Categories

BJT Quirks

Textbook

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

Passive Filter Circuits

Worksheets - Antennas

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

Fundamentals of Radio Communication

Worksheets - Antennas

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

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

Signal Modulation

Worksheets - Antennas

A modern method of electrical power control involves inserting a…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Principles of Radio

Textbook

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

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

Maximum Power Transfer Theorem

Textbook

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

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Waveguides

Textbook

A waveguide is a special form of transmission line consisting of a…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Mixed-Frequency Signals

Worksheets - Antennas

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

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Free Space Path Loss Calculator

Tools

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

EIRP Calculator

Tools

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

Radar Maximum Range Calculator

Tools

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

Microstrip Patch Antenna Calculator

Tools

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

BJT Quirks

Textbook

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

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

More on Spectrum Analysis

Textbook

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

Three-phase Transformer Circuits

Textbook

Since three-phase is used so often for power distribution systems, it…

N-Way Power Divider Calculator

Tools

This calculator determines the total path loss provided by an RF n-way power splitter.

Band-pass Filters

Textbook

How to Create Band-pass Filter There are applications where a…

Frequency and Phase Measurement

Textbook

An important electrical quantity with no equivalent in DC circuits is…

Skin Depth Calculator

Tools

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.

Magnetic Units of Measurement

Textbook

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

Other Diode Technologies

Textbook

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

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Attenuators

Textbook

What is Attenuators? Attenuators are passive devices. It is…

Radio Circuits

Textbook

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

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Absolute dB scales

Textbook

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

Active Filters

Worksheets - Antennas

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

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

High-pass Filters

Textbook

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

Characteristic Impedance

Textbook

The Parallel Wires of Infinite Length Suppose, though, that we had a…

Capacitor Impedance Calculator

Tools

This tool calculates a capacitor's reactance for a given capacitance value and signal frequency.

555 Ramp Generator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 470 µF…

Rectifying Diodes

Worksheets - Antennas

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

Ohm’s Law - How Voltage, Current, and Resistance Relate

Textbook

The first, and perhaps most important, relationship between current,…

Digital Logic Functions

Textbook

We can construct a simple logic functions for our hypothetical lamp…

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Phase-locked Loops

Textbook

Sensing AC Magnetic Fields

Textbook

PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…

Bipolar Junction Transistors in Active Mode

Worksheets - Antennas

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

Step-up, Step-down, and Isolation Transformers

Worksheets - Antennas

Calculate the voltage output by the secondary winding of a transformer…

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Negative Feedback

Textbook

If we connect the output of an op-amp to its inverting input and apply…

Edge-triggered Latches: Flip-Flops

Textbook

So far, we’ve studied both S-R and D latch circuits with enable…

Nonlinear Conduction

Textbook

“Advances are made by answering questions. Discoveries are made…

Decibels Equations

Textbook

  RELATED WORKSHEETS: Decibel Measurements Worksheet

Bipolar Junction Transistor (BJT) theory

Worksheets - Antennas

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

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Circuit Simplification Examples

Textbook

Let’s begin with a semiconductor gate circuit in need of…