Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi drabos,
Can you please tell me how to find impedance, electrical length values for parallel LC circuit. I have LC in parallel and i have to design microstrip of that. I took quarter wavelength transmission line with short end. but what will be the value of impedance and...
Just now i tried maple to do this. and it works. Although Matlab have a function (plot:: inequality) for plotting inequalities start away. But unfortunately I dont have R2012a version of Matlab. Anyways thanks for suggestion. regards
Hi buds,
I am trying to plot 3D plot for expression : (-b^3+b^2+4*b*c-12*d-3*b-3 < 0) and 4*b^3*d-b^2*c^2-18*b*c*d+27*d^2+4*c^3 < 0 (three unknown variables). I basically wants intersection (overlapping region) between these two plots. Kindly recommendation me any software which will do this...
Default values for MLW=1825.08, MLL=14753.3, CLW=62.8349, CLS=171.14, CLL=7376.64. I used optimization to get the response shown in the above schematic. But that one is not at -10dB.
Thanks you so much Tony i am attaching my schematic. Kindly have a look. tq
Ps: I want to get -10 dB ripple level in passband. There is a expr in ADS goals say ripple(dB(S11)) may be this one helpful to get it, but i dont know how to set it.
Dear Tony, thanks for suggestion. I am attaching the the results of my ADS simulation. Can you tell me how to equalize the ripple level at -10 dB, what will be the Expr for goal. which optimization technique is better. thanks
Result https://obrazki.elektroda.pl/1_1311559213.jpg
thanks for reply. I got that part. but how to make it equal ripple in whole pass band. We have to set some condition in goals, but i dont know what condition?
Hi guys,
I have a problem in ADS optimization. I want to know how to write a goal in case of equiripple in whole pass band. Let say i want my S11 to be at -10dB and i have five transmission poles in pass band.
thanks
Hello all,
I am trying to design Filter in HFSS with a bandwidth 4 to 9.7 GHz.I need help regarding my design. I am optimizing my design but it give me errors
( [error] Unable to save current mesh data for simulation: Setup1 (5:05 PM May 11, 2011)
[error] Unable to save current...
Hey jallem hope u r doing good. I have a question about the design that what is the thickness of copper. and also why you assign radiation to vacuum box. I think PEC is only for ground. kindly reply me. regards.
I am trying to design UWB filter 3.1 to 10.6 GHz bandwidth. Center frequency at 6.85 GHz. I have to optimize my design due to the limitations of parameters(> 250 microns). I want my S11 response to be equi-ripple and <= -10dB.
In defining goals how I put my these conditions over the frequency...
My bandwidth is 7.5 GHz with center frequency at 6.85 GHz. We have facility to design 250 micron and above. I have found these conditions with ADS line calc.
30000/Height(mm) > Freq(MHz)
18 > Er > 1
10 > Width/Height > 0.1
10 > Spacing/Height > 0.1
metal thickness < 0.1*Height and < 0.2*Spacing.
THANKS for reply. Well i am trying to get UWB frequency response. so if i change my substrate hight and microstrip thickness to get the allowable physical dimensions, it will distort my response. Any idea how to manage width and spacing greater the 250 microns while my response is not changed.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
