Rectangle Loop for 2m
This is what i have built recently its a bodge or heathkit design made from 8mm Ali tubing form an old 2m yagi beam that came from an old 15m beam elements.
But it works. Did some brazing with low temp rods BUT do note when doing this you nearly have to melt the Ali tubing to bring the metal to temp to use the Ali low temp rods. And made me bends out of 6mm Ali tubing with 4mm metal studding bars. Idea was to allow me to make bends of right angles with the bar inside the 4mm tubing and bend it with out breaking or folding on itself and inserted into the 8mm tubing and low temp brazed on the joints,
Now according to the net the max gain you get of a FW loop is a circle and next up is a rectangle shape side fed both giving tad more gain over other loops designs being cause its 50 ohm impedance and not Q fed.
So next task is to get hold of some 6mm ali tubing and a mini pipe bender and make a seamless type and this time side short side fed it as unsure if impedance is badly effected of long sided of rectangle fed like i have here.
Then into phase 2 of making 2m Moxons out of Ali tubing. Idea is to hang it vertical for vertical polar and hang it flat as in Hoz into hoz polar the TX. And all all you need is some fishing wire on each corner and suspend from your squid pole when out portable.
Tis antenna will be light weight no extra supports the Ali tube does that on tod and a simple direct 50 ohm feed point for FW loops and Moxon versions.
Also going to look into doing a 6m Fw Loop. But make it so it easy comes apart to transport and make ready for going on air. And Moxon version of course. For use at home or portable.
Some of you may remember that days before UHF was mobile peoples used these rectangular antennas as mobile antennas back in the day one or two older gents of the ham nature informed me.