Radome to active element separation
Radome to active element separation
(OP)
Could any point me towards some guidelines for separation between active elements of UHF antennas (helix, yagi etc) and their radome? I was assuming half wavelength but I could do with coming in closer. Thanks.





RE: Radome to active element separation
http://www.rfbeam.ch/fileadmin/downloads/appnotes/...
Dan - Owner
http://www.Hi-TecDesigns.com
RE: Radome to active element separation
Of course, your application may be different than the usual.
RE: Radome to active element separation
Hence if your radome is going to touch a resonant antenna (narrow band, or log periodic or Yagi), then it will shift it down in frequency, even if the radome is entirely foam, and hence you'll need to adjust your elements making them shorter to retune it.
If the radome does not touch the antenna, you can probably locate it maybe 1/2 inch away.