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21 Threads found on edaboard.com: Function Mag
Hi, My circuit has a Gain phase detector that generates two output voltages, Vmag and VPHS which is related to the magnitude ratio and phase difference of the input signals (VA1 and VA2 ) by the transfer function: 126313 The magnitude ratio, |Z| and phase difference, _
The basic system is that if you apply a pulse to a coil, the motor steps 360/64 ~ 5.7 degrees. On removal of the pulse there is a magnetic holding force. The pulse must not be too short or there is not enough power to get the rotar to jump to the next mag, holding position, extending the pulse does increase the magnetic holding force. If the (...)
I trying to draw a mag/phase bode plot of my system as below. Sorry for poor drawing. X(w)/2 ------>(gain=1, phase shift = 0)----------> a X(w)/2 ------>(gain=1, phase shift = p(w))------> b Then, (a-b)-----> Y(w) Transfer function = Y(w)/X(w) = 1-e^(-jp(w)) Anyone who can help draw the mag/phase bode plot using (...)
import the data into microsoft excel, then use the rms error function of the excel software.
Hi all, I want to optimise a matching circuit to achieve mag 0.5 angle -97deg. I am having problems trying to get a cost function..I tried this.. mag = mag(s(1,1)) Ang = Ang_deg(s(1,1) AngCost = Angle+97 so if the simulated angle is -97, AngCost =0 magCost = mag(s(1,1))-0.5 so (...)
Hi, in this toolbar (left side) you will find under S-Paramer simulation a tool called VSWR. It automatically calculates the VSWR from s-parameters. For further information use help function. VSWR should be in ideal case 1 Regards
Under the precondition of linearity you are allowed to treat a sum of different sinusoidal inputs separately. Example: Vin1: cos(wt) and Vin2=j*sin(wt). Thus, according to Euler: Vin=Vin1+Vin2=exp(jwt). The ouput of a linear system also is a function of exp(jwt) and - in addition - it contains a phase shift exp(j*phi). You always can come back to
i design 10th order analog low pass chebyshev filter & i want to plot its group delay versus frequency. i've already plotted using bode command , the phase & mag. response & i know that the group delay is the negative of the derivative of the phase of transfer function but how can i plot the group delay on matlab ?? thanks in advance !
Hi dlock, You can get Axial ratio in HFSS by using these steps 1) Right click on Result -> Create Far Fields Report -> Rectangular Plot 2) In Report:new traces window select Axial Ratio (Availabel in 'Category'), select function such as db,mag, or ang_rad 3) In Primary sweep select Phi, and then select the angle such as 0,90 degree. (refer Scre
bode plot consist of two plot 1-the mag. plot which is drawing the mag. of the function vs freq. 2- phase plot which is drawing the phase of the function vs freq
Hi All, Is it possible to design the circuit with given transfer function with all coefficients and mag and phase plots? Thanks in advance. Ashutosh Yes, of course - but realize that in principle, you have to select one design out of an infinite number of alternatives (different circuits with different impedance leve
How do I get the mag and phase of gain as a function of frequency in HFSS? I'm defining and fixing Theta and Phi and when I sweep the frequency for calculating Gain, I get only the mag BUT the Phase in deg is always zero... How to resolve this? Please help!!!
How do I get the mag and phase of gain as a function of frequency in HFSS? I'm defining and fixing Theta and Phi and when I sweep the frequency for calculating Gain, I get only the mag BUT the Phase in deg is always zero... How to resolve this? Please help!!!
Hi if i want to determine variables of one design to obtain mag(S(1,1)) <=.11 what choose for cost function is suitable? i think in this case i should not delete frequency it true?
Spectrum=20*log(mag(IF_P-IF_N) +1e-20) #define new variable as output differnece IF_d=mix(Spectrum,{-1,1},Mix) #generate the spectrun output at frequency F2-f1?? IMD_d=mix(Spectrum,{-2,2},Mix) #generate the spectrun output at frequency 2*F2-2*f1?? V_gain_d=IF_d-Vinput_dB #gain of circuit at IF frequency(F2-F1) LOfreq1=indep(mix(LO_P,{
hi what is the action of an RF power combiner?
Well, if you have the transfer function of the antenna (S21 mag and phase to a receiving antenna), you can just do a fourier transform of that to see the time response. Of course, the bigger the simulation bandwidth, the more accurate the result will be. In other words, if you know the transfer function H(F) of the antenna, you can (...)
it will be easier if you search for power divider/spliter. it's the same function.
NO. of course not . From the FFT formula, we know x(n) is the function of phase and magnitude. If the phase of x(n) is theta(n) and magnitude is mag(n), the you can try to change the mag(n) with random noise, and do IFFT, then you will get another time domain sequence. You can try it in Matlab.
hi i ran your program in matlab 7 and it worked successfully. i think error belong to "angle" because it is one of matlab functions. use: r = 1.2; theta = 10*pi/180; ang = 0:theta:36*theta; mag = r.^(ang/theta); polar(ang,mag) grid title('Polar Plot')