17 Questions 17 Answers 0 Followers
Questions related from John Jin
Hello, I have a 2020 CST simulation file that was simulated one month ago. I've updated my CST to 2023 and added a new component to my simulation. But CST shows me this error: Components X: Y is...
14 May 2023 5,418 2 View
Hello, I am doing sweep parameters in CST for my antenna simulation. As you know, during the sweep parameters procedure, the far-filed results are not available in CST and don't save and only the...
11 March 2023 2,382 7 View
Hello, Here are my settings for the phase center of my antenna. I need to know what are 1)The best values for Angular limit around Z' axis. 2)Phase center values in the left box? (0,0,58.45,...
13 February 2023 2,006 3 View
Hello, I have two antennas (modem-microwave communication- Mikrotik) and I need to set them in the line of sight of each other for good quality(Best SNR) when they are located in different places...
19 November 2021 1,403 3 View
Hello, I need to know how to to design Butterworth filter with different insertion loss values. Regarding butterworth(Maximally flat) formula or table, they are obtained for insertion loss 3dB. I...
12 October 2021 6,219 4 View
Hello, I will be grateful if you could see attachment first. Based on the symmetry (Follow the "For example" in the first page up to end), I need to know why S13 is not equal to S31 (or S41 and...
01 October 2021 1,077 7 View
Hello, Regarding the CST documentation "However, the occurring broadband error may be prevented and the accuracy of the S-parameters improved with help of the inhomogeneous port accuracy...
18 September 2021 8,559 0 View
Hello, I've attached my Bow-tie antenna-whose parameters is calculated by this site online calculator- project...
06 September 2021 1,246 6 View
Hello, I simulated a dipole antenna which is located vertically to the ground (the axis of antenna is z) in CST(Picture number 1). And the axial ration is calculated/plotted by CST as well(Picture...
24 August 2021 8,220 5 View
Hello, I was working with creating an antenna in CST but by adding a new material box above my antenna, I was faced with this error: The calculation domain is completely filled with metal (PEC)....
01 April 2019 4,624 3 View
HI all, I was going to loft two different faces but I have been faced with this error: Lofting Failed: face has more than one loop. I will be grateful if you help me.
23 March 2019 8,558 9 View
Hello, Based on my understanding for designing or analyzing an antenna radiation pattern, S11 and SLL are the most important parameters. However, I can't realized the role of E-plane and H-plane...
23 February 2019 1,004 36 View
Hello, I need to know why one of the famous solutions of the maxwell equation is called plane wave. Because based on the equation, should not it be a vector not a plane for example at t=0? what...
01 January 1970 4,258 1 View
Hello, I am an electrical telecommunication student who works on Antenna. I am very interested in IC design but I don't know how to learn it step by step. Do you mind to let me know the...
01 January 1970 4,756 3 View
Hello, I got confused when I've been face with different explanations about wave number and phase constant. Propagation constant=alpha+j Beta (Many textbooks, such as Balanis -advanced...
01 January 1970 8,442 7 View
Hello all, Based on a tutorial about meta-material I simulated the cell in CST software. However, some hidden aspects of this simulation is unknown to me. 1) Why did the tutor use waveguide port...
01 January 1970 2,959 5 View
Hello all, I am working on metramaterial these days,, and I got confused about Negative phase velocity and positive group velocity in metamaterials. I know how to obtain the equations but I can't...
01 January 1970 9,166 3 View
