I have an RF question which has been bothering me for a while. I have
a 900MHz 1W transceiver module which I'm planning to put in a model
plane for telemetry purposes. Every gram counts so rather than using
an off-the-shelf antenna I'm planning to make a dipole from conductive
foil tape stuck to the wing. I have a small amount of experience with
VSWR meters so I think I can get that part of the system working
pretty well.

My problem is that the output of my transceiver is 50 ohms unbalanced
and dipoles are an inherently ~73 ohm balanced antenna. I want to
connect the transceiver to the antenna in the lowest loss way I can so
I'd prefer to avoid using a balun if at all possible. Weight is also a
consideration here.

Is it "good enough" to connect the signal and ground to the two arms
of the dipole or is there some better low-loss, low-weight way I can
do this?

Incidentally this is a for-fun project, not a hugely important
commercial application so some bodginess is fine.

Cheers,
Zik VK3MHZ
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