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32 Threads found on Cos Cos Theta
Dear fellows. I have to make M points in a circle with radius 0.1Rd 0.5R. I have the code for circle but not getting the meaning of 0.1d and 0.5d I have code for circle as follows. % Data n = 10; radius = rand; xc = randn; yc = randn; % Engine theta = rand(1,n)*(2*pi); r = sqrt(rand(1,n))*radius; x = xc + (...)
Hi, I'm trying to plot the far-field radiation pattern of a thin wire dipole antenna using the equation I found on balanis book(antenna theory, 3rd edition, section 4.5.2): E_{\theta} = j{\eta}\frac{ke^{-jkr}}{4{\pi}r}sin({\theta}){\int}_{-l/2}^{l/2}I_{e}(x',y',z')e^{jkz'cos({\theta})dz'} When the (...)
hi everybody, can anybody expalin how to make 3D polar radiation pattern in matlab? I am using UV plot where with mesh(x,y,z) command x=sin(theta)cos(phi) y=sin(theta)sin(phi) ans z=calculated gain all are NxN square matrix But I want to plot in polar form Thanks Hi, mns. This is my m-file for 3D radiation patt
if x=r*cos(theta) ==> r=x/cos(theta) ==> dr/dx=1/cos(theta)
If you see at the unit circle: 1. rotating by 90 degrees means swapping x and y axis (that is sin and cos), then sin(90+θ)=cos(θ) 2. rotating 180 degrees the waveform repeats with reversed sign, that means sin(180-θ)=-sin(-θ)=sin(θ) then the ratio sin(90+θ)/sin(180-θ) = (...)
88856 Hello,every one I am trying to plot radiation intensity of antenna using the following code but it is giving me an error. please, help me PI = 4.0*atan(1.0); E = 120.0*PI; L=1; Io = 1; r=2; k=2*pi; theta=0:1:359; (...)
Hi TomJohn, Inphase and Quadrature components of a passband signal, s(t)=A*cos is I(t)+jQ(t)=A*cos(theta(t))+j*A*sin(theta(t)) as s(t)=I(t)cos(2*pi*fc*t)-Q(t)sin(2*pi*fc*t).
........ Is it possible to separate this function in a+ib form. Either through MATLAB or manually. M = sqrt(sqrt((16+2.23*sin(x)^2)^2 + 0.6^2)) ; theta = atan2( 0.6 , -(16+2.23*sin(x)^2))/2 ; a = M*cos(theta) b = M*sin(theta)
I changed the progressive phase excitation angle (beta) to 45 degrees on my dipole array, and I got huge gain (better than the endfire 32-degree phase at 0-degree scan angle). I am not sure what the 45-degree phase excitation angle corresponds to in scan angle (theta) as when I plug it in the equation beta = -kd cos(theta), (...)
You havnt calculated your power facctor? cos(theta)
Hi, I'm trying to generate waves of the form, p = a*cos(theta)*exp(i*w*t), where t is the time, w is the frequency and theta is just an angle. In my VI (attached), I used exp(i*w*t) = cos(w*t)+i*sin(w*t) and formed this using the Re/Im to Complex Function. And I used four different (...)
cn we able 2 find out the directivity in 2d plot of half wave dipole,....i got 8 shaped radiation pattern hw 2 obseve its directivity?? i hve given theta range from 0:pi*0.01:2*pi,.and electric field formula e=(cos((pi/2)*cos(theta)))/sin(theta) ,.i am doing in matlab If (...)
The power factor (cos(theta) where theta is the angle between the voltage and the load current)
simple imaginary to polar co ordinates a+jb=(sqrt(a^2+b^2))phase(b/a) tan(theta)=b/a, a=r*cos(theta), b= r*sin(theta) Hope that helps Regards Elchiquito
Hello I have a project to simulate radiation pattern of circular loop antenna. I have D=fn(theta,phi), and I do transform from theta,phi to x,y,z by these equations: x=D.*sin(theta).*cos(phi) y=D.*sin(theta).*sin(phi) z=D.*cos(theta) (...)
how i can plot an azimuth and elevation planes for E= sin(theta).*cos(phi) or E= cos(theta).*cos(phi) or E= sin(theta).*sin(phi) etc {matlab code } ??
In reflector antenna, usually we use horn as the feed. It has been checked that the radiation patterns of the horn can be simulated as a function: \cos^q (\theta) . The power q has been chosen at each frequency to fit the horn patterns. I already have the radiation gain pattern of one horn, I am wondering how to approx i
you have written \sin\theta=1 \int_0^\infty \psi=\frac{\beta d \cos\phi_m}{4\pi} if you use the icons of the LATEX menu then the code looks like this \sin\theta=1 \sin\theta=1 @Gulson some of the ico
i need a vhdl program to solve the given expression. here is the expression: PG1 = ((2*pi)/λ)*dh*sin θ * cos θ the values are 2*pi = 2*3.14 λ = 7.5cm dh = 4.28cm sin θ = sin 45 degree cos θ = cos 30 degree and the result shoould be PG 1= 125.76 degree
This is a real function. Only three terms: m= -1,0,1 ==> Σ(...) = 1 + 2*cos(pi*cos(θ))
hi it possible plotting far field in function of sin(theta)cos(phi) and sin(theta)sin(phi) instead of theta and phi?
hi it possible plotting far field in function of sin(theta)cos(phi) and sin(theta)sin(phi) instead of theta and phi?
Well, first you just need to define the array factor for circular array. LMS and RLS basically give weights that wil help in removing interference, noise or whatever. The array factor for a Uniform circular array is AF(theta, phi) = exp(j*(2*pi/lambda)*radius*sin(theta)*cos(phi-phi_n)) theta is elevation, (...)
1/120*pi^2 integration 0 to pie [(sin(1.2420*10^7)*costheta)/cos^2 J0(k0L sin θ)sin3 dthetaI can't get the above at all. Write correctly with using (), and *. What is "k0L" ?
Hello, I am having a major issue with the far field excitation source file formatting. I cannot seem to generate a simple cos^q(theta) pattern file and need to get support from CST for this to see if they can supply someone with a cos^q(theta) pattern file. So, does anyone have (...)
Hello everyone, I would like to know if there's a software/matlab code I could use in order to convert the pattern of an antenna element to a formula that can be plotted in Matlab. For example : % element pattern of dipole antenna g(theta) = (...)
plz find the attachment of a cordic verilog code......someone can understand that code and tell me how i can use that code in finding sin and cos.....actually i have to use below loop in verilog for(theta=0;theta<100;theta++) { (...)
This will make final equation shorter cos(180-x) = - cos x
hi, how to write a program forcalculating cos angle(cos theta) in 8051 assembly language thank you
epilot, Adding to comments by Mansour_M: Measure the phase shift between the voltage and the current. Let Za = the value as obtained by Mansour_Ms method. Let theta = the phase shift. Then Z = Za cos(theta) + jZa Sin(theta). Regards, Kral
hi can anyone help me solve this equation please I= ∫sin×(sin Θ)(sinΘ)(sinΘ)dΘ/cosΦ with the limits between 0 and Π thanks
I use the sin/cos look up table ip core. It has the name in my design. The width of the theta input is initially 4 and the design works. When I change the width to e.g. 6, the following warnings appear: Regenerating IP... WARNING:sim:89 - A core named already exists in the output directory. Output products (...)