Categories

Design Project: Radio Transmitter

Worksheets - Software-Defined Radio

Research the FCC (Federal Communication Commission) guidelines on…

Passive Filter Circuits

Worksheets - Software-Defined Radio

In very simple, qualitative terms, rate the impedance of capacitors…

Phase-Locked Loops

Worksheets - Software-Defined Radio

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

Signal Modulation

Worksheets - Software-Defined Radio

A modern method of electrical power control involves inserting a…

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Other Diode Technologies

Textbook

Varicap or varactor diodes A variable capacitance diode is known as a…

Radio Circuits

Textbook

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

Fundamentals of Radio Communication

Worksheets - Software-Defined Radio

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

Mixed-Frequency Signals

Worksheets - Software-Defined Radio

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

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Resonant Filters

Textbook

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

Rectifier Circuits

Textbook

What is Rectification? Now we come to the most popular application of…

Amplifier Gain

Textbook

The Voltage Gain Because amplifiers have the ability to increase the…

Optical Data Communication

Textbook

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

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

Harmonics in Polyphase Power Systems

Textbook

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

More on Spectrum Analysis

Textbook

Computerized Fourier analysis, particularly in the form of the FFT…

RF Power Conversion Calculator

Tools

A tool designed to convert RF power from watts to decibels and vice versa

Free Space Path Loss Calculator

Tools

This calculator calculates the free space loss, given the distance, frequency, and gain, between two antennas.

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Microstrip Patch Antenna Calculator

Tools

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

Q Factor and Bandwidth of a Resonant Circuit

Textbook

The Q, or quality, factor of a resonant circuit is a measure of the…

Radar Maximum Range Calculator

Tools

This tool is designed to calculate the maximum distance (range) that a radar can detect

Half-wave Rectifier

Textbook

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

Electric Shock

Worksheets - Software-Defined Radio

It is sometimes said regarding electrical safety that, Ït’s not the…

Mixed-Frequency Signals

Worksheets - Software-Defined Radio

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

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Practical considerations - Digital Communication

Textbook

A principal consideration for industrial control networks, where the…

Waveguide Calculator (Circular)

Tools

This tool calculates the cutoff frequency of a circular waveguide

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Introduction to Operational Amplifiers (Op-amps)

Textbook

What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

Transistor Ratings and Packages (JFET)

Textbook

Simple Vector Addition

Textbook

Remember that vectors are mathematical objects just like numbers on a…

Microstrip Max Current Calculator

Tools

A calculator for solving the maximum current a microstrip can handle.

An Analogy for Ohm’s Law

Textbook

Ohm’s Law also makes intuitive sense if you apply it to the…

Octal and Hexadecimal to Decimal Conversion

Textbook

Although the prime intent of octal and hexadecimal numeration systems…

Wire Loop Inductance Calculator

Tools

This calculator helps you compute the inductance of a wire loop.

Mutual Inductance and Basic Operation

Textbook

Behaviors of Inductors wrapped around a Conductive Core Suppose we…

A Very Simple Computer

Textbook

PARTS AND MATERIALS Three batteries, each one with a different voltage…

Design Project: Signal Generator

Worksheets - Software-Defined Radio

Explain the principle of operation for the particular integrated…

Example Circuits and Netlists

Textbook

The following circuits are pre-tested netlists for SPICE 2g6, complete…

Parallel R, L, and C

Textbook

We can take the same components from the series circuit and rearrange…

Converting Between Thevenin and Norton Equivalent Circuits

Textbook

Since Thevenin’s theorem and Norton’s theorems are two…

Parallel Resistor-Inductor Circuits

Textbook

Let’s take the same components for our series example circuit…

Design Project: Audio Tone Control

Worksheets - Software-Defined Radio

Suppose you were installing a high-power stereo system in your car,…

SPICE Models

Textbook

The SPICE circuit simulation program provides for modeling diodes in…

Switches

Worksheets - Software-Defined Radio

What is the purpose of the switch shown in this schematic diagram?

Introduction to Digital Integrated Circuits

Textbook

Digital circuits are circuits dealing with signals restricted to the…

The Common-base Amplifier

Textbook

The final transistor amplifier configuration (Figure below) we need to…