Pooh,
I have seen similiar gates from other vendors, most operate on the same principal. (A wire running across horizontally with more wires hanging down from it, with a bungee cord or retracting reel set up on the two ends. The bottoms are anchored, some way, to the ground.)

One solution I saw many years ago was either in Successful Farming or Progressive Farmer. What the person did was take a cattle panel and pin it to the ground to form an arch, which he would then drive across. I don't know how well or how long this would work, but you might see if there is anything on the web showing a similiar set up. (In your situation you would have to run a strand of wire above the height your head would be at whenever you ride into or out of the cattle pasture.) Of course another solution would be to build a cattle guard. Treated posts or lumber set across a trench dug into the ground. The posts or beams are placed far enough apart that the cattle will not walk across it out of fear of falling through, but you can drive across with your four wheeler or tractor or truck.
Kevin

Poohbear,

Don't remember the details of the thing, but I remember reading about a home built solution and I think it was in Farm Show magazine. They have a web site and are rather generous with information.

Bob

I'll see what I can dig up about that.
Thanks for the lead.

Pooh Bear