Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
Vertically Polorized Omni Slot Antenna
On Mon, 17 Apr 2006 14:34:44 -0500, "Hi" no@spam wrote:
I was thinking if the slots were cut horizontally rather then vertically. Won't work? Hi Matt, No, it won't. 73's Richard Clark, KB7QHC |
#2
|
|||
|
|||
Vertically Polorized Omni Slot Antenna
I was thinking if the slots were cut horizontally rather then vertically.
Won't work? Hi Matt, No, it won't. Thanks for the response. Any sort of waveguide based antenna that will work as vertical omni? Matt |
#3
|
|||
|
|||
Vertically Polorized Omni Slot Antenna
On Mon, 17 Apr 2006 18:08:39 -0500, "Hi" no@spam wrote:
Thanks for the response. Any sort of waveguide based antenna that will work as vertical omni? Hi Matt, You are bucking the dominant waveguide mode with the design you've found. Turning the slots will kill it. Just turn the design you've found sideways. The alternative is you choose a larger waveguide and introduce iris apertures inside the waveguide to force a mode that would allow turned slots. This is all in presumption that you want a vertically oriented fixture (taller than wide) to give you vertically polarized signals. Other options include horns and truncated parabolic reflectors - or something as simple as a 90 degree sweep with a small flared opening for matching. This would no longer make it omni though. 73's Richard Clark, KB7QHC |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|