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Questions related to Antennas
We are using the CST Studio Suite 2022 version. We are working on the Antennas - Time Domain section. The results we expect to obtain do not actually correspond to the simulation results. CASE...
16 March 2023 5,024 7 View
How to connect the SMAFEM connector in ADS. I try to connect it directly with my design and run as momentum but it get joint with my design like a feed rather than connector. Than I try with fem...
15 March 2023 6,967 1 View
As we know EM waves are widely used in our life. One of the common use of these waves is in the kitchen and specially microwave.is it really Carcinogenic?
12 March 2023 1,843 19 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, I have an array antenna with multiple ports in CST and need to plot the gain of the combination of all ports. I have combined the far field results at the resonance frequency but I don't...
11 March 2023 4,176 3 View
How can we make a pin diode in ON/OFF state based on the values of RLC. I have studied that in ON state RLC operates in series and in OFF state it operates in parallel circuit. I am attaching the...
08 March 2023 7,734 7 View
how to calculate the length of feedline or transmission line of microstrip patch antenna? Is there any particular formula?
26 February 2023 2,780 2 View
I specified the expression of far-field pattern in CST and simulated it, but I can't see the electric field distribution on the object. Whether the electric field distribution can be observed when...
15 February 2023 5,171 4 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
i do a research about biosensors that it detecte the tumor in humain body so i made a antenna in 38ghz frequency with 30 dB return loss but when i put the tumor and the skin layers in the...
11 February 2023 6,517 2 View
I have S11 parameter only in my design, as I have a single wave guide port excitation . How could I extract eps and mu from S11 in CST? or by matlab coding? I appreciate your help .
10 February 2023 3,641 2 View
Dear colleagues, could you suggest the most relevant review articles on MIMO radar technology , as well as classic textbooks on the basics of this technology?
25 January 2023 2,542 3 View
I am working on a metamaterial patch antenna and yesterday i got that error message "Illegal usage of S-Matrix, No impedance found". Anyone could help that issue whats related and how can ı fix...
12 January 2023 6,230 0 View
I am designing a patch antenna with coax feed for 3GHz frequency. While assigning radiation box the height of the box needed to be assigned I found it should be above lambda/4 which was around...
07 January 2023 484 4 View
Hello everyone. I am doing a CFD simulation for waste heat boiler and simulation boiling in steam drum. I used ANSYS Fluent to perform the simulation. However during the calculation section. I...
02 January 2023 4,625 4 View
CST I-solver: Why the normal type materials are not meshed in I-solver? it says just PEC materials are considered for meshing.?
01 January 2023 411 3 View
Hello everyone, I am trying to simulate the s parameter in HFSS for an spherical ice particle. But when I am clicking to result section it is not showing 'create modal solution data report is not...
30 December 2022 1,647 0 View
Can anybody recommend me some books or materials for designing EBG structures.
28 December 2022 8,174 3 View
I have an EBG structure which resonates at 2.3GHz and 4.8 GHz. But I need to change the frequency of resonation to 7.5GHz. I achieved 7.2GHz resonation with an S11 of -10dB and S21 at -3dB (this...
26 December 2022 3,904 4 View
I designed an antenna by randomly selecting the L-shaped slot on the patch and ground plane. But is there any method by which we can select a specific shape of the slot to obtain multiband...
18 December 2022 6,946 7 View
As these two tuner types (DVB-T and DVB-C) are always integrated into one and cover the same frequency range, is the conclusion that every DVB-T tuner is capable of scanning DVB-C frequencies and...
13 December 2022 3,353 1 View
I have not directly studied Hauwking's radiation, I only know what my teachers told me about it and which is constantly repeated in popular science texts. It says: If a pair of virtual particles...
02 December 2022 5,183 15 View
Hi Dear CST microwave experts and users , I want to put a transeiver antenna and e receiver antenna in Gaustav voxel human body for channel modeling study . I noticed that the voxel body tissue...
29 November 2022 9,982 1 View
I am new to simulating with HFSS and I am using the Ansys Electronics Desktop 2019 R1 version. I have as a final project to simulate (and fabricate) a rectangular array of a 2x1 patch antenna. As...
25 November 2022 4,675 1 View