What are surface wave modes? How can we calculate them for a particular substrate to design microstrip patch antennas?

What are surface wave modes? How can we calculate them for a particular substrate to design the microstrip antennas? Kindly provide the mathematical expressions.

04 May 2018 7,401 1 View

Which type of port (excitation in HFSS) is suitable for simulating the antennas that possess thin substrates?

Giving lumped port and simulating the antenna having very less substrate thickness such as 0.1mm or lesser is difficult to simulate. In this regard I would like to know the best port method in HFSS.

31 December 2017 5,651 6 View

How the reflection coefficient parameter is mathematically related to arbitrary antenna geometry?

How can we establish mathematical relationship between S11 and arbitrary geometry?

31 December 2017 145 2 View

Why the Peak Gain Vs Freq. plot of the UWB antenna is showing the lower values at the lower UWB and gradually seems to be increases at higher UWB?

While simulating the UWB antenna, usually it is found that the peak gain is found less (which nearly swings between 1-3 dB), and the gain seems to be increasing as frequency increases. Is there...

01 February 2017 3,770 5 View

What can be the extension size of the radiation box for a (a) resonant/narrow band antenna (b) for a wide band antenna (c) for a multi band antenna?

01 February 2017 9,770 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

How can I obtain a sine function along a path with known equation?

I have a symmetric airfoil with known equation. Now a sine function passes along the airfoil equation like following figure. I want to find the sine function in (x,y) coordinate system.

17 February 2021 1,594 12 View

Does learning mathematics exclusively improve cognitive abilities?

Teaching Mathematics at school to all students is commonly justified by the opinion that it improves their problem-solving skills and "makes them smarter" (whichever measure is implied by this). I...

15 February 2021 7,391 7 View

Can we help fellow mathematicians get free ?

https://terrytao.wordpress.com/2021/02/08/a-statement-from-mathematics-department-faculty-at-stanford-and-mit/ Terry Tao blogged about this unfortunate event. Kindly share among Mathematical...

08 February 2021 1,055 3 View

Theoretical computer virology ? is still alive ?

HI Everyone! I am asking to know by you, expert in cybersecurity and mathematics, if Computer virology (the one of Cohen and Andler) is still an active field of research. That research made in...

08 February 2021 7,613 6 View

Is there any research Mathematical perceptions depending on type of personalities?

My dissertation thesis is Perceptions of mathematical ceonceptions depending on Myers-Briggs Type Indicator personalities. It can includes methods of solving, understanding, imaginations of math...

07 February 2021 9,880 4 View