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48 Threads found on edaboard.com: Matching Source And Load
Impedance matching and filtering are different purposes, although a LC matching network has filter properties and a filter can be designed to provide matching of different source and load impedances. But a matching network that implements (...)
This ought to be pretty much like (or identical to) standard LVDS (TIA-644). JESD204B specifies source and load side impedance matching, like other high speed standards (SATA, PCIe). Regarding driver impedance, JESD204B is different from standard LVDS which doesn't (...)
Hi friends! I am designing a matching network between Known source impedance(50ohm) and known load Impedance(2Mega ohm). I want to know how to find the values of Inductor and capacitor. If anyones kindly share your knowledge.
Hi friends! I am designing a matching network between Known source impedance(50ohm) and known load Impedance(2Mega ohm). I want to know how to find the values of Inductor and capacitor. If anyones kindly share your knowledge.
Hi, I have seen the below formula for calculating transmission line impedance and electrical length for matching a load RL+/- jXL to a source RS+/-iXS. Is this formula valid for all of the combinations of load and source. Sometimes I am getting wrong answers with this (...)
There are numerous plausible explanations for gain compression for a device without matching networks, with the most likely one being that the conduction angle is decreasing. To get optimal performance, expect to do load and source pull simulations, possible with harmonic load pull.
Your S11 is also too bad.. But your circuit has no impedance matching network ? How it will be improved ?? Check the intrinsic input and output impedances of the CasCode only first then apply proper matching networks to match to source and load.
Since the the matching circuit has been defined, why don't you implement this on your schematic ?? I presume that you have already defined optimum load and source for this PA.So, design the matching circuits that matche these impedances to 50 Ohm standard port impedance.. I didn't (...)
It does not matter whether u treat your loop antenna as the source or the load with respect to the impedance matching task, though your loop antenna looks more like the source since it is used as the receiving antenna.
Hello, I am new in IC design. I am trying to make an amplifier using Cree CGH40010F. In datasheet, there are some load and source impedance values up to 3.5 GHz. But in my design I need the impedance value at 4 GHz to construct the impedance matching blocks. How can I find that impedance value? Which type of simulation (...)
matching at both line ends and electrical length has to be considered.What's the actual circuit?
I believe you can model a PV panel as a voltage source with a resistor in series. Anyway it's a start. Example, if it is rated for 12V at 3A, then it can be modeled by a 24V source and an inline 4 ohm resistor. If you attach a 4 ohm load then it gets 12V at 3A, and that is also your condition of maximum (...)
In general we want all power from the source to get to the load. matching means that source and load resistance should be equal (for sinusoidal signals, conjugate) to meet the best transmission condition.
You can use a directional coupler, it measures forward and reflected wave. By nature, it has a finite transmission line length and a characteristic impedance. But if it's short related to wavelength, it won't cause large changes to the impedance matching, presumed the characteristic impedance is roughly in the same range as the (...)
I made some experiments on L-network Z matching, first I try the circuit without any match (R1 is source impedance and R2 is the load impedance), and got the following result: the voltage gain = -0.828 dB @ 100MHz I repeated the experiment again, but this time
lots of controlled impedance strip lines. Prop delay must be a controlled impedance for analog broadband, otherwise, most people try to get the delay out of the chip ;) Normally snake shaped tracks are used to offer proper delay for matching bus signals.
Re-read the conjugate matching concept, Conjugate matching between source impedance and load impedance means the maximum power should be transferred from source to load, the efficiency is 50%. No, if correct ideal matching is transmission loss 0%. if the (...)
hi, i want to match Z-source and Z-load impedance at 2GHz which are present in the attached file, using ADS Smith chart utility. I am confused about the behavior of this utility. At 2 GHZ Z_load is 19.4+j*39.9 ohm. It is provided in the source and load termination (...)
I'm creating a narrowband matching network at 10GHz using segments pi networks. I was able to match the load to my 50ohm source using ideal caps/inductors from the analogLib library. My next step is to replace the ideal ind with one from the gpdk045 library. I used the Z parameters to characterize the inductor at 10GHz (...)
back to basic always. You know how to do a single step (lamda/4) transition, since you know the lamda/4 impedance matching formula, Zt^2=Zo*ZL So same thing for multi-step transition, we can still choose lamda/4 for each step, and make the matching from load to the source. If you are lazy to calculate (...)


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