These websites contain information relating to the design of RF
amplifiers and opamps. There is a variety of design notes, design
service providers, and some design software. Please consider RF
Cafe advertisers first, since they make this resource possible.
Amplifier Vendor Page | Design
Transistor preamplifier calculators, find the gain of a transistor
amplifier under load, by James T. Hawes, AA9DT.
Design Using a λ/4 High Impedance Bias Line with a Defected Ground
Structure (DGS) ansoft.com/news/articles/04.04_MWJ.pdf
From Microwave Journal, by Yong-Chae Jeong, Si-Gyun Jeong, Jong-Sik
Lim, and Chul-Dong Kim.
Amplifier Load Mismatch Design Using MMICAD
Application note from Optotek, by
Balanced TGA1172 Measured Performance
1172 app note 1.pdf
Application note from TriQuint Semiconductor.
Broadband VHF/UHF Amplifier Design Using Coaxial Transformers
Article in High Frequency Electronics
by By C. G. Gentzler and S.K. Leong.
Buffer Amplifier Design
By Dennis L. Feucht.
Cascode Amp Design | passlabs.com/pdf/articles/cascode.pdf
From Nelson Pass, Pass Labs.
Class A Amplifier Design - Part 1
Class A amplifier design with the goal of a linear amplifier, by
Ian C. Purdie.
Class D Audio Amplifier Design | irf.com/product-info/audio/classdtutorial.pdf
From International Rectifier.
Common-Cathode Amplifier Design Ideas
John Broskie's Guide to Tube Circuit Analysis & Design.
Design for a 40W Broadband VHF RF Power Amplifier for
What this design is for: To boost the output power of low power
FM broadcast band exciters, a number of these are available commercially,
both as kits and ready made.
Fully Differential Amplifier Design in High-Speed Data
By James Karki, Texas Instruments.
Fully Integrated CMOS Power Amplifier Design Using the
Distributed Active-Transformer Architecture
Abstract by Ichiro Aoki.
Low Noise & Power Amplifier Design | circuitsage.com
PA, LNA software, design articles, references and links, from Circuit
Non-inverting Operational Amplifier Circuit
Circuit and design details for an operational amplifier / op-amp
non-inverting amplifier circuit. From Radio-electronics.com.
Hi Fi class D Audio Power Amplifier
The Sorensen Audio Experiment amplifier project by Johan Sorensen.
Operational Amplifier / Op Amp Basics
Overview, information and tutorial about the basics of the operational
amplifier, or op amp widely used in analogue electronics design
and electronics circuits where it can perform a variety of functions.
Operational Amplifier / Op Amp Gainadio-electronics.com/info/circuits/opamp_basics/operational-amplifier-gain.php
A simple summary of the gain given by various operational amplifier
or op-amp, opamp circuits showing the formulas, formulae used for
the calculations. From Radio-electronics.com.
Power Amplifier Design Using Measured Load Pull Data
This paper describes
a technique for creating an accurate behavioral model within the
software that avoids the need for manual entry of load pull data,
by John Olah and Sanjeev Gupta.
Pros and Cons of Amplifier Design
By John Roberts, Peavey Electronics.
RF Amplifier Design Using HFA3046, HFA3096, HFA3127,
HFA3128 Transistor Arrays | intersil.com/data/an/an9315.pdf
Application note from Intersil.
Technical Information and Free Design Software
RF Power amplifier design
information & software information and software to aid the design
of RF power amplifiers from S-Meter.
Using Spectrum Analyzers for Audio Amplifier Design
note from Pico Technology.