Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate
that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views.
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Below are all of the forum threads, including all
the responses to the original posts.
Post subject: Reflector antenna with very low sidelobe level
Posted: Sun Jan 23, 2005 10:39 pm
Antenna Diameter : 1.25 meter
Freq : 7.25~8.4
Efficiency : 60%
First Sidelobe level
: -14 dBc
level : 32-25log(theta)
Type : (Cassegrain.
Gregorian, ADE whatever)
It's very hard to
satisfy that spec (SLL).
This Antenna is 30 lambda
big, and our customer request 32-25log(rheta).
(It should be 52-10log(L/D)-25log(theta) by ITU
Recommend Regulations though)
If anyone knows
any product, please let me know...