Greetings Colleague:
Without direct experience or in-depth analysis of the situation you
describe, an "intuitive" thought occurs to me. Have you tried skewing
your base-antenna such that the "cavity" is illuminated "spirally"
instead of parallel to its long axis and orthogonal to the ends?
Perhaps this will achieve more even illumination and less pronounced
spatial standing waves. Also, is the gain of a Yagi justified, or
might a simple dipole be more appropriate?
FWIW;
DaveR
On Thursday, April 06, 2000 at 10:50:57 PM, KwanMeng Chong wrote:
> Hello,
>
> We have to study the coverage of a DECT phone system (1.8 GHz, TDMA)
> in a metal tunnel 10 meters width, 5 meters height and 40 meters
> depth. Both ends of the tunnel are covered with metal, and as such,
> the tunnel looks like a metal box....
Received on Sun Apr 09 2000 - 12:25:08 EDT
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