Ampsa (Pty) Ltd.

Advanced Amplifier Design Solutions Precision in Amplifier Design

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Ampsa Pty Ltd, founded in 1986 by Pieter LD Abrie, specializes in developing and marketing advanced synthesis software for radio frequency and microwave impedance-matching networks, amplifiers, and oscillators. Our flagship product, the Ampsa Amplifier Design Wizard, has evolved from its origins in Fortran on an IBM mainframe to a sophisticated Windows-based application, offering unparalleled design solutions. With a rich history rooted in academic excellence and industry collaboration, Ampsa continues to innovate, driven by the design needs of our users and the pioneering work of researchers in the field. We are committed to providing cutting-edge tools that empower engineers worldwide. Experience precision and efficiency in design with Ampsa's state-of-the-art software solutions.

Company Details

Address
33 Hildesheim Crescent, Pinehurst
Cape Town 7550

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Products & Services

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Ampsa ADW

The Ampsa ADW can control the fundamental-frequency terminations presented to a transistor, as well as the second...

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Amplifier Design Technology

The Ampsa ADW can control the fundamental-frequency terminations presented to a transistor, as well as the second...

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Ampsa ADW22_A60S

32-bit Ampsa Amplifier Design Wizard 60-days subscription license with standard features. This is a standalone...

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Ampsa ADW22_P60S

Fully featured 32-bit Ampsa Amplifier Design Wizard 60-days subscription license. This is a standalone single-user...

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Ampsa ADW22_A365S

32-bit Ampsa Amplifier Design Wizard annual subscription license with standard features. This is a standalone license...

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Ampsa ADW22_P365S

Fully featured 32-bit Ampsa Amplifier Design Wizard annual subscription license. This is a standalone single-user...

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Ampsa ADW22_A365SN

32-bit Ampsa Amplifier Design Wizard annual subscription network license with standard features. The network license is...

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Ampsa ADW22_P365SN

Fully featured 32-bit Ampsa Amplifier Design Wizard annual subscription network license. The network license is...

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Ampsa ADW22_E365S

32-bit Ampsa Amplifier Design Wizard educational annual subscription network license with standard features. The...

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Resources & Content

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Ampsa ADW Stability Features

The stability features in the ADW are explained here.

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Designing Doherty Amplifiers with the ADW

Designing matching networks for a basic Doherty amplifier is explained here.

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Single-Ended Equivalents for Symmetrical Power Combination Networks

Symmetrical combinations networks can be reduced to single-ended equivalents. The ADW approach to designing these...

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Setting Up Load-Pull or Source-Pull Matching Problems in the ADW

A load-pull or source-pull matching problem can be defined in two ways in the ADW. The two approaches are explored here.

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Designing Matching Networks for GaN Power Amplifiers

The ADW features for synthesizing matching networks for a high-power GaN amplifier stage are explored here.

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Designing Phase-Controlled Matching Networks with the ADW

A matching network can be designed to provide a conjugate match with a specific shift in the transmission phase at any...

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Introduction to Designing Matching Networks with the ADW

An introduction to designing matching networks for power amplifiers is provided here.

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Fitting an ADW Model to a GaN Transistor

The process of fitting an ADW model to a GaN transistor is outlined in detail here.

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Fitting Ampsa ADW Transistor Models

Modelling of transistors in the ADW is covered here.

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News & Press Releases

Press Release

Ampsa Amplifier and Impedance-Matching Network Synthesis Software

Published: 2/4/2025