Hi,

I am looking for someone who would be interested in designing a Yagi
antenna under contract. (Paper design is fine, I can construct and test
the unit).

The frequency band required is 915 - 928 MHz

I prefer a design that is simple to make such as elements though beam,
welded in place.

The design needs to be reasonably short (Beam length less than 300mm).

The material I have freely available is 6mm solid aluminium rod (and
larger if needed), 12.8mm square aluminium tube (or larger if required)
but have difficulty obtaining smaller than this.

Power handling is not critical as max. power is 1 Watt.

Units will be used in vertical orientation and beam width is not critical.

Required gain is at least 6dB (4 or 5 element should suffice).

Feed line is 50 Ohms coaxial cable.

SWR across band target 1.4 : 1

Maybe folded element would be the simplest to match to with a balun even
though I have to create the bends. I expect the dipole can be held in
place by small plastic enclosure that isolates the radiator from the
beam and enables connections to balun and feed line via cable glands ?

Please email me direct if you are interested.

Thanks

regards

David