[Antennas] Loop in Loop

[CubexCo at aol.com]

In a message dated 5/17/2004 11:59:11 AM Eastern Standard Time, 
antennas-request at mailman.qth.net writes:
I've been using a homebrewed vertical HF (20 meters) diamond loop for 
about 2 years now with very good results.
Yesterday while watching an old maritime B&W movie with a the vertical 
multi loop antenna on the ship center mast, I wondered, would a similar 
design perfom better than the single loop as I'm using ?

I checked several publications for information on loop inside a loop 
antennas, the ARRL handbook has a similar configuration but for RX only.

Does anyone have any information on vertical loop inside a loop 
transmit antenna ?? 

73
Demetre - SV1ENS
===============
A multiband Quad antenna is essentially what you have described, loops within 
loops.  A single set of loops (no reflector or directors) source impedance is 
high - about 140ohm, and they are bi directional.

Norman W4QN

http://www.cubex.com/
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