Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [ads]

Advanced Design System (ADS) is an electronic design automation software system. It provides an integrated design environment to designers of microwave and RF electronic products.

Advanced Design System (ADS) is an electronic design automation software system produced by Keysight EEsof EDA, a division of Keysight Technologies. It provides an integrated design environment to designers of RF electronic products.

86 questions
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I2C Connection with ADS1115 not working

I have trouble by setting up an I2C connection between ESP32 NodeMCU and ADS1115 (datasheet). Wiring: I'm using the below example code from Adafruit: #include Adafruit_ADS1115 ads; /* Use this for the 16-bit version…
michaelgr22
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ADS (Advanced Design System) Simulation to fit experimental data

I am a noob on ADS software. I was just wondering, if I have a given set of measurement data like the following: And I know a equivalent RLC circuit model for my device, from literature. How do I optimize the RLC parameters in ADS so that the…
BY Jiang
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How to import a .csv file into ADS?

I'm using ADS2006A version and I'm trying to plot an eye diagram. However, I need to import a .csv file into ADS first because I did the simulation in Matlab. While importing, it asks for pattern length and point/bit. I tried putting several values…
Ain Najihah
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ADS simulation error when inputting a clock in to a D flip-flop through an NMOS switch

A NMOS gate controls when the clock signal is fed into the clock of the D flip-flop. Below is the NMOS gate schematic and simulation. As we can see, the Vsquare only goes through the NMOS when the gate voltage Vstep2 is high. No problem! But if I…
kintaro
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How can I graph the bias voltage vs capacitance in ADS?

I am trying to model a bias tee and control the capacitance of the varactor by varying the voltage. How do I plot the voltage vs capacitance/charge in a graph in ADS using AC simulation?
Nimasha Pilippange
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De-embedding ceramic filters

I want to design a diplexer using two ceramic filters. S2P files of the filters are not provided. Therefore, I designed a PCB which can be shown below to obtain their S2P parameters. In the first channel shown above, there is a BPF whose center…
Aldrich Taylor
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Wideband impedance matching to an LNA with varying impedance over frequency

What's the general design procedure for trying to do a wideband impedance match to a device (in this case an LNA) which has very frequency-dependent impedance? As a personal project, I'm trying to design an LNA for the RTL-SDR receiver which…
Synchrondyne
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ADS Simulation of IV Diode Characteristics

I’m still quite new to ADS, and I’m trying to get a simple simulation of the IV diode characteristics. I want to plot the diode current against a DC sweep from -0.2V to +0.2V Here’s what I’ve got so far, not so sure as to why the current is…
zoe20
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Modelling a non-linear resistor on ADS

How can I model a non-linear resistor whose current changes according to the equation shown below on Advanced Design System (ADS) or AWR Microwave Office? $$i(t)=v-v^2-v^3$$ Where v is voltage difference between terminals of the resistor. How can I…
Aldrich Taylor
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Transimpedance amplifier simulation acting weird

So, I have been trying to simulate this low input current transimpedance amplifier, but I am just not getting results I was expecting. So to explain the circuit in short, I will be working with photocurrents ranging from 0 to 100 nA and I want those…
Jakov Sergo
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Design and simulation of cross coupled oscillator in ADS

I am currently designing a low power consumption and low phase noise VCO in ADS. But while performing the transient response I'm not getting the oscillating waveform in the output. I have attached the image of my circuit. Any help can be greatly…
RUCHA KHANDARE
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How to Model a Bias Tee in ADS

I'm modeling a Bias Tee in ADS and I wanted to ask how to add board parasitics into the model and what should the results of a good model look like in terms of the S-parameters. This is my first time working with a Bias Tee but from reading…
aj_intern2019
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Marchand balun layout

For this marchand balun schematics in ADS, how to instruct the ADS layout generator to use coil shape (for area saving in IC) ? Besides, anyone have any experience with planar layout of marchand balun on PCB ? balun schematics generated balun…
kevin
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Unexpected loadline in ADS simulation

NOTE: This question is related to a homework project. I’m designing a PA for the 850-880MHz band. We have quite a lot of freedom for doing that. Only two requirements are specified: The amplifier must reach P1dB=29dBm It must have at least 15dB…
user162437
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How does SPICE calculate Drain current of a MOSFET model?

I am trying to use a MOSFET model for constructing transistor level circuits in ADS. (For instance, an amplifier). I saw that we could import transistor libraries from various locations (https://www.ece.ucsb.edu/~long/ece594a/ece594a.htm) or from a…
sundar
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