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47 Threads found on edaboard.com: Wilkinson Resistor
I don't see the purpose of wilkinson power divider for an antenna array. Most designs are using simple power dividers.
Hi everybody. I am designing a wilkinson Combiner to sum two signals in phase of 75 each, in 6.3 , in AWR software. I selected an isolation resistor of 60, but in the datasheet mentions 2 of parasitic capacitance. Therefore, i added a 2 capacitor in paralell to the resistor in the simulation. That capacitor, degrades so
Hello everybody I am designing a wilkinson divider in HFSS. 135254 In HFSS how can we make /edit incomplete circle of width 70.7ohm (say 1.846mm for 5.2 GHZ) and incomplete circumference of half lambda (λ/2) for inner and outer circumference. Can it be drawn by using equation by curve. Please help if you can. T
Doesn't make sense not using a terminated port in a coupler or a splitter. For example in a wilkinson splitter if you don't terminate one of the divided ports in 50 ohms, the insertion loss on the other port drops from about 3.3dB to about 0.3dB. But the isolation of the splitter also decrease from about 35dB to less than 6dB.
Hello everyone. I want to design a wilkinson Power divider at 3GHz in HFSS. But I am getting problem in designing 100ohm resistor between the output ports. What should be the dimension(Length width and height) of the sheet for lumped port
I designed a 3-Way equal-split wilkinson Power Divider, but S11 is somewhat large, how can I decrease its value to be -15 dB? 129267
Hi all, I am designing a wilkinson power divider/combiner and I am getting an off-centered matching/isolation behaviour. Phase plots show that the divider gets an effective 180 phase shift between port 2 and 3 at around 160 GHz. 128779 Any ideas about what could be the main reason for this shift and how to improve
hi, iam doing project on wilkinson power divider and going to fabricate it in microstrip.i have found out length and width of quarter wave transmission line.but to represent transmission line in circular form i need to know radius formula.i have searched for formula but couldnt find out the right one.
Hi first time posting on this forum. as stated by the title, I am curious about power rating calculation of the termination resistor within the wilkinson divider/combiner. For example, when used as a 2 way combiner that could handle 800W output power, VSWR=1.2 is there equations that I could use to calculate the maximum power rating of th
For example i want make wilkinson power divider in shape of ring. But it can be any shape, for example two 70 Ohm quarterwave lines with 100 Ohm resistor at the end. I can calculate this microstrip ring radius, ring consist of two quarterwave arms, so total line length is lambda/2. This bending is only for reduced size of the divider, and identical
In my opinion an wilkinson divider without a resistor cannot be named wilkinson, but whatever else. Planar antenna arrays can use various dividers without lumped elements, and using on board phase shifters to get the desire phase change.
In the image attached can see an n-port wilkinson and the equations for the resistor and line impedance values, for various input/output port impedances. Check how the resistors are connected one to each other.
Good afternoon! Recently I've calculated WPD parameters. Then it was obtained simulation results of schematic circuit. Now I'm trying to create the structure in field representation, but simulation results are different. What can be the reason? please have a look on attached pictures. 101117101118
Hello, currently I'm trying to simulate a 100Ω thin resistor for a wilkinson power divider. Could anyone explain me in detail how to do it,especially how to determine the current line? Thanks in advance
Hi I see your point. A wilkinson divider has match at all ports and equal power split. However you need a 100ohm resistor to make the matching. Many patch antennas are just made on a single PCB without SMD assembly. This is cheap and easy to fabricate. But you are right that it is not the same. If you analyse the wilkinson without the (...)
hi I'm designing some high power combiner/divider for example wilkinson one.Because the divider is high power, I have to use high power resistor too.for this purpose I used ATC high power resistor.according to datasheet there exist some capacitance with this resistors and considering this value of capacitance the results (...)
In my design, I'm using the wilkinson divider as a 'junction' for tx or rx path. Why do you do that? Even with an "ideal" wilkinson divider, you will loose 3dB in TX and 3dB in RX direction. In TX mode, half of the power is lost in the resistor. In RX mode, half of the power is lost because it goes to the TX pat
Hello sir , For 4 way wilkinson power divider , I used the TFR as isolation resistor, I don't know ,how to find the thickness and width of TFR. I am getting the wrong values for both circuit and EM simulation for S- parameters for S(3,2) and S(1,1).I expect the reults as follows for both circuit and EM simulations. For circu
Your input legs are not constant impedance lines. All three legs going into your wilkinson should be 50 ohm microstrip lines (assumed because you stated you used a 100 ohm load isolation resistor). I'd recommend taking your input lines straight up and down, then go into optimal 90 degree bends, so they are square to the board edge. [ATTACH=CON
Hello kumarkaushal, Yes, when simulating using electromagnetic simulator you need to use resistor Film to simulate in EM simulator or use the EM Structure as subcircuit in a schematic & then add resistor... There is an example available in AWR MWO installation folder it is EM_wilkinson.emp, go through the same... Just you need to (...)