All About Circuits

Latest Wireless/RF Articles and Videos

Categories

Understanding How Ring Modulators Produce AM Signals

Understanding How Ring Modulators Produce AM Signals

Among modulator circuits, the ring modulator stands out as one of the most effective for generating AM signals. Learn why in this article.


Silicon Labs Rolls Out ‘Lite’ Low-Power Bluetooth LE SoCs

Silicon Labs Rolls Out ‘Lite’ Low-Power Bluetooth LE SoCs

Silicon Labs has introduced new Bluetooth Low-Energy SoCs designed for a variety of wireless applications in commercial and industrial markets.


News Feb 07, 2025 by Arjun Nijhawan
Research Shorts: 5 Studies Make Headway in Lasers, Antennas, and Beyond

Research Shorts: 5 Studies Make Headway in Lasers, Antennas, and Beyond

From tunable metamaterials inspired by chameleons to radiation-resistant organic solar cells, these discoveries address critical challenges in fields like defense, space exploration, communication, and manufacturing.


News Feb 03, 2025 by Luke James
Understanding the Transmission-Line Peaking Class F Amplifier

Understanding the Transmission-Line Peaking Class F Amplifier

Learn how this power amplifier uses a quarter-wavelength transmission line to achieve up to 100% efficiency.


MIT’s Tiny Wireless Antennas Use Light to Monitor How Cells Talk

MIT’s Tiny Wireless Antennas Use Light to Monitor How Cells Talk

The wireless antennas use light to detect minute electrical signals in liquid environments, showing promise for biosensing in medical diagnoses and treatments.


News Jan 30, 2025 by Luke James
How Do Switching Modulators Generate AM Signals?

How Do Switching Modulators Generate AM Signals?

Using the example of a diode-bridge modulator, we examine the basic principles of switching modulators for AM signal generation.


TE Connectivity’s IoT Wireless Vibration Sensors | New Product Brief

TE Connectivity’s IoT Wireless Vibration Sensors | New Product Brief

TE Connectivity's IoT Wireless Vibration Sensors in the 85x1N (BLE 5.0) and 89x1N (LoRaWAN® Class A) series, deliver precise and reliable industrial monitoring solutions. Watch and learn all about their features, specs, applications, and more!


U-blox Debuts Wi-Fi 7 Module for Apple CarPlay and Android Auto

U-blox Debuts Wi-Fi 7 Module for Apple CarPlay and Android Auto

U-blox designed its first automotive-grade Wi-Fi 7 module to enhance in-vehicle connectivity with high throughput, low latency, and support for multiple users.


News Jan 23, 2025 by Joshua Tidwell
Nordic Uses CES 2025 to Springboard Into End-to-End IoT Connectivity

Nordic Uses CES 2025 to Springboard Into End-to-End IoT Connectivity

In this CES exclusive, All About Circuits met with Nordic Semiconductor team to learn how the company plans to expand beyond its Bluetooth roots.


News Jan 20, 2025 by Jake Hertz
Designing a Third-Harmonic Peaking Class F Amplifier for Maximum Efficiency

Designing a Third-Harmonic Peaking Class F Amplifier for Maximum Efficiency

We explore how adding a small amount of voltage ripple to a Class F amplifier increases its efficiency, then work through a design example.


Morse Micro Intros Wi-Fi HaLow SoC Claiming Longest Reach

Morse Micro Intros Wi-Fi HaLow SoC Claiming Longest Reach

At CES, All About Circuits had an exclusive interview with Morse Micro CEO Michael De Nil. We discussed their new Wi-Fi HaLow SoC and more.


News Jan 16, 2025 by Jake Hertz
Princeton Leverages AI to Take On the Legwork of Wireless Chip Design

Princeton Leverages AI to Take On the Legwork of Wireless Chip Design

As a complement to human creativity, Princeton researchers used deep learning to create faster, high-performance wireless chip designs.


News Jan 14, 2025 by Luke James
Introduction to the Balanced Modulator for AM Signals

Introduction to the Balanced Modulator for AM Signals

Learn how the balanced modulator addresses shortcomings of the square-law modulator when generating DSB-SC and conventional AM signals.


U-blox Zeroes In On Wearable Accuracy With New GNSS Chip

U-blox Zeroes In On Wearable Accuracy With New GNSS Chip

U-blox has released a GNSS chip for wearable devices, featuring low power consumption, LEAP technology for energy efficiency, and upgradeable firmware for enhanced positioning.


News Jan 10, 2025 by Joshua Tidwell
Understanding the Third-Harmonic Peaking Class F Amplifier with Maximally Flat Waveforms

Understanding the Third-Harmonic Peaking Class F Amplifier with Maximally Flat Waveforms

In this article, we derive the design equations for the third-harmonic peaking Class F amplifier with the flattest possible collector voltage waveforms.


Historical Engineers: Godfrey Hounsfield, the Brains Behind the CT Scan

Historical Engineers: Godfrey Hounsfield, the Brains Behind the CT Scan

Who was Godfrey Hounsfield, and how has his work contributed to healthcare? Here’s a look at his life and accomplishments.


News Jan 03, 2025 by Luke James
Industry Weighs in With 2025 Forecasts—Part 1: General Predictions

Industry Weighs in With 2025 Forecasts—Part 1: General Predictions

On this New Years Day, we share 2025 predictions from leading companies in our industry.


News Jan 01, 2025 by Jeff Child
2024’s Top Technical Articles and More

2024’s Top Technical Articles and More

As 2024 comes to an end, we look back on the year's most popular technical articles, industry articles, and projects.


News Dec 30, 2024 by Abby Garfinkle
Understanding the Square-Law Modulator for Generating AM Signals

Understanding the Square-Law Modulator for Generating AM Signals

In this article, we explore the foundational concepts of square-law modulators and examine some circuit implementations.


Tradeshows Help Make This a People Business—A Look Back at Four 2024 Events

Tradeshows Help Make This a People Business—A Look Back at Four 2024 Events

Merry Christmas! Never forget that our business is a people business. Enjoy this review of four of the trade shows All About Circuits attended this year, and the great people we met.


News Dec 25, 2024 by Jeff Child