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Questions related from Hassan Sajjad
Can anybody guide me towards a simulation software that can be used for designing traveling wave tubes? Any views about COMSOL multiphysics?
12 December 2017 10,032 2 View
I have a plane wave incident on a horn antenna and would like to measure the voltage at the port of the antenna? How do I go about it? Waiting for some input.. Regards,
04 April 2017 6,100 9 View
Hello, I have a confusion with assigning a port in HFSS. What should be the height and width of the port for printed antennas, lets say a patch antenna or any other antenna. When I keep the width...
03 March 2017 4,338 4 View
I am interested in designing a beam steering planar array and would like to know a few techniques to introduce phase difference. I know a transmission line of different lengths could be used to...
06 June 2016 4,844 6 View
I am working on patch antenna analysis using FDTD. I need to design a two element rectangular patch antenna array and would like to reduce the coupling between the two which would in turn improve...
05 May 2016 1,839 5 View
I am designing a simple pyramidal horn antenna in COMSOL without using symmetry planes. When I try to excite it using a rectangular port it says I need to activate the slit condition. I am not...
02 February 2016 1,919 1 View
I want to see the effect of free convection on a patch of water enclosed inside a solid (Calcite) when it is heated by a dipole antenna. Currently, I am simulating the antenna in a separate study...
11 November 2015 5,866 2 View
Hello, I have simulated an antenna in COMSOL. I got the radiation pattern and now I am interested in finding the 3dB beam width of the radiation pattern. Any suggestions? If it is not clear from...
09 September 2015 9,784 2 View
I am trying to model heat flow in a material using the Heat Transfer in Solids interface of COMSOL (5.1). I would like to include conduction and convection as well. Guidance needed for a new...
09 September 2015 1,415 5 View
I am trying to model heat flow in a solid material. I am using periodic ON/OFF of the Electromagnetic source (Antenna), via a rectangular pulse. The pulse is ON for 12 hours and OFF for 12 hours,...
09 September 2015 9,711 0 View
I am new to COMSOL and I would like to know how to find out the number of boundaries, edges and domains? How does COMSOL assign the numbering. For example, if I want to assign a material to my...
08 August 2015 5,887 2 View
I have to model a dipole antenna (2.4GHz) and then see the power transmitted by that antenna when it is inserted about 1000 meters down a hole. I would like to know the Specific Absorption Rate...
06 June 2015 3,446 7 View
Has anyone worked on SAR? How do we calculate it? Any good literature that you could refer? Thanks.
06 June 2015 8,700 1 View
