ANTENNAS

RF AND  MICROWAVES CIRCUITS DESIGN

COMMUNICATIONS

DIGITAL CIRCUITS MICROCOMPUTERS MICROCONTROLLERS AND SYSTEMS

INSTRUMENTATION AND MEASUREMENTS

ACOUSTICS  AUDIO ANALOG AND  POWER ELECTRONICS  +TRANSFORMERS

A

Antenna on line book

Very Good.

By Paul Wade  

 

Acive atenna for AM,FM ( Link)

 

All about antennas

in Spanish (En español)

Tutorial

B

Basics of Antennas.

From the EW and Radar 

Systems Hand book.

F

Foil and PCB Antennas:

Low power & PCB antennas by RFM  

 

PCB Trace Antenna

Design Consideartions....

By Amtel.

 

Fresnel Zone Bound. calculator

 

Frequnecy Spectrum

and Wave Lengths

H

Ham antennas a lot!

L

Low power & PCB antennas by RFM  

P

 

Parabolic reflector

analysis calculator

 

Antennas Polarization.

R

RF Atmospheric Absortion

S

Satellites location and frequency data.

 

Software:

Antennas Software byNittany Scientific

 

Antennas Software

by EZNEC

 

Antenna tilt calculator

 

Parabolic reflector

analysis calculator

 

Smith Chart Resources & tools

Color Smith Chart

By: www.eecircle.com

 

Downloads and plenty of

Smith Chart Resources,

 

Impedance Matching and the Smith Chart: The Fundamentals.

By Maxim

 

How does the Smith Chart Works, Tutorial.

By Rick Nelson, Test &

Measurement World.

 

Smith Chart tools

By Agillent Technologies

V

VHF and UHF tons of information.

 

 

A

Amplifiers, RF and

Microwaves:

Amplifiers, Dynamic Terms Definitions.

By minicircuits

 

Microstrip Design Techniques for UHF

Amplifiers.

By Motorola/ Freescale

 

Design Methodology  for Power Constrained  Low Noise RF Circuits.

Attenuators:

Pi and Tee pad calculator

 

Minimum loss pad calculations.

By Maxim

 

Wide Band Pin Diode Attenuator Design.

By Alpha Industries

C

Circulators and Diplexors Basics.

 

Compandor Cook Book

By Philips.

 

Crystals

Specifying Quartz Crystals, Application note

by Maxim

D

Data Converters:

Understanding data converters

By TI

 

Detectors, RF

 

Directional Couplers.

 

DSP

An Introduction To Digital Dignal Processors.

By Analog devices.

 

The Scientist and Engineers guide to DSP.

Free download or:

Buy the book, click here

 

MIxed Signal and DSP

Design Techniques On lline

Book, by Analog Devices

Very Good!

 

dBm, dBmV, and dBµV Conversions table and 

equations.

By Maxim

 

dBm-Volts-Watts table

By Minicircuits.

F

Filters:

Basic Definitions.

By MIninicircuits

 

Digital Filters Tutorial

 

Digital Interective On Line Filter Design

 

LC Filter design Interactive On line

M

Mixers:

Mixers Types Tutorial

 

Mixers Terms Defined.

By Minicircuits

 

Mixer Spur Chart Calculator.

Design Software.

By Hittite Microwaves

 

Understanding Mixer.

By Minicircuits.

 

N

Noise:

Noise Analysis.

 

Noise, Understanding

Common Mode.

Very good tutorial 

By Pulse Engineering

O

Oscillators and VCO's

Microwave Oscillator Design:

By Agilent Technologies

 

Fundamentals of Quartz

Oscillators.

By Agilent Technologies

 

Direct 6-GHz Local Oscillator Design with a New, Wideband, Integer-N, PLL Synthesizer.

By Analog Devices

 

VCO Definition Of Terms.

By Minicircuits

P

Power Dividers and Directional Couplers.

 

PCB Materials:

PCB Materials specifications tables

 

Phase Locked  Loops

and Frequency 

Synthesizers:

 

An Overview of the PLL.

By Philips Semi.

 

Digital Direct Synthesis

Glossary By Analog Dev.

 

Choosing DAC's  For

Direct Digital Synthesis.

By  Analog devices

 

Phase Noise in PLLs

 

PLL Tutorial

Application Note.

by Philips Semi.

Very Good!

 

PLL Phase noise Calculator

Design software.

By Hittite Microwaves.

 

PLL Frequency Synthesizers Tutorial.

By Analog Devices.

 

Pin Diodes Design:

Design with PIN diodes.

By Skyworks

 

Wide Band Pin Diode Attenuator Design.

By Skyworks

R

Radar:

EW and Radar Engineering Hand Book.

By Naval Airware Center.

 

Return loss vs VSWR (1)

By Minicircuits

S

Satellites location and frequency data.

 

Spice Devices Models

 

Spice Models Circuits Collection.

By e Circuit Center.

 

Smith Chart Resources and  tools:

For Smith chart resources see Antennas section

 

S Parameters.

S Parameters design,

application note.

by Agilent Technologies

 

S Parameters techniques

for faster, more accurate

circuits and network Design.Choice of Down load formats.

By Agilent Technologies.

 

 

T

Transformers, RF.

How RF Transformers Work.

Very Good tutorial.

By Minicircuits.

 

Transformers RF

General  tutorial by Minicircuits

 

Transistors

Microwaves transistors

bias considerations.

By Avago Tech.

V

Vector Network

Analysis, Fundamental Principles. By

Agilent Technologies

 

W

Waveguides and Coaxial Cables.

 

A

Allocation of Radio Spectrum, Frequencies and Bands. For USA 1

 

Allocation of Radio Spectrum charts for USA 2

 

Allocation of frequencies

Comprehensive  information

B

Bluetooth

Bluetooth tutorial

Bluetooth from WSW

Bluetooth protocols

C

CATV International Frequency Charts

 

Communications Spectrum Chart (sse top of section )

 

Compandor Cook Book

By Philips.

D

DSP

An Introduction To Dignal Signal  Processors.

By Analog devices.

 

The Scientist and Engineers guide to DSP.

Free download the author site:

 

MIxed Signal and DSP

Design Techniques On lline

Book, by Analog Devices

Very Good!

F

Filters

Basic Definitions.

By MIninicircuits

 

Digital Filters Tutorial

 

Digital Interective On Line Filter Design

 

 

LC Filter design Interactive On line

M

Mixers:

Mixers Terms Defined.

By Minicircuits

 

Understanding Mixer.

By Minicircuits.

Modulation:

A Comparison Between

OOK/ASK and FSK 

Modulation.

BY RF Monolithics

 

All about Modulation

PSK, QPSK, OQPSK, and  more

 

Modulation Basics:

FM, AM by National Ist.

 

Direct Digital Modulation.

By Skyworks.

 

QPSK and IQ Modulation AN.By Mini Circuits.

 

QPSK Modulation Demystified.

Tutorial note by Maxim

N

Noise:

Noise Analysis.

Noise, Understanding

Common Mode.

Very good tutorial 

By Pulse Engineering

R

Receivers

Receivers

 

High Performance

Narrow Band Receiver Design....

By Analog Devices..

 

Sensitivity and Noise.

 

S

Satellites location and frequency data.

 

Signal Analysis Tutorial,

The fundamentals.

By Agilent Technologies.

 

Spread Spectrum:

Direct Sequency

Spread Spectrum

Communications.

Introduction. By Maxim 

 

Spectrum Analyzer and Noise Measurements  

(AN 1303) By Agilent Technologies

 

Spread Spectrum SystemsReceiver Sensitivity Equation.

By Maxim. 

 

Spread Spectrum Tutorials

 

T

Telephony:

Caller ID tutorial

 

Telephony Technology Page.

By epanorama. Very Good.

 

Telephone Related Circuits 

( Link)

 

Worldwide Cordless Telephone Frequencies : 

App Note By 

Motorola.

Transmitters:

Transmitters 1

 

Trasnmitters 2

U

USB tutorial 1

 

V

Vector Network

Analysis, Fundamental Principles. By

Agilent Technologies

 

 

 

 

 

 

 

D

Digital Circuits tutorila 1

Digital Circuits tutorial 2

M

Microprocessor tutorial 1

Microprocessor tutorial  2

S

Spice Models

 

Spice Models Circuits Collection.

By e Circuit Center.

 

 

G

Accurate Gain/Phase 

Measurement at Radio Frequencies Up  To

2.4 GHz.

M

Measuring  The Electrical Performance

Characteristics of RF/ IF

And Microwaves Signal Proc. components.

BY Minicircuits.

R

RFTest equipment

and software  by Green Bay Professional Packet

Radio.

Equipment,pads,

reflection testers, etc.

S

Spectrum Analyzer and noise Measurements  

(AN 1303) By Agilent Technologis

T

Two Tone Third Order Testing.

By Minicircuits.

 

QPSK and IQ Modulation AN.By Mini Circuits.

V

Vector Network

Analysis, Fundamental Principles. By

Agilent Technologies

 

 

A

Amplifiers Audio and OP Amps:

Amplifiers Schematic and projects, Osc.

 

Logaritmic Amplifiers

Explained. Tutorial

By Analog Devices.

 

Operational Integrators

BY Analog Devices

 

Users Guide  To Applying And Measuring Operational

Amplifiers.

Application note.

By Analog Devices

 

Ways to Optimize The Performance of Difference Amplifier.

BY Analog Devices

F

Filters:

Analog filters application notes collection from Maxim.Very Good!

 

Analog Filter  Op Amp Design, Technical Notes.

By Texas  Inst.

Very Good.

 

Basic Definitions.

By MIninicircuits

 

Digital Interective On Line Filter Design

 

LC Filter design Interactive On line

 

Filter Pro Active Filters

Design Software.

Free Download.

By Texas Inst.

 

Application Notes for

Low Pass Filters Design and Filter Pro 

Progtram. By TI

N

Noise Analysis.

 

Noise, Understanding

Common Mode.

Very good tutorial 

By Pulse Engineering

 

O

Operational Integrators

BY Analog Devices

P

Preamp for Microphone

(link)

Power supplies:

App.notes by IRF

 

Design tips by IRF

 

Design tips by Ridley 

Engineering

 

Technical papers and applications on Power Supplies by IRF

 

Switching Power Supplies general information and tutorials

 

A Complete Switching Power Supplies and  Power Transistors Course.

By Philips.

S

Spice Devices Models

 

Spice Models Circuits Collection.

By e Circuit Center.

T

Transformers:

Transformers Magnetics, Introduction

 

Power transformers design

Comprehensive info

 

More on Transformers design

 

Transformer design by TI

 

U

Ultrasound Analog

Electronics Primer.

By Analog Devices.

V

Voltage Refrences,

Understanding and Applying.

By Linear Technology.

 

 

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Engitek.com

All  Engineering and Technical information in one place.....

 

This section is dedicated to provide links to Engineering and Technical Information by categories, this section is organized for easy navigation and to find the information required with minimum effort. You can recommend  relevant information  for this section such as application notes, or specific engineering paper and applications on Ele ctronics, Mechanics, Power Design, Communications, Computers, Antennas, Microwaves and Radio Frequency,  please send your  recommendations to: inquires@engitek.com

RESISTORS COLOR VALUE  CODE

BAND

Color

BAND 1

First Digit

BAND 2 Second

Digit

BAND 3

Multiplier

BAND 4

+/-

Tolerance Percent

BAND 5

RELIABILITY

Failure Rate Data Optional

for Military  Applications

Per 1000 Hours

Black

0

0

1

 

 

Brown

1

1

10

1%

 

Red

2

2

100

2%

 

Orange

3

3

1000

 

 

Yellow

4

4

10 000

 

 

Green

5

5

100 000

0.5%

 

Blue

6

6

1 000  000

0.25%

 

Violet

7

7

10 000 000

0.1%

 

Gray

8

8

100 000 000

0.05%

 

White

9

9

1000 000 000

 

 

Gold

 

 

0.1

5%

 

Silver

 

 

0.01

10%

 

No Color

 

 

 

20%

 

No Color

 

 

 

 

No Reliability Data

Brown

 

 

 

 

M  1.0 %

Red

 

 

 

 

P  0.1 %

Orange

 

 

 

 

R  0.01 %

Yellow

 

 

 

 

S  0.001%

1       2     3        4     5

COLOR BANDS

Example:    

For this resistor value = 5200 with 5% tolerance with

0.001% failure rate per 1000 hours

Band 1

Band 2

Band 3

Band 4

Band 5

           CAPACITOR BAND COLOR CODES

Capacitor Can Be Either Four or Five Band Color Coded

First Digit

Second Digit

Multiplier Factor

Working Voltage In a Four Band Coded

Cap or TC  In a Five Band Coded  Cap

Working Voltage In a Five Band Coded Cap

 

ENGINEERING AND TECHNICAL INFORMATION ARRANGED BY CATEGORIES

Resistor Value Code, Go

Capacitor Value Code, Go

Band 1

Band 2

Band 3

Band 4

Band 5

DISK CERAMIC CAPACITORS VALUE CODE

273G

Example:

Define the capacitor value and tolerance with this code:

273G

 

The first two digits is capacitor value in picofarads = 27

The third digit is the digits multiplier, in this case 3=1000

The letter is the capacitance tolerance, in this case G= 2%

Therefore the result is:

27000 picofarads with a capacitance tolerance of  +/- 2%