Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
Hello all,
I do appreciate the input, seems like its not such a good idea! Just to clarify the actual construction details, the configuration would be in a dipole. The 1/4 lambda wire would be wound on a form which has slots cut into the periphery of an insulator to accommodate the wire and the form would be 300mm (12") in diameter, the wire would be wound from top to bottom of the form until all the wire is wound on the form. I envisage a 75mm (3") gap between each slot, maybe more depending on the distance between the circular insulators, around 1500mm (5 ft). Hopefully you can picture what I was going to build! John VK2KC There would be two of these and "Richard Harrison" wrote in message ... Wim, PA3DJS wrote: "The zig/zag pieces do, however, not contribute to the far field radiation." My take is slightly different. The complete antenna can be considered as made up of infinitely small pieces, each of which contributes to a wector sum at a distant point in the far field depending on the current in the tiny segment and its position. Best regards, Richard Harrison, KB5WZI |
#2
![]() |
|||
|
|||
![]()
VK2KC wrote:
Hello all, I do appreciate the input, seems like its not such a good idea! It's not the best idea, but don't think it's not a good idea. If you use a broad definition of meander, you can have drooping ends, of one time I made an antenna that was sort of "Z" shaped. It's making antenna for the space you have available. Just to clarify the actual construction details, the configuration would be in a dipole. The 1/4 lambda wire would be wound on a form which has slots cut into the periphery of an insulator to accommodate the wire and the form would be 300mm (12") in diameter, the wire would be wound from top to bottom of the form until all the wire is wound on the form. I envisage a 75mm (3") gap between each slot, maybe more depending on the distance between the circular insulators, around 1500mm (5 ft). Sounds like a form of slinky antenna to me. You wouldn't end up with a quarter wavelength on each side, it would be less due to inductance. What frequency are you looking at here? - 73 de Mike N3LI - |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|