http://www.jyebao.com.tw/files%20download/RG%20TYPE.pdf
Belden Coax Cable
http://www.belden.com/products/catalogs/mastercatalog/brilliance/upload/06Coaxial_Cables.pdf
Times Microwave
Good Handbook with Technical Notes and Formulas
http://www.timesmicrowave.com/products/tl14/downloads/tl15_catalog.pdf
...
Saturday, November 2, 2013
Wednesday, October 23, 2013
Lecroy Papers on Jitter Analysis
http://cdn.teledynelecroy.com/files/whitepapers/designcon2009_lecroy_signal_integrity_measurement_in_high_bit_rate_systems_presentation.pdf
http://www.ece.ncsu.edu/asic/ece733/2009/docs/Jitter_Tektronics.pdf
http://cp.literature.agilent.com/litweb/pdf/5989-3206EN.pdf
Martin Mil...
Saturday, October 19, 2013
Sunday, October 6, 2013
Links for filter design and transformation
http://www.ittc.ku.edu/~jstiles/723/handouts/Richards%20Tranformation%20.pdf
http://course.ee.ust.hk/elec344/lect31.pdf
http://home.sandiego.edu/~ekim/e194rfs01/filterek.pd...
Tuesday, June 25, 2013
What is Skew?
Skew is defined as the difference in propagation delay between two or more signal paths.
Skew is of greatest concern between two conductors of a differential pair.
If both path lengths aren’t matched precisely, skew in a differential pair can lead to increased Insertion Loss, Impedance Mismatch, Crosstalk and EMI.
Low skew between multiple paths can be important in a parallel...
What is Nyquist Frequency?
http://www.dnr.state.oh.us/tabid/8170/Default.aspx
Nyquist Frequency
The Nyquist frequency is the bandwidth of a sampled signal, and is equal to half the sampling frequency of that signal. If the sampled signal should represent a continuous spectral range starting at 0 Hz, the Nyquist frequency is the highest frequency that the sampled signal can unambiguously represent.ExampleIf a signal is...
Sunday, April 28, 2013
Thursday, March 28, 2013
FFT komutu kullanarak matlabda basit DFT
clear all;
for n =1:20,
sign1(n)=0.5*cos(2*pi*n/10); % transfer edilecek sinyal
end
XK(1:20)=0;
for k =1:20
for n=1:20
XK(k)=XK(k)+sign1(n)*exp(-j*2*pi*n*k/20); %matrisle transfer et
end
end
%using fft command
XK2=fft(sign1,20); %fft komutu kullanarak transfer et
XK2(1)=[];
stem(XK); %cizdir
plot();
stem(XK2) %cizd...
Wednesday, March 27, 2013
Great Windows tools
http://rainmeter.net/cms/Final25
http://www.infoworld.com/d/applications/top-15-free-tools-every-windows-desktop-063?page=0,0
Microsoft synctoy 2....
Tuesday, March 26, 2013
Thursday, March 7, 2013
Simple DFT using FFT command in matlab
clear all;
for n =1:20,
sign1(n)=0.5*cos(2*pi*n/10); %sinal to convert, f=10 Hz
end
XK(1:20)=0;
for k =1:20
for n=1:20
XK(k)=XK(k)+sign1(n)*exp(-j*2*pi*n*k/20); %convert with math
end
end
%using fft command
XK2=fft(sign1,20); %convert with command
XK2(1)=[];
stem(XK);
plot();
stem(XK2)...
Saturday, March 2, 2013
Simple Fourier Transform with Matlab - More Accurate
% SimpFourierTransform2
clear Q, f;
f=14;
h = @(x,y) cos(2*pi*x*f).*exp(-2*pi*i*x.*y);
mintime=-10;
maxtime=10;
for f=1:20;
Q(f) = quadgk(@(x)h(x,f),mintime,maxtime);
end
stem(round(abs(Q)));
%stem(abs(Q...
Simple Fourier Transform with Matlab - With Plots
% SimpFourierTransform1
clear Q, f;
f=3;
h = @(x,y) sin(2*pi*x*f).*exp(-2*pi*i*x.*y);
mintime=-1;
maxtime=1;
tim1=linspace(mintime,maxtime,1000);
figure()
subplot(2,1,1), plot(tim1, real(h(tim1,f)));
title('Real Part of Integrated Function')
xlabel('Time (seconds)');
ylabel('Magnitude or real part');
subplot(2,1,2), plot(tim1, imag(h(tim1,f)));
title('Imaginery...
Simple Fourier Transform With Matlab
% SimpFourierTransform1
% Simple sin function with a frequency of 10 Hz, sin(2*pi*t*10)
% Multiply the function with basis transformer and integrate for a time interval
h = @(x,y) sin(2*pi*x*10).*exp(-2*pi*i*x.*y);
for f=1:20;
Q(f) = quad(@(x)h(x,f),0,2);
end
stem(abs(Q))
...
Friday, March 1, 2013
Simple Integral With Matlab
%simple integral for notation
f = @(x) sin(x)./x
Q = quad(f,0,pi)
%another code to define a function and plot the result
f = @(x) sin(x)./x
t=linspace(-10*pi,10*pi,1000);
plot(t,f(t...
Thursday, January 31, 2013
Cool tools
http://www.linear.com/product/LT1302
Great circuit tool, model components they sell. Extensive librarires, nice graphs
PCB Artist from www.4pcb.com
Great board design tool, lets you draw whatev...
Friday, January 25, 2013
Thursday, January 24, 2013
third order intercept point
http://en.wikipedia.org/wiki/Third-order_intercept_point
http://www.dynamicsciences.com/documents/24/DSI600-ApplicationNote-ThirdOrderInterceptPoint-OH-18May.pd...
What's a compression point?
http://www.microwaves101.com/encyclopedia/compressionpoint.cfm
What's a compression point?
For a linear device, output power is merely a fixed fraction of the input power. This includes most passive devices such as connectors, cable, waveguides, etc. Nonlinear devices exhibit complex behavior when input power is compared to output power. However, most nonlinear devices tend to become...