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sriza85,
axial ratio AR gives a description of the polarization of the antenna, in particular between the two orthogonal field components in the far field. Now, for some antennas it is important that it is very low or below some thresholds within a relative large bandwidth. For example take a a...
Dear rf1008,
1) The CST transient-solver is extremely faster than the finite element if the structure does not have multiple resonances. For the design of the UHF dipole it is perfect and the speed comparad to a frequency solver is considerably better. If you start designing RFID coils at...
Dear rf_1008,
I used CST MWS for RFID antennas but some years ago I intensively used HFSS for other things. As you already know, the input impedance of the chip has generally a capacitive reactance. Because of that, the antenna itself must offer an inductive input reactance.
Firts of all, in...
Hi everyone,
I have a question about RADAR IMAGING with MIMO virtual arrays, who can help me?
How is a MIMO Radar used for imaging purposes? Does it need to make a beam scan like a phased array-based radars or is a single snapshot sufficient (considered that it builds MxN MIMO channels) ? I need...
In LTspice I cannot do much. I have to design a circuit using a foundry library which is only given for AWR and for this reason I would need to have the memristor model in AWR. I didn't find ready models for AWR/ADS. I have to check whether I can do it using APLAC (AWR) netlists.
Ivan
Thanks Keith, unfortunately that does not work in AWR Microwave Office, even removing the = sign. As I said, the netlist works under LTspice as it is now, also with the = sign. No matter in which format I save the netlist, .cir, .sp, or if I have the = sign, the import in AWR does not work...
Problem pspice model of memristor and import in ADS and AWR
Dear all, I am facing the problem of modelling a memristor. I found several spice models, in particular I am using the following one:
.SUBCKT memristor Plus Minus .PARAMS:
+ Ron=100 Roff=16K Rinit=10K D=10N uv=10F p=10
Gx 0 x...
Hi guys,
I have never used spice netlist before 'cause I am basically an antenna designer. Now I am facing the problem of getting a memristor model for circuit simulations. I downloaded LTspice and I imported both the codes that I found ind this forum. I tried to follow the istructions contained...
Dear all,
I am facing the problem of evaluating the INPUT IMPEDANCE of a slot inserted into a circular waveguide, which, as you know, it is different from Z11. The guide is terminated in one side with a wave port. At the end I have a two-port dev. As I used to do in HFSS, I wanted to define an...
Hi guys, I have a design in CST MWS. I am able to create the gerber file but I cannot find the way to create the drill file (NCD). The circuit has something like 500/600 via-holes. It would be impossible (and I am not that crazy!) to create the file defining each via , one by one, with another...
Re: How can i excite TE10 waveguide mode using Floquet ports
Dear psycrystal,
at the moment I don´t have CST, I´m waiting for the license... :D Anyway, you can upload your model, maybe I can have a look at it when I´ll have cst available.
Regards,
I.
Hi all,
I know that CST MWS offers a dynamic interface with ADS. I would like to know, if any of you has experience with this topic, if this interface is kinda bi-directional. I mean, let's imagine to have a 3D model in CST and to have ai input waveguide port and an output waveguide port. So, I...
ADS and EMpro manuals
Hi all,
I would be grateful to all of you could you upload everything you have in terms of manuals and guides (PDFs) for learning Agilent ADS and EMpro 2009.
Thank you all,
I.
Hi everyone,
I need for formulas to calculate characteristic parameters (charact. impedances, cutoff frequencies, etc) for rectangular coaxial waveguides and ridged rectangular coaxial waveguides.
Thanks in advance,
I.
te1,0
This is the result I get with a 30mil thick substrate by a rectangular waveguide simulation (only E-boundaries):
Looks closer to measurements!!!
Ivan
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