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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, V**mag** and VPHS which is related to the **mag**nitude ratio and phase difference of the
input signals (VA1 and VA2 ) by the transfer **function**:
126313
The **mag**nitude ratio, |Z| and phase difference, _

Analog Circuit Design :: 02-23-2016 05:56 :: anushaas :: Replies: **1** :: Views: **581**

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 **mag**netic 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 **mag**netic holding force. If the (...)

Analog Circuit Design :: 12-02-2013 18:09 :: chuckey :: Replies: **3** :: Views: **557**

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 (...)

Analog Circuit Design :: 12-24-2012 08:16 :: talking :: Replies: **0** :: Views: **557**

import the data into microsoft excel, then use the rms error **function** of the excel software.

RF, Microwave, Antennas and Optics :: 02-18-2012 09:30 :: tony_lth :: Replies: **1** :: Views: **2897**

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
**mag**Cost = **mag**(s(1,1))-0.5 so (...)

Electromagnetic Design and Simulation :: 02-13-2012 10:01 :: odyseus :: Replies: **5** :: Views: **1983**

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

RF, Microwave, Antennas and Optics :: 01-11-2012 22:45 :: johnjoe :: Replies: **12** :: Views: **10948**

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

Digital Signal Processing :: 08-11-2011 13:33 :: LvW :: Replies: **5** :: Views: **1064**

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 !

Analog Circuit Design :: 06-01-2011 17:30 :: Heidi.Eissa :: Replies: **0** :: Views: **2095**

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

RF, Microwave, Antennas and Optics :: 02-07-2011 07:36 :: vinoth8051 :: Replies: **5** :: Views: **10132**

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

Analog Circuit Design :: 09-30-2010 16:38 :: ahmed osama :: Replies: **18** :: Views: **5374**

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

Analog Circuit Design :: 11-09-2009 15:35 :: LvW :: Replies: **3** :: Views: **2660**

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!!!

RF, Microwave, Antennas and Optics :: 05-17-2009 01:33 :: xanadu25 :: Replies: **3** :: Views: **2186**

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!!!

Electromagnetic Design and Simulation :: 05-17-2009 01:34 :: xanadu25 :: Replies: **0** :: Views: **1395**

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?

Electromagnetic Design and Simulation :: 05-15-2009 19:08 :: mahdieh :: Replies: **0** :: Views: **1320**

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,{

RF, Microwave, Antennas and Optics :: 03-20-2008 23:25 :: liletian :: Replies: **0** :: Views: **983**

hi what is the action of an RF power combiner?

Elementary Electronic Questions :: 11-05-2007 17:17 :: elec350 :: Replies: **2** :: Views: **1581**

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 (...)

RF, Microwave, Antennas and Optics :: 12-28-2006 14:28 :: biff44 :: Replies: **8** :: Views: **2100**

it will be easier if you search for power divider/spliter. it's the same **function**.

Elementary Electronic Questions :: 10-14-2006 07:37 :: rancohen_2000 :: Replies: **6** :: Views: **1507**

NO. of course not . From the FFT formula, we know x(n) is the **function** of phase and **mag**nitude. If the phase of x(n) is theta(n) and **mag**nitude 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.

Digital Signal Processing :: 05-25-2006 11:20 :: wwfhm2002 :: Replies: **3** :: Views: **2358**

hi
i ran your program in matlab 7 and it worked successfully.
i think error belong to "angle" because it is one of matlab **function**s.
use:
r = 1.2; theta = 10*pi/180;
ang = 0:theta:36*theta; **mag** = r.^(ang/theta);
polar(ang,**mag**)
grid
title('Polar Plot')

Elementary Electronic Questions :: 01-09-2006 05:47 :: hr_rezaee :: Replies: **5** :: Views: **20487**

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