Homebrew HF Monobander Designs

[W4DJ]

Over the last 20 Years I have designed my own Monobanders.
I will list them all here for whoever would like to build them.
I will add more as I find the drawlings while looking through boxes as I have many. Have Fun!

Here is the design for a 17 Meter Monobander and I used a hairpin match to adjust the impedance on this antenna as i may have had interaction when these antennas were stacked.

Usually just a good 1:1 Balun works just fine.

DIRECTOR - 25'
DRIVEN - 26' 3"
REFLECTOR - 27' 3"
SPACINGS
BETWEEN DIRECTOR AND DRIVEN - 8' 1"
BETWEEN DRIVEN AND REFLECTOR - 7' 5"

Here's another custom design for a 4 Elem 17 Meter Monobander.
DIRECTOR 1 - 25' 2"
DIRECTOR 2 - 25' 2"
DRIVEN - 26'
REFLECTOR - 26' 9"
SPACINGS
BETWEEN DIRECTOR 1 AND 2 - 13' 7"
BETWEEN DIRECTOR 2 AND DRIVEN - 13' 7"
BETWEEN DRIVEN AND REFLECTOR - 10' 10"


Here's the design for the 4 Element 28MHZ Monobander
DIR 1 - 15' 10"
DIR 2 - 15' 11"
DRIVEN - 16' 4"
REFLECTOR - 16' 10"
SPACINGS ON A 19' 9" BOOM
BETWEEN DIRECTOR 1 TO DIRECTOR 2 - 6' 3"
BETWEEN DIRECTOR 2 AND DRIVEN - 5' 11"
BETWEEN DRIVEN AND REFLECTOR 7' 8"


Here's my design on a 4 Element 20 Meter monobander
DIRECTOR 1 - 31' 6"
DIRECTOR 2 - 31' 8"
DRIVEN - 33' 1"
REFLECTOR - 35' 10"
SPACINGS
BETWEEN DIRECTOR 1 AND DIRECTOR 2 - 13'
BETWEEN DIRECTOR 2 AND DRIVEN - 12' 6"
BETWEEN DRIVEN AND REFLECTOR - 14' 6"


Here's a design for a 2 and 3 elem 40 Meter full size Monobander.
2 ELEMENT 40 M MONOBANDER
DRIVEN - 67' 8 1/2 "
RFLECTOR - 70' 5 1/4"
SPACINGS
19' 3"
7.02db FORWARD GAIN
6.1db FRONT TO BACK
19' 3" BOOM

Here's the three Element version
DIRECTOR - 66' 5 3/4"
DRIVEN - 69' 8 1/2 "
REFLECTOR - 70' 9 1/2"
SPACINGS
BETWEEN DIRECTOR AND DRIVEN -
39' 3"
BETWEEN DRIVEN AND REFLECTOR - 21' 6"
7.80db Forward Gain
21.8 Front to back
39.3" BOOM

[VE1IDX]

I'm looking for a good design for a full size four or five element beam for 160m. Any suggestions?

[WZ0O]

Lots of room, big tower, and one hell of a rotator.