Simple Two Element

Willow

What is a Weeping Willow? Just a vagi with bent elements, making it half as wide as it would normally be. Will il work? Well, the first time I put it oil the air I got a new country, Ireland, 5X9 on 15 meters. Another Irish ham called me when I finished with the first, a situation to wMch I am not accustomed (he gave me 5X9, too). This was early in the morning, when the East dominates 15. Listening to a WB6, I found that his signal dropped about 3 S units off the side and nearly 4 units off the back. Satisfied? Read on.

I have a lousv location. In anv direction, r J

the antenna faces houses and fifty-foot tall trees. There is a hill peak about sixty yards to the west. My 40 meter dipole at forty feet did a fair job, However, I wished for some-ihing more. My two hundred watts PEP couldn't hold its own. The Weeping Willow, even at its present height of only twenty feet, gives me several advantages, among them: L Rotatability: Ever wished that you could rotate your dipole to get a lobe on a good DX station?

Unidirectionality: It sure is wonderful to cut down those Sixes when I want to hear Europe. And that gain! Less QRM coming in and more oomph going out. 3. Small size: If your mounting area is as smal as mine, you will appreciate the size of this antenna. 1 have a hole in the trees

Terry is a senior in high school ami he'll enter Brown University in the FalL He likes to DX.

Fig, 1. Configuration of the elements of the weeping willow.

that is barely big enough for a 6 meter beam, much less a 15 meter beam. This antenna has the width of a quad with one-hall the height- he turning radius is only seven feet.

4. Low cost! Even if you must buy all the materials involved, the cost should be about fifteen dollars. This isn't bad for what you get.

The Weeping Willow is formed as in Fig. 1« This antenna was mentioned in an article about a quad1. lie elements are the same length as those of a vagi. However, one-fourth of the element's length on each end is bent downward 90°. Thus, my 15 meter version is approximately eleven feet across instead of twenty-two, and five and one half feet tall, Of course, this bending makes a 15 meter version a one band antenna. For those so inclined, a 20 and 10 meter antenna could be built with traps at the bends, a two band an-teiina the size of a 10 meter beam (how about a 40 and 20 version; its only thirty-three feet across). Mine is two clement because of the

size and cost, but you might like three or more, I used ,15 wavelength spacing between elements as recommended by the ARRL Antenna Book. The antenna in the picture cost me about $2,15 because 1 had almost all of the necessary materials on hand, here is only one big requirement to be met with my version: the elements must be above ground on the metal boom. This is not due to the antenna design, but to the matching section described later. A gamma or T" match would not have this restriction. For anyone who does not have the materials I used, the possibility of a wooden boom might be investigated. A list of the dimensions for those who do not have a handbook:

driven element (in feet) -:—tttt treq. in MHz reflector (at .15 wavelength spacing)—

Fig, 1. Configuration of the elements of the weeping willow.

iDavid Morgan, KGDDO. "Three Elements on Three Bands," 73, July, 1963, P. G2.

15 meter weeping willow over WA8MVR's ise.

15 meter weeping willow over WA8MVR's ise.

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