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I designed a bandstop filter with a bandwidth of 60 MHz at a frequency of 1950 MHz. However, the filter is quite sensitive. Even when I enter the tolerances as 1%, the insertion loss shifts left and right by 50 Mhz. The production technology I use is not good. Is it possible to stabilize the filter?
Thank you, you are right. When I do tolerance analysis, there are huge shifts even for 1% tolerance. So, is it possible to realize the following specs in practice when I loose the s21 values?
new s21 specs:
1690MHz: -4dB
1710MHz: -10dB
1880MHz: -10dB
1900MHz: -4dB
I understand. So, is it possible to make a bandstop filter with a bandwidth of 170 MHz at the center frequency of 1795 MHz without taking into account the parameters given above?
Hello, I am trying to make a bandstop filter that suppresses between 1710 MHz and 1880 MHz.
I tried many different topologies but did not get any results.
What kind of topology do you think I can use to provide these values?
Thank you, but what I want to ask is what should be the feed amplitudes for each element of my antenna array? For example, while the feed amplitudes should be [1 4 6 4 1] for a 1*5 binomial antenna array, what should they be for a 3*3 binomial antenna array?
Hello, I am trying to make a 3x3 patch antenna array. But I need to feed the antenna array with binomial coefficients. For example, if there was a 1x3 antenna array, I had to feed it with amplitudes of 1,2,1 according to the 3rd line of Pascal's triangle. However, I could not understand how to...
I think because I use very low value capacitors (starting from 0.1 pf) and inductors (starting from 1 nF) in my designs, the filter is completely destroyed when I replace it with the closest values of the vendor models.
What is the minimum pF value of capacitors I should use to avoid parasitic...
I installed the Nuhertz filter solutions program. After entering my specifications, I added the s parameters file of the inductors and capacitors I will use. (I am using a coilcraft 0402 inductor and an atc 0603 capacitor.) However, all the program does is round up to the nearest available...
First of all, thank you for your advice. I am a university student and I am doing an internship at a company. I was asked to make a filter that meets these requirements. But it doesn't seem possible for me to do this. I will try loosening the requirements and lowering the degree of the filter as...
I was actually trying to ask that how to connect the elements together after designing the circuit with lumped elements.
My Design Plan:
1-Designing the circuit with ideal lumped elements
2-Find the elements closest to the ideal values from the vendor library and replace them with ideal...
Hello, I am trying to make a lumped element band-stop filter that stops between 470-690 MHz. I designed the circuit with ideal elements as shown in the figure, but in order for it to be produced, I need to insert microstrip lines. However, I need to connect 6 elements at the junction points...
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