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Mws Ground

25 Threads found on edaboard.com: Mws Ground

how to model a ground plane on CST MWS

I am new to CST mws. I want to model a ground plane as part of my simulation. Is it correct that I model a brick with material copper as a ground plane ? also I don't know what should be the height of plane? I know the width and length, but I don't know what should I enter for Z? Can any one help me with this?

scanning plane wave excitation to obtain the phase/magnitude information in CST MWS

Hello I have an array of 4 monopoles with an ground plane. I want to use a wave plane excitaion to get phase and magnitude of each antenna by scanning the plane wave in 360°. I don't know how to do it in CST mws. Someone can help me please? thanks you

CST MWS discrete port on ground plane

Hello all, I need some help/suggestion with my design in CST mws. I have my structure with several lumped elements (inductances and capacitances). I thought of directly using the S-Parameters of these lumped element values directly provided by the manufacturer instead of using the static values. For this, in general, we define one discrete port

Decreasing Mutual Coupling

Hi, I am designing a dual feed, square patch antenna for 60 GHz applications. How can I decrease the mutual coupling between the two waveguide ports? I am using CST mws. Thanks

Adding finite ground plane to quarter-wavelength monopole antenna

I have designed a monopole antenna for 30 MHz with length 3m and radius 0.01m and waveguide port in CST mws. For adding the port, I used teflon around monopole antenna upto the height 0.05m. When I add a ground plane (PEC) of radius 2m and thickness 0.002m below the monopole antenna it gives the following error:- "Port 1 is inhomogeneously fille

Monopole Antenna with ground plane infinite in CST

If your model is an antenna, you should set the boundary conditions to "add space" in all dimensions. You can see the setting of antennas in the examples of CST (Driver that installs CST ==>Program Files==>CST STUDIO SUITE==>Examples==>mws==>Transient==>Antennas).

coaxial feed in CST MWS

Hi guys, I am designing a monopole with two cables attached to it. The ground plane is on top of the substrate and i'm hoping to feed the monopole by a coaxial feed from the bottom of the substrate. I have tried 'picking the face' of the bottom of the monopole and creating a waveguide port, however it comes up with the following message: 1

How to design a helical antenna in CST MWS with minimum back lobe radiation pattern?

i am working on mode converter..i have two issues as follows:- 1.how to give a TM01 mode to a circular bent waveguide in CST microwave studio..? 2.how to check on the output different modes coming out of circular waveguide in cst. The dominant mode of circular waveguide is TE11. i want to plot a graph with fraction

Microwave Filters for Communication Systems

Dear Prof I am Mr mohammed Chetioui, I am from Algeria. I am preparing my master in Bandpass filter using Defected ground structure with CST mws. I read your paper, and I am interested in filter DGS but I am struggling in some problems which are : I need the document ''Microwave Filters for Communication Systems - Fundamentals, Design and Applic

Waveport problem in CST MWS 2010

I am trying to design a very simple probe-fed rectangular patch antenna. But I am face difficulties when I am try to run the simulation. This is the error message I get: "Port 1 is inhomogeneously filled with the first 3 mesh cells. Cannot start solver". Kindly find attached the cst file of the antenna design and advise me of what to fix.

Misunderstood circular sector patch antenna results

Hi all I am simulating a circular sector patch antenna in cst mws; it is excited by a waveguide port defined at the beginning of a microstrip line (see image)52786 Now what I can't understand is why if I reduce the dimensions of the substrate and ground plane, not only the total efficiency, but also the radiation efficiency fal

how to model boundary condition for partial ground plane (Zmin) using CST MWS??

hi, im trying to design a 900Mhz feed line rectangular patch antenna with partial ground plane using CST mws,, i need help regarding how to model the boundary condition. What should i put as the Zmin?? is it 'Electric (Et=0)' ?? or 'open'? or 'open (add space)'? ps- currently im using Zmin= open (add space) because it doesn't show any error whe

Balun and waveguide port trouble in cst

Hi everyone i designed a microstrip balun in cst mws but how can I draw waveguide port for more accuracy. I read waveguide port section in help but in my design ground area so closed to feed line please help

Help regarding errors during simulation using CST MWS

I'm a MTech student, new to CST. I'm working on a microstrip antenna, to be fabricated on curved(cylindrical) structure. So, I intend to develop a palnar patch on a flexible laminate and mount it on the cylinder. Now to study the effects of curvatures, I will be running the simulation for cylinder of different radii. Now the problems I'm fa

How to setup Ground Plane when simulating differential ant?

I am an newcommer to CTS mws and this kind of microwave simulating stuff. Now I am trying to design an differential antenna for an 2.4G RFID chip. In single-end antenna feed mode, I simplely connect the excitory port pin to ground and ant feed point, but for differential antenna, I connect the port directly to antenna's dual input. How should I

conformal patch antennas in CST

hi how to model conformal microstrip patch antennas in CST mws? i was tryin to model a cylinder and then cutting it . but after that i am stuck up how to proceed with the design of ground plane . subsstrate and finally patch anyone have experience of modeling non planar patch antennas would be of great help regards

S-parameter- what sort of reference should I implement?

Dear all, I have a BGA package with solder bumps on top and solder balls on bottom, which belong to power, ground, and signal nets. However, I would like to treat all of them as signals since I want to connect the S-parameter block in the circuit schematic with other models e.g. RDL, PCB. I did my simulation in CST-mws. The question is, what

Feed for Single Arm Spiral antenna in CST MWS

Hello, I have a problem with CST mws that how should i feed for Single Arm Spiral antenna without the ground plane. Does any one knows how boundary conditions are used in there? Thanks,

Coaxial feed in Feko design!

Does anyone experience coaxial cable feeding design in Feko? Let's say if I wanna design a coaxial cable undernearth the infinite ground plane and use the inner conductor for antena excitation! It is quite easy in mws, but in FEKO...:cry: Please share me any example or any advice! Thanks in advance!

How to maximize S21 for monopoles?

I am trying to simulate two monoples by using mws. First monopole is the transmitter and the second one is the receiver. Monopoles are fed by a coaxial cable. and there is no ground plane. I wonder if there is a rule of thumb for maximizing S21 given the inner and outer dimensions of the coaxial cable. for instance, is there a rule for the length o