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hi antenna experts.
i designed a Reflectarray unit cell with proper phase shift in CST.
i used unit cells in array and fed it by a horn antenna.
the solution type is integral equation.
now i want to know how can i gain the phase of each element(phase of fields or reflection phase ) after...
Hi all.
I'm working on Reflectarray.
i have designed my unit cell by CST.
after designing the unit cell i placed the cells in array form and excite it with a horn antenna.
now, each element have it's own phase in re radiating field. so we should know the element phases to compensate them to...
hi gyz182.
yes that's right, the software doesn't use virtual cores..
do you know how can i fix the problem.
i tried CST 2015 and 2016 but same problem.
thanks
hi.
i have a question about CST solver.
CST doesnt use all cpu capacity.(about half... 50%)
what can i do for it.?
in installation it doesn't ask for 32 or 64 bit version.
and i use WIN7 X64 and intel 5820K cpu( 12 cores)
i appreciate if someone helps.
Egle Direction
hi guys.
i have a problem with CST 2015 . when i run a project the software doesn't use all cpu cores. and it only use 50 percent of cpu like below
and when i installed the software, it automatically installed in c:/Program files (x86)...
im using win 7(x64) and all other softwares (like...
hi all.
are you still here? ;)
im designing a reflectarray with HFSS and CST.
i have designed my unit cell and the phase curves seems good.
my unit cell have a varying stub length that produce different phase delay.
Now i want to use it as array and each cell element should have its own phase...
hi all.
im still confused about the reason of this gain drop in radiation pattern of our Franklin Colinear antenna.
we have decide to bought a commercial(germany maded) antenna and check the pattern of that antenna... the result is attached..
we are sure about this new antenna. but the test...
thank you all.
i did the pattern measurement again with a new structure.
i have seen asymetry again. but i don't know what is the problem... in simulation i have symmetric pattern...but measurement doesn't match to the simulation.
this is measured pattern.
the right side of the pattern...
thank you for your attention.
we put the antenna on a vertical holder . one half of this holder is metal and other half is teflon.
i mean the antenna is fastened to teflon part.. the antenna and holder make a T shape figure.
the leg of T is holder. and the top of T is antenna.
the metal part...
yes this is a kind of Franklin colinear antenna.
the measured H plane pattern is like this:
one side of the pattern have degradation.
i have changed the antenna structure in simulation and checked it again, but same result obtaine.
hi Azulykit.
thank you for your reply.
My problem is the cause of the gain drop in the right side of the pattern.
the antnna simulated gain is about 4.6dB, and with this drop the gain drop to 2.8dB, and this is very bad to us. and the symmetry is important in this project.
hi all.
I have designed a planar colinear 3 element array antenna in HFSS. and the simulated results are pretty good. measured s11 result match the simulation one. But the measured radiation pattern is not match the simulation.
i expected the radiation pattern to be omnidirectional but the...
thank you andre.
is it applicable to manufacture it as one part (by wire cutting or Spark) and then heat it and twist by som device?
if yes , is it reasonable to heat and twist such frequency sensitive device ?
thank you
hi all.
i have a small piece of 6061 aluminum with 6cm length. i want to twist it by 45 degree.
how can i do it.
this device is an antenna and will be used in 6-18GHz.
i want to know if i can heat this device and rotate it by 45 deg with linear step?
or some other ways to manufacture it.
thank you vfone.
could you explain more about the reason of this.
i have 45 degree for twisted double ridge waveguide in 6-18GHz, so according to your description it should be grater than one lambda. correct?
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