Analog DevicesADI

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive database of device models for ADI’s RF and mixed signal components

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AppCAD Design Assistant for Microsoft Windows

Avago Technologies

AppCAD is a free Design Assistant Tool for Microsoft Windows

  • S-Parameter Analysis and Plotting
  • Active Circuit Bias Design
  • Cascade Noise and IP3 Analysis
  • Transmission Line Analysis
  • Signals and Systems
  • Complex Math Engineering Calculator

Free Download

Design Environment: RF/Microwave EDA Software Suite

National Instruments (formerly AWR Corporation)NI

The NI AWR Design Environment product portfolio consists of high-frequency design environments that embrace system simulation (Visual System Simulator™) and circuit simulation (Microwave Office), as well as electromagnetic analysis (AXIEM and Analyst™). The "registration-required" download site provides access to software downloads, documentation and design examples.

Accepted trial requests provide an immediate 7-day license, access to support services and training videos, and an opportunity to extend to a 30-day trial pending company approval.

Cascade Analysis Calculator

Custom MMICCascade

Cascade Analysis Calculator let's you go easily from datasheet to analysis. Designed to analyze up to 10 stages, this calculator offers a simple yet powerful way to analyze multi-component systems for their cascaded gain, noise figure, compression point and linearity. Various online cascade analysis calculators have one built-in problem: all stages must be specified with either input or output power parameters. Unfortunately, component datasheets are hardly universal in this regard—most active components such as amplifiers are specified in terms of output power and output IP3, but passive components such as mixers and attenuators are often specified by their input values.

This variation in specifications used to mean that a microwave system designer had to convert between input and output specifications (or vice-versa) in order to use a cascade analysis tool. While this conversion is simple for most parameters, converting output P1 dB to its input equivalent often leads to the following question: "Do I add '1' or subtract '1' to the gain to determine the input P1 dB?" This calculator lets one choose between input or output specifications for each component in a line-up—and go straight from datasheet to analysis without any questions.

Free Online (Requires Registration)

Cascaded Noise Figure CalculatorNoiseFigure


Pasternack's Cascaded Noise Figure Calculator computes the total noise and gain of cascaded amplifiers.

Free Online

Noise Figure-Noise Temperature CalculatorNoiseFigureTemp


Pasternack's Noise Figure-Noise Temperature Calculator will produce either noise figure or noise temperature, depending on the input type.

Free Online