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HI
please i want to simulate array of patch antenna with dgs , i want to use CST studio 2013
but but
i have not experience with cst :( :(
can any one guide me , or offer me pdf for cst
thank you
hello
please , i have a problem , ads display me (not a project directory) wheni try to open this project
the problem that this porject exist in my directory , and i worked normally before , and today when i want to open this project , this message is displayed!!!
can you help me?
thank you
hi.
please , if we want design patch antenna in (*) fr=5.8 GHz , epr=2.2 ; h=1mm
me , i found
length (patch)=16.8984mm
width(patch)=20.4458 mm
the inset feed point distance (for adaptation)=5.193mm
i use transmission line model for design patch antenna!
but
in a publication , they found...
please , tell me
,how do you do, to calculate the dimensions of the EBG structure (for example , width ).
to start the design of the structure , on which you are relying on what?
you make me afraid with your doubts!!!
these formulas are for an initial design ...
if not, tell me how to have an initial design of the EBG structrues.?
About a diagramme of dispersion , i dont know how to have this diagram with (this modelisation)
but there is a direct method
extracting a s-parameter between 2 ports placed...
I followed these logical steps :
1-modelisation of EBG (mushroom )with LC filter give frequency
\[{f }_{ r}\]=\[\frac{1}{2.\pi }\].\[\frac{ 1}{\sqrt{L.C } }\]
\[{f }_{ r}\] of mushroom like will be the same that operate patch antenna!.
2-we can calculate L(inductor) , and so we can have...
ok than u polar
I give you a simple matlab program
you give (gap) it calculates (width) EBG
but i obtain undesirable results!
trying to see may be something you can do
hi!
poor MoMentum!
yes
I have not found an application of EBG structures(mushroom like) that uses this nice software, why?
i dont know!
also
I decided to use MoM, how we can extract the phase diagram and the dispersion diagram, we can extract them with MoM?if yes , how do this?
thank u...
thak you...
in formula of capacitance (C)
what is \[{ \cosh }^{ -1}\]
is there
argcosh : reciprocal function
or
only
\[{ \cosh }^{ -1}\]=\[\frac{ 1}{\cosh }\] (inverse !)
thank u for ur pdf polariza
forumlas are :
but
if i want to stop frequency range [f1-f2].
i can calculate L (inductor)
i have BW (band gap frrequency that i want to stop ), the capacity C(capacitor) is pulled
finally , i cant calculate gap (g) and width(W) because there are the 2 unidentified variable
please...
1- I found formulas for mushroom like ebg , if it is considered as a filter LC
band width of ebg bw = 1/n (sqrt (L/c) n:impedance free space
and L has its forumule also C (capacity)
can be based on its formulas very simple for design ebg mushroom?
2-for array patch application , ebg is used...
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