The wood is not critical so see what is available and adjust the design to suit. a total of six for a 3 element 2 metre cubical quad. Each element is made up from a cross of available wood approximately 12.7 x 12.7 mm (1/2 by 1/2 inch) wood – it requires tow lengths each, i.e. Similarly an open circuit stub makes the director capacitive and effectively shorter than an electrical resonant length.Ī quad for internal use can be made quite simply by constructing a simple wooden frame. A small short circuit stub makes the reflector inductive, thereby effectively making it longer than the resonant length.
It should be remembered when considering its use that the quad, when fed at the bottom gives horizontal polarisation.Ĭonstruction of the 2 metre cubical quad does not require any specialised tools and can be accomplished using the basic tools available to any radio amateur or short wave listener.Īt the outset it as decided to make each element the same size, and then use small electrical stubs to extend or decrease the electrical size of the element. The cubical quad antenna lends itself to use at VHF and UHF, and a 2 metre quad or two meter quad is easy to make using a few items that are easy to obtain or may even be available anyway. 2 Metre Cubical Quad Antenna Design Design for a simple and easy 2 metre cubical quad (2 meter) antenna for internal use with all constructional details.Ĭubical quad antenna basics Quad beam antenna with reflector & director 2 metre cubical quad design
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