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Application Notes & Technical Papers
by Company / Source Name

These application notes on vendor sites are some of the fastest moving targets on the web. If you try to hit one of the links and it is gone, please make an attempt to determine the new URL and notify me. Thank you. Due to how large the original page has grown, multiple pages are now used.

Application Notes & Technical Papers by Product:  Absorbers - Interference

Application Notes & Technical Papers by Product:  LEDs - ZigBee 

Agilent Technologies American Microwave
Application notes for variable attenuators.

Analog Devices Anaren

Andrei Grebennikov, M/A-COM Eurotec

RF & Microwave Power Amplifier Design

Lecture 1: Nonlinear Active Device Modeling

Lecture 2: Impedance Matching

Lecture 3: PA Design Fundamentals

Lecture 4: High Efficiency Power Amplifier Design

Anritsu App Notes
Downloadable application notes on RF & microwave test methodology.

Antenna Research Associates
Standard Antenna Terms & Related Formulas.

Apex Wireless
Frequency Hopping VS. Direct Sequence and Frequency Hopping (FH).

Applied Radio Labs
Group Delay Explanations & Applications.

Class-E RF Power Amplifiers, by Nathan O. Sokal, WA1HQC.

ATC Ceramics
Dielectric Aging Phenomenon.

Atmel Corporation
ASIC Design Guidelines.

AVX Corporation

Bell System Technical Journal
All editions from 1922 through 1983. Bell Labs is the source of many significant contributions, of course, in the area of telephony, but also in memory devices, imaging devices, system organization, computers and software technology, as well as acoustics, optics, switching, transmission, wireless and data communication. Generously made available by Lucent Alcatel Lucent.

Biology Daily
Capacitor Basics - Definitions and configurations, with some equations and illustrations.
Boonton Boonton
Analysis of Complex Modulated Carriers Using Statistical Methods

Huge Whitepaper Collection.

Carl Lodström
The Noble Art of De-Coupling.

Cisco Systems
Digital Transmission: Carrier-to-Noise, Signal-to-Noise & Modulation Error Ratio - Definitions, equations, images, tutorial.

Colby Instruments Complex 2 Real
This is the mother lode of communications tutorials, compliments of Charan Langton. Compliance Engineering
Antenna Pattern Measurement: Concepts and Techniques, part 1, by Dr. Michael D. Foegelle. The first article of this two-part series explores the basic concepts and techniques of antenna pattern measurement and evaluates the benefits and drawbacks of various measurement methods.

The RFDAC (Radio Frequency Digital to Analog Converter) Breakthrough and Advantages, by Michael Hopkins.

Cushcraft Corporation Dow-Key Microwave Eagleware
GaAs FET Power Amp Simulation.

EDN Access
Battery Handling - Li-Ion, by Matt Schindler.


Electronic Components, Assemblies & Materials Association (ECA)
EMI Filter Problems? Avoid them with proper installation and selection, by Mark Carter, Dearborn Electronics.

Electronic Design
Clock Requirements for Data Converters - Equations for calculating jitter and phase noise in data converters, by Don Tuite.

Electrostatic Discharge Association
Publications include standards and documents, books, EOS/ESD Symposia proceedings, selected papers and white papers, EOS/ESD Symposia presentations, ESD tutorial and seminar notes.
Emerson & Cuming Microwave Products Energizer Application manuals - Alkaline, Carbon Zinc, Manganese Dioxide App Note, NiCad, NiMH, Silver Oxide, Zinc Air.

Evaluation Engineering
The World of the Near Field, by Tom Lecklider.

FCC Office of Engineering and Technology
Adaptive Antenna Tutorial - Spectral Efficiency and Spatial Processing.

Federal Communications Commission FCC
This is a handy troubleshooting guide, mainly for commercial equipment such as television, AM/FM radio, paging systems, VCRs - even doorbell transformers. It was last updated in 1993. Still, it can be useful.

Bluetooth Remote Control from Your Mobile Phone. FlexiPanel makes a lot of turnkey modules for ZigBee and Bluetooth applications. Admittedly, this concept does scare me a bit from a terrorist perspective!!!
Freescale Semiconductor Glen Dash
Designing Enclosures for EMC Compliance. Even though Dr. Dash is an accomplished expositor on Maxwell's Equations, his opening quote here is, "While science has devised new models and computerized methods for EMC design, your best tool for enclosure design may still be your thumb."
On this website you will find an incredibly extensive collection of papers on the subject of EMC/EMI/RFI testing and measurement, anechoic chambers, antennas, Maxwell's Equations, regulatory law, noise control, crosstalk, product liability, and much more.

Granite Island Group
Antenna Basics - In PDF format.

Application Notes: Attenuators.

High Frequency Electronics
A Review of Key Equalizer Specifications and What They Mean, by Richard Kurzrok.

High Frequency Electronics
Electromagnetic Radiation and Human Health: A Review of Sources and Effects.

HP Journal Online Archive
This appears to be a complete collection of the HP Journal, running from September 1949 (v1. n.1) through February 1998.

Electronic Design
WebEE series of tutorials & primers. Many articles on Amplifiers and Filters, Batteries, Classes in Electronics, CMOS, Communications, Digital Filters, Electrostatics, Microprocessors, Medical, MOSFETs, Motors, Operational Amplifiers, Optoelectronics, PC Related, Phase Locked Loops, Power Conversion, Pressure Sensors, and Printed Circuit Boards.

V / UHF Antenna Design.

Instruments For Industry
Selection and Operation of RF Power Amplifiers for EMC Testing Applications.

International Rectifier App Notes
App notes in .pdf format including motor control, lighting, high voltage ICs, class D audio, automotive, AC-DC, DC-DC, aerospace and defense, general, MOSFET, IGBT, diode, package, thermal.

RF Amplifier Design Using HFA3046, HFA3096, HFA3127, HFA3128 Transistor Arrays.

Ivan Boshnakov, Aerial Facilities Limited

First-Time-Right Design Of RF/Microwave Class A Power Amplifiers Using Only S-ParametersA procedure of how to design RF/Microwave Class A power amplifiers in a very efficient and highly accurate manner when the only initial data available are the S-parameters of the transistors.


Matrix Switches Blocking vs. Non-blocking

Johanson Technology Linx Technologies Lodestone Pacific
Magnetic Core Design Rules.

M/A-COM Maxim Integrated Products MaxStream (now Digi)
XBee Antennas - Practical information regarding the performance of the XBee and XBee-PRO RF Modules.

Maury Microwave
Download application notes relating to Maury products and subjects of interest. MECA Electronics
MECA Electronics
Merrimac Industries
Quatrature Hybrids 90°i Power Dividers/Combiners 10 kHz to 40 GHz General Information.

Antenna Design Tutorial, by Tom Yestrebsky.

Microwave Product Digest Milmega
Design and Construction of a 6kW Pulsed Amplifier for 1.2-1.4GHz Applications, Corporate Structure Amplifier, Design of a High Power Amplifier to Replace TWTAs in Airborne Applications, CW Amplifiers, Pulsed Amplifier, The Choice is Yours, Application for Milmega Amplifiers in the Communications Industry.

Interference Technical Index

N6CA, ham-radio.com
Antenna Application Notes.

Narda Microwave East National Semiconductor
ADC Interleaving - Interleaving ADCs for Higher Sample Rates, by Nicholas C. Gray.

National Instruments
Designing Filters Using the Digital Filter Design Toolkit, by Rahman Jamal, Mike Cerna, John Hanks.
National Taiwan University National Semiconductor
A Tutorial on Applying Op Amps to RF Applications, by National Semiconductor.

Naval Education & Training Professional Development & Technology Center
Navy Electricity and Electronics Training Series Module 10 - Introduction to Wave Propagation, Transmission Lines, and Antennas.

Navy's Electrical Engineering Training Series (NEETS)
The entire series downloadable in PDF format.

Battery Selection Guide - Lots of good information on battery chemistries and charge/discharge characteristics.

Noisecom Optotek
Amplifier Load Mismatch Design Using MMICAD - Application note, by D. Fitzpatrick.

Orban Microwave Products
Antenna application notes from Orban Microwave Products.

Paul Wade W1GHZ
The W1GHZ Online Microwave Antenna Book - Excellent - a good reference for all microwaves.

Pletronics, Inc. Polyphase Microwave PowerStream
Battery Chemistry FAQ - Here we discuss different of the battery designs currently used, some of the chemistry involved, and advantages and disadvantages of each design.

Praxsym Radiotronix Rayovac
Lifex™ Lithium Coin Cells & FB Encapsulated Lithium Coin Cells - Part 1, application notes & product data sheet.

RF Cafe RF Design Rohde & Schwarz
Downloadable list of app notes.

Signal Processing Group, Inc
Bond wire failures ( fusing) in integrated circuits with pulsed currents – an analytical view.

Skyworks Spectrum Microwave Spinnaker Microwave Tech-Etch
EMI/RFI Shielding.

Antenna Design Considerations.

Texas Instruments
Amplifiers & linear including audio amplifiers, op amps, comparators, current sensing, difference amplifiers, instrumentation amplifiers, isolation analog amplifiers, logarithmic amplifiers, sensors, sensor conditioning, 4-20mA transmitters, solenoid/valve power drivers (PWM), TEC & pump laser bias.

Texas Instruments
TriQuint Semiconductor UMR EMC Laboratory Technical Report
Measurement in FR-4
Determining Dielectric Constant and Loss Tangent in FR-4.

University of California
Power Amplifier Design Lectures - ECE 145A/218A, by Professor Steve Long.

University of California
RF Power Amplifier Design - Design and Implementation of a Common Collector Class B RF Power Amplifier in InGaP HBT Technology, by Oliver Isler.

University of Guelph
Capacitor history - A very nice introduction to capacitors including history back to Leyden Jar, by Tony van Roon.

University of Illinois Urbana-Champaign
Complex Numbers, Phasors & Circuits - Another great PowerPoint presentation from, by Professor Amanogawa.

University of San Diego
Amplifier Design - Design of Microwave Transistor Amplifiers Using S Parameters - EEE 194 RF course material.

University of San Diego, CA
Filter Design, Distributed Element, from Ernie Kim. Periodic structures and equivalent lumped element models.

University of San Diego, CA
Minimum loss attenuator, from Ernie Kim, Reference - RF Design Guide: Systems, Circuits and Equations. Peter Vizmuller.

University of San Diego, CA
RF inductor design, from Ernie Kim.

University of Surrey

A very extensive treatise of many antenna types, including definitions, photos, and examples, by David Jefferies.

University of Surrey
Yagi-Uda Antennas - Tutorial with photographs of actual antennas, by David Jefferies.


US Microwaves

UTE Microwave, Inc
Basic Circulator Facts.

Vectron International
Jitter in Clock Sources.

Virginia Polytechnic Institute & State University
Effect of Admixtures, Chlorides, and Moisture on Dielectric Properties of Portland CementConcrete in the Low Microwave Frequency Range, Thesis by Kiran Pokkuluri.

Virginia Polytechnic Institute & State University
Ultra-wideband Propagation Measurements and Channel Modeling. DARPA NETEX Program Report on Through-the-Wall Propagation and Material Characterization.

Watkins Johnson Wenzel Associates
Low Frequency Circulator/Isolator Uses No Ferrite or Magnet, by Charles Wenzel.

Zarlink Semiconductor
GPS Receiver Hardware Design.

Z-Communications Inc.
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