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Re: Rat-race Design
Hi all,
i am working at Rat-race coupler and i have a problem in calculation raduis of the ring in ADS design, i saw that it should be squre(2)Zo but i think it's not correct!!!
i attached the figure of design
Hi all,
if you want ot use ADS to calculate Zoe, Zo0, go to Tools, LineCalc, for example type MCLIN for coupled line & ID MCLIN_MCLIN_DEFUALT, put your W,S,L and push Analyze.
If you don't want to use ADS, there are many ways to calculate Zoe, Zo0 depend on type of your BPF and i attach in word...
Hi Bassa,
That is very kind of you and i see that you make a lot of helpful for helping the students in this domain, so thanks again but really i finished my project and exam also, every thing is ok.
See you
Hi,
first, your circuit should be near from the picture that i upload.
You have MCFIL and the other stubs for matching and prevent DC short.
To calculate you parameter:
1- open Tools- LineCalc and choose your type stub, put your parameter, example :
to calculate W for MLIN, put Z0=50 ohm and...
Hi everybody,
i have a project oof wireless communication for simulation Alamouti scheme by QPSK modulation and AWGN, RELEIGH channel and i need the file "Alamouti work" from the website www.pudn.com, so if anybody has an account on this site and can dwonlaod this file, i will be very thankful...
Hi All,
i have a project for finding the amplitude and distances of an 7-elements array with a 20 dB side lobe level.
i have the basic code in matlab and i need to determine the assignment of antenna.
i choose 3GHz as the work frequency and i use the momentem method.
function...
Hi all,
I have a project of simulation diversity schemes and i need simulation of flat Fading channels by Rayleigh distributed.
i use QPSK modulation.
thx
I posted my project in this link:
Please just take the final file(.PDF), so also i share you your opinion about my parameter of momentum but i put it by defult and i take Momentum (without RF Mode) - simulation - s-parameters-simulate
Sweep mode:adaptive
sample point limit: 15
At any cases...
thank you for your advice but that doesn't solve the probleme.
In fact, i have good result befor making momentum and you can notice that my first figure at 4GHz is perfect and in the momentum it will be good at 3GHz.
Hi all,
I have a project of design Amplifier at 4 GHz in ADS and when i made DC_BLOCK I had a good result for S11&S12 but when i simulate it by Momentum i had a bad result, so i don't know where is the problem.
you can see my numbers.
thx
Hi,
that will be very kind of you, and i wait the substrat number from the technicien.
the project is design amplifier by transistor MESFET in high frequencies in three steps:
1- DC block
2- Stability and matching
3- Measuring and layout
So i will provide you with all information as possible...
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