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home brew yagi

Aug 13th 2015, 19:32

kw5jc

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
I am building a 2 element mini beam (yagi) for 20 meters.
Should the second element be a director or relector for
more gain?
I live in a low QRM nieghbor-hood.
Tlhanks for your suggestions and input.
Jack - KW5JC
Aug 13th 2015, 20:21

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0

You can typically get more gain with a director. But, if you want to cover more than a small part of the band, you may want to go with the reflector for a higher matching impedance and more bandwidth.

http://www.qsl.net/dk7zb/start1.htm
This page has some designs--he suggests using a director on the narrow WARC bands and a reflector on 10/15/20 meters.

Zack Lau W1VT
ARRL Senior Lab Engineer

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