Categories

Resonant Filters

Textbook

So far, the filter designs we’ve concentrated on have employed…

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a tank circuit

Phase-Locked Loops

Worksheets - Wireless/RF

This is a schematic for a simple VCO: The oscillator is of the RC…

VSWR / Return Loss Calculator

Tools

A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission line

Waveguide Calculator (Rectangular)

Tools

This tool calculates the cutoff frequency of a rectangular waveguide

Mixed-Frequency Signals

Worksheets - Wireless/RF

What is a harmonic frequency? If an oscillator circuit outputs a…

Optical Data Communication

Textbook

A modern alternative to sending (binary) digital information via…

Power Added Efficiency Calculator

Tools

A calculator designed to compute the power-added efficiency (PAE) of an amplifier

Square Wave Signals

Textbook

It has been found that any repeating, non-sinusoidal waveform can be…

Digital Communication

Worksheets - Wireless/RF

Don’t just sit there! Build something!! Learning to analyze digital…

Noise Figure and Noise Temperature Calculator

Tools

This calculator computes the noise figure and noise temperature in a system

Questions to Ask Before Proceeding

Textbook

Has the system ever worked before? If yes, has anything happened to…

Impedance Transformation

Textbook

Standing waves at the resonant frequency points of an open- or…

Bandpass Filter Calculator

Tools

This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.

Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Half-wave Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) 6-volt…

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

Inductance, Reactance, and Admittance Calculator

Tools

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor

Zener Diodes

Worksheets - Wireless/RF

Don’t just sit there! Build something!! Learning to mathematically…

Basic Algebra and Graphing for Electric Circuits

Worksheets - Wireless/RF

Many different equations used in the analysis of electric circuits may…

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

Slope (integrating) ADC

Textbook

So far, we’ve only been able to escape the sheer volume of…

Fundamentals of Radio Communication

Worksheets - Wireless/RF

What does the acronym RF stand form, in reference to radio-related…

The D Latch

Textbook

Since the enable input on a gated S-R latch provides a way to latch…

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.

EIRP Calculator

Tools

A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna

Resistor Color Code Calculator and Chart (4-band, 5-band or 6-band)

Tools

A handy tool for reading resistor color code values

555 Monostable Multivibrator

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Algebraic Substitution for Electric Circuits

Worksheets - Wireless/RF

There are two basic Ohm’s Law equations: one relating voltage,…

Quantum Devices

Textbook

Most integrated circuits are digital, based on MOS (CMOS) transistors.…

Time Constant Circuits

Worksheets - Wireless/RF

Don’t just sit there! Build something!! Learning to mathematically…

Stripline Max Current Calculator

Tools

A calculator designed to calculate the maximum current that a stripline can handle

Counter Modulus

Textbook

Incomplete

Design Project: Sensitive Audio Detector

Worksheets - Wireless/RF

The choice of step-down transformers to use in a project such as this…

Capacitor Sizing Equation

Textbook

Capacitance Formula     Permittivity of Dielectric  …

Safe Meter Usage

Textbook

Using an electrical meter safely and efficiently is perhaps the most…

Rectifier/Filter Circuit

Textbook

PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

Common-Emitter Amplifier

Textbook

PARTS AND MATERIALS One NPN transistor—model 2N2222 or 2N3403…

Common Antiderivatives

Textbook

 

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

High-pass Filters

Textbook

A high-pass filter’s task is just the opposite of a low-pass…

DC Transducers

Worksheets - Wireless/RF

Research and describe what the Hall effect is, and list some practical…

Multi-Stage Amplifier

Textbook

PARTS AND MATERIALS Three NPN transistors—model 2N2222 or 2N3403…

Basic Oscilloscope Operation

Worksheets - Wireless/RF

An oscilloscope is a very useful piece of electronic test equipment.…

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

Series and Parallel Component Equivalent Values

Textbook

Series and Parallel Resistances     Series and Parallel…

Intermediate Electromagnetism and Electromagnetic Induction

Worksheets - Wireless/RF

As an electric current is passed through a coil of wire, it creates a…

Bipolar Junction Transistor (BJT) theory

Worksheets - Wireless/RF

Don’t just sit there! Build something!! Learning to mathematically…

Voltage Signal Systems

Textbook

The use of variable voltage for instrumentation signals seems a rather…

Encoders and Decoders

Worksheets - Wireless/RF

What does it mean, in general terms, to encode something? Conversely,…

Circuit Effects

Textbook

The principle of non-sinusoidal, repeating waveforms being equivalent…

TTL Logic Gates

Worksheets - Wireless/RF

Counting practice: count from zero to thirty-one in binary, octal, and…

AC Phase

Textbook

Things start to get complicated when we need to relate two or more AC…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

How to Build a Current Mirror Circuit

Textbook

PARTS AND MATERIALS   Two NPN transistors—models 2N2222 or…

Design Project: Arbitrary Waveform Generator

Worksheets - Wireless/RF

What, exactly, is an arbitrary waveform generator, and for what…

Practical Considerations - Inductors

Textbook

Inductors, like all electrical components, have limitations which must…