Topband: Dual loaded loop receiving antenna Historical Evolution

[donovanf at erols.com]

This is a much better URL for Weagant's classic article 


worldradiohistory.com/UK/Wireless-Age/Wireless-Age-1919-Apr.pdf 


73 
Frank 
W3LPL 




----- Original Message -----

From: "Jose_Carlos" <N4IS at COMCAST.NET> 
To: "CUTTER DAVID via Topband" <topband at contesting.com> 
Sent: Friday, February 26, 2021 4:27:50 PM 
Subject: Topband: Dual loaded loop receiving antenna Historical Evolution 


Hi guys 

This is a collection of paper I was able to put together, please it is a working in progress and new entries are welcome. My eye is not doing well and it is hard for me to type, so this is a copy and paste. 


1919 

March 5, 1919, Roy A. Weagant, Chief Engineer of the Marconi Wireless Telegraph Co. of America, delivered a paper describing in detail his apparatus for the elimination of the great bug-bear of transoceanic wireless communication --static interference. >> 

http://infoage.org/html/wa-1919-04-p11.html 

1938 

Harold Beverage invented wide band receiver antenna, loaded loop. The present invention relates to short wave antennas and, more particularly, to antennas for receiving horizontally polarized waves over a wide band of frequencies. An object of the present invention is to enable the reception of horizontally polarized signals over a wide band of frequencies such-as is at present used in television. 

https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US2247743.pdf 

1940. 

Nearly all the newly re-invented compact receive antennas derive from the terminated loop, the earliest reference was in an appallingly mimeographed prewar training manual of W3EEE Dad‘s 

1973 

COMMUNICATIONS 74 CONFERENCE BRIGHTON Wednesday, June 5 1974 —Session 5 Equipment Design Paper 5.3: Loop Antennas for HF Reception Contributed by: B.S. Collins, C & S Antennas Ltd., 

1995 

JF1DMQ wrote an earlier article about the Flag antenna in November 1995 in a Japanese magazine. His was only 3.3 feet by 16.4 feet long (1 by 5 m). K6SE's 160m optimized versions are 14 by 29 feet (4.3 by 8.8m). 

1995 

"Is This EWE for You?" (QST February, 1995, p.31) and "More EWES for You", 
QST January, 1996, p. 32) both by WA2WVL. 

1996 

The Pennant was originated by EA3VYand optimized for 160 meters by K6SE, who first wrote about them on the Top Band Reflector in 1998 

1997 

The K9AYTerminated Loop—A Compact, Directional Receiving Antenna By Gary Breed, K9AY 

1998 

W7IUV rotatable Flag and preamplifier >> http://w7iuv.com/ 

2000 

QST Magazine, July 2000, page 34 for K6SE's classic article: 
"Flags, Pennants, and Other Ground-Independent Low-Band Receiving Antennas" ... 

2003 

NX4D developed the first dual flag vertical array 

2006 

N4IS developed the BIG flag vertical array 

2008 

N4IS developed the Horizontal flag array 

2009 

Dr Dallas Lankford, wrote the Flag Theory and design the Quad Flag Array >> Dallas Files The Dallas Files are now found here: http://groups.yahoo.com/group/thedallasfiles2 

2009 

AA7JV George Wallner developed the DHDL (TX3A) >> http://tx3a.com/docs/TX3A_DOUBLE_HALF_DELTA_LOOP.ZIP 

2009 

DOUBLING the Double Half-Delta Loop Receiving Antenna 
by Pierluigi“Luis” MansuttiIV3PRK >> 

http://www.iv3prk.it/user/image/..-rxant.prk_tx3a.pdf 



Please add new papers 


73’s 
JC 
N4IS 

Sent from Mail for Windows 10 

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