Search Engine www.edaboard.com

Are you looking for?:
s21 lna , s21 lna , s21 lna , s21 lna

## X parameters (XnP) in ADS

Hello, I have the following XnP parameters for a lna. I want to simulate in ads the transfer of power (s21) and the IMR3 (harmonic simulation). I know how to simulate S param., with the data item touchstone etc. But with X param. I am never successful. Any advices? Thank you in advance! lna and X param:

## i have designed lna in agilent ads software.but in output i am getting s21 =(-105 dB)

i have designed lna in agilent ads software.but in output i am getting s21 =(-105 dB) and s11=(-0.05 dB).how to analyze these center frequency is 5.8 ghz

## gain of low noise amplifier

Hi, Can anyone help me out with plotting gain Vs frequency for lna using ads ,other than with S parameter analysis(s21)

## how to simulate and test a LNA or PA 's stability factor K?

Obtain your s-parameter by measurements and make compute your K factor for instance in Excel or Matlab... Some VNA's can calculate K-factors.Almost all commercially available simulators such as AWR,ads and the others can calculate K-factor.

## Instability Problem in LNA

Hi all, I have designed an lna at 145MHz using transistor ATF54143. I have simulated the circuit in ads with s21=19dB, S11=-20dB, S22=-15dB, k>5 for a wide frequency band, NF=0.3dB. After realization in FR4 PCB, I have a strange instability problem. It is unstable when powering, but it shows expected gain when I just touch the source (...)

## s21 for my lna is wrong,help me please

Could someone help me correct my lna?I'm from china,I'm new to ads ,thank you very much! Here is the prj and models need to be used;thank you! they need to be opened at ads2009U1

## Help me design a LNA in 0.18um technology and in 2.4GHz with ADS

we want to design a lna in 0.18um technology and in 2.4GHz with ads,but we dont how to design and what is the procedure.please help us... we should have plots of NF vs freq & S11,S12,s21,S22 vs freq & IP3 & P1dB & Zin thank you There is lna example in ads design guide, you can follow it

## differential LNA in spice ???

if u use baluns , u can plot the s21 and S11 of it check this link , but it is for ads , u can apply the same concept for ELDO khouly

## Sparameter V.S. Output spectrum

I am simulating the conversion gain of a 2.45GHz lna by ads. 1.Find out output power(dBm)@2.45GHz from output spectrum then substract specified input port power(dBm) 2.s21 by S-parameter analysis 3.Measure Vout and Iout @2.45GHz then calculate PowerOut(W)=0.5*real(Vout*conj(Iout)) PowerOut(dBm)=10*log(Power(W)) + 30 Then (...)