 130ft folded dipole
to exhibit a feedpoint impedance of 6000 + j0 ohms on 160m? Why is
no one using such an antenna on 160m?
--
73, Cecil http://www.qsl.net/w5dxp
Reply
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
I Want Another Antenna Lenny Shortwave 4 January 23rd 06 10:12 PM
ABOUT - The "T" & Windom Antenna plus Twin Lead Folded Dipole Antenna RHF Shortwave 0 November 4th 05 06:13 PM
Workman BS-1 Dipole Antenna = Easy Mod to make it a Mini-Windom Antenna ! RHF Shortwave 0 November 2nd 05 11:14 AM
Wideband VHF Yagi - Do I have to use a folded dipole configuration? Richard Antenna 15 June 3rd 04 03:43 PM
Tuning a folded Dipole? ZL3VML Antenna 1 December 25th 03 12:10 PM


All times are GMT +1. The time now is 10:46 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