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That is exactly as you said ! (It is the system I need that is going to define it) You got the idea, it now needs a little brush......anyone qualified to mention which are the system parameters I have to consider ?
This is an study driven by the main and relevant parameters one should look for...
Sorry, you misunderstood the question.
I do not intend to know the intrinsic quality factors of an oscillator or even calculate them, is the other way aroud, what I need is to know which are the input parameters of a system (system requirements) responsbile for determine the frequency stability...
Does anyone knows a formula and the related input parameters in order to determine the necessary frequency stability of an oscillator ?
I guess it shall involve the operating frequency, multiplication factor (20 Log (N)), modulation skin, interference, allowed BER, etc, so that the required...
Dear All,
Can someone recommend me a complete PCB milling machine with USB interface for sell which is relatively cheap ? I target to design PCB's with double side layer for prototype SMD components over it (accuracy 20-50 mils).
I see a lot of PCB routing milling machines over the internet...
Dear all,
Can someone help me with the attached design made with AWR Microwave Office version 10 ?
I designed an oscillator in MWO software, so I first checked the circuit through a linear oscillator analysis (OSCTEST), by looking the loop gain and phase shift, then afterwards connecting the...
Hi Biff,
Thanks for all.
I guess your second post is more in-line to my thoughts.
I have done a calculation with a cable having similar characteristics to the RG-213 at frequency of interest and found out that a shift of 180 degrees is introduced by the dielectric cte (2.2) if the cable length...
Dear All,
Please see attached picture for your reference.
Can someone explain me why I get a input return loss at port one (S11) of about -20 dB when provoking a short in the port four (4) while if I short the port three (3) I get only about -6 dB ?
Would not be the case I am supposed to get...
Does anyone knows why isolation is needed when using one set of antennas (high gain donor and omni indoor), each other connected by a coax cable acting as passive repeater ?
Thanks
Some have fair understanding on the view of nature behavior or even are limited to classical teachings.
Similarly, when Veselago hypothesized that a material with a negative refractive index could exist (metamaterials might not have even been discovered at that time), many scientists initially...
Dear All,
Does anyone can show me a example of how to implement a customized lumped element in ADS which is independent of frequency ?
For example, I want to simulate an reactive element (jB) shunt to ground where the susceptance B is idependent of the frequency. So I imagine it requires to...
Dear Biff, Vfone and Chuckey,
Thank you so much for having shared your view.
Biff your example made to clearly understand the importance of a 3rd IF (in this example). Vfone thanks for detailed info, your statement about each mixer has its own image is also important, therefore it would be...
Dear All,
Alternatively to image rejection mixers (IRM) or image filter, many wide band radios working in HF (0 to 30 MHz) band adopt the use of a 2nd or even 3rd conversion (double or triple heterodyne conversion) claimed by some folks to supress the image frequency and adjacent interferences...
Hello Again,
I managed to obtain nice results of SSB phase noise from the XTAL oscillator (with high-Q), also accurate output power level and supression for the harmonics. It took me just few seconds to plot the results using the Harmonic Balance Solver from ADS.
The way I overcomed the...
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