The AM Forum
June 12, 2024, 11:35:08 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
Author Topic: How to calculate theoretical tank inductance for Link Antenna Coupler  (Read 3558 times)
0 Members and 1 Guest are viewing this topic.

Offline Offline

Posts: 435

« on: January 20, 2010, 07:42:11 PM »

Hi to all:

(1) How do you calculate the theoretical inductance of a tank coil for a given band, i.e. 1/8 Mhz/160 meters?  This tank coil is for a link antenna coupler.  I will be connecting the tank/output capacitor electriclly in the middle of the tank coil dividing it into two halves.  

If the length of the antenna system is 3.5 quarter wavelengths long then antenna system is 1/8 wavelength to long to be true current/low impedance feed.  This length is also 1/8 wavelength to short to be true voltage/high impeadance feed.   I need to add 3/8 wavelength of inductane to the tank coil to achieve 5 quarter wavelengths in total length.  This 5 quarter lenght would be a high current point, loop, for low impeadance/current feed.  I want to current feed the antenna system.

(2) How to you calculate for this extra 3/8 wavelenght of inductance that will be added to output tank coil?

Chuck Pool - AA5WG
Cedar, Michigan
Pages: [1]   Go Up
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.063 seconds with 18 queries.