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simulation pwm ads
Hello guys,
Could any please help me to build a simple macro model for a PWM converter on ADS?
What I want is to convert a sine wave to PWM signal for system level simulation purposes.
Thanks anyway,
WM3
ads mixer simulation
Hey Alex_IC,
I think this design **broken link removed** from Agilent is suitable for you, a step-by-step low power mixer design using HB controller.
rf dc bias
@ BigBoss
Yes this PA outputs nearly 10W, I measured 38dBm. When I supply the input, I see the 38dBm then gets lowered to about 33dBm then If resupplied the input again the same scenario repeats.
And if the problem is that the temperature changes the load, so how can I account...
power amplifier input power output power
But, BigBoss it's already class-AB and yes the input drive level influence the Q-point, this is expected. Regarding stability it's stable and no oscillation observed at any frequency during measurement.
If I turned the input signal on and observed the...
10w rf amplifier
Dears,
I am working on RF power amplifier. DC bias, small-signal frequency response and stability are just fine.
The problem is that the output power above certain limit it reaches the expected value then immediately drops down by several dBs, however cooling is OK (heat sink...
Re: Impedance matching issue
Dear cmos_vlsi,
Sure your amplifier is not stable. This is indicated by larger-than-one S11 or S22 or negative input or output impedance. In terms of stability analysis, you will find the k-factor smaller than one and\or the stability measure factor is negative in...
inout impedance
maniana,
Polyfet shares ADS and AWR designs to extract Zin and Zout impedance of a transistor from Spice Model. The design contains optimization and goal parameters set up to tune input and output circuit for maximum power and gain. Both ADS and AWR versions are allowed for...
Re: ADS simulation
If you have its s-parameters model (*.s2p file), then you are working in the linear region and with certain bias that is determined in the s-parameters file. On the other hand, if you have the non-linear model of the transistor, a circuit model given in the datasheet, then...
Hi, ...
Look, I will send you my report in my faculty, ASU. You consider the last question with its answer. I believ in that will help you.
Regards,
Wael
Check this method, blowfish
Let's name that transistors in the stack from down to up as follows:
M0, M1, M2, M3, M4, M5 and M6.
The overdrive (or effective) voltage is Vgs-Vth. The minimum drain-source voltage of a transistor working in saturation is the overdrive voltage so,
Vbias2-min =...
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