[Lowfer] EH Antennas

[Ed Phillips]

Bill Ashlock wrote:
> 
> Hi Tom,
> 
> >Efficiency heavily depends on cancelling reactance
> >without adding unnecessary loss, and the EH antenna does a poor job
> >of that...and a good job of exciting the feedline.
> 
> Well put!
> 
> >By the way, the same guy who claims to have invented the E-H antenna
> >told a local radio club he invented the small loop antenna.
> 
> Was this Ted Hart?
> 
> >Based on that, he must be at least 130 years old
> 
> Do you have, or know of any articles or publications covering early TX loop
> antennas?
> 

	Take a look at the configurastions shown in figure on page 104 of San
Francisco Press'

	"HEINRICH HERTZ
	  A Short Life"

by Charles Susskind.  Published in 1995 and probably available through
Amazon or one of their used book dealers, else direct from San Francisco
Press (look 'em up in Google).  Good little biography which I recommend
to all with a technical bent. The figure is reproduced from his 1887
paper "On very rapid electric oscillations."  Mainly show loop receiving
antennas, but "same difference".  I'm sure the same stuff is available
by a Google search.  I also have a 1938 issue of the Proceedings of the
IRE which was published on the occasion of the 50th anniversary of
Hertz's discoveries, but can't find it in all the junk here to give the
particular month.

	Since the publication was in 1887 and the work was done before then, I
would figure that since he was must have been at least 15 years old at
the time (obviously a lot older than that) an age of 130 years is
optimistically young.

Ed