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Bluetooth LE: Security Modes and Procedures Explained

In Bluetooth LE (BLE), security is a multifaceted beast. Learn the three main security modes of BLE, along with five critical BLE security procedures.

About 6 days ago by Nthatisi Hlapisi

Assessing Conductor and Dielectric Losses in Transmission Lines

Understanding the causes of attenuation in a transmission line can help us choose the right solutions for our application. In this article, we’ll learn about attenuation caused by conductor loss and dielectric loss.

September 15, 2023 by Dr. Steve Arar

AI Networking Chip Startup, Enfabrica, Receives $125 Million in Series B Funding

With Nvidia now added to its list of strategic investors, Enfabrica has opened pre-orders on systems using its AI era fabric switch IC

September 15, 2023 by Duane Benson

Understanding Bluetooth LE Pairing—Step by Step

Pairing is an important concept in Bluetooth LE. Let’s examine the fundamentals of Bluetooth LE pairing, outlining how LE devices securely share keys between trusted devices.

September 10, 2023 by Nthatisi Hlapisi

The Challenge of Integrating an Antenna Into Small IoT Devices

Designing antennas for compact IoT devices is a tricky task, but an increasingly important one. Learn more about this challenge and how to meet it.

August 18, 2023 by Nthatisi Hlapisi

Understanding Security Keys in Bluetooth Low Energy

Learn the roles of the three security keys in Bluetooth LE—Long Term Key (LTK), Connection Signature Resolving Key (CSRK), and Identity Resolving Key (IRK).

August 13, 2023 by Nthatisi Hlapisi

Behind the Launch of Jupiter 3, the World’s Largest Comms Satellite

On its way to geosynchronous orbit, the heaviest commercial satellite offers unprecedented coverage thanks to its unique design.

August 03, 2023 by Aaron Carman

Whitening Filters Help Low-Power Radios Tackle Issues Caused by Long Identical Bit Sequences

Learn how whitening filters solve problems in low-power radios when transmitting long identical bit sequences. Explore their significance in protocols like BLE and ZigBee.

August 02, 2023 by Nthatisi Hlapisi

Startup HaiLa Aims Its Ambient IoT Tech at a ‘No Batteries’ IoT Future

Emerging from stealth mode, HaiLa believes they can enable a future of IoT nodes without batteries.

August 01, 2023 by Jake Hertz

Vulnerabilities and Attacks on Bluetooth LE Devices—Reviewing Recent Info

To understand known vulnerabilities and attacks on Bluetooth LE devices, we review some studies from the past 4+ years.

July 16, 2023 by Nthatisi Hlapisi

Gain Definitions for the Y-Factor Method of NF Measurements: Available Gain or Insertion Gain?

The Y-factor method is a widely used technique for measuring the gain and noise figure (NF) of RF components. This article will help you understand the differences between the insertion gain and the available gain, while avoiding potentially significant errors when measuring the noise figure.

June 28, 2023 by Dr. Steve Arar

Qualcomm Releases Satellite Modems for Remote IoT Asset Tracking

The new modems are designed for IoT non-terrestrial networks, making them potentially useful for remote monitoring and asset tracking.

June 27, 2023 by Jake Hertz

Securing BLE Connections—An Overview of the Security Protocol

Learn about Bluetooth LE's security features and tools, how to use them, and understand how they keep connections secure.

June 23, 2023 by Nthatisi Hlapisi

Breaking Down the BLE Link Layer—The 7 States of Bluetooth LE Radio

Explore the seven states of the Bluetooth LE radio, how the link layer state machine manages the LE radio, and the roles of these states in wireless communication.

June 16, 2023 by Nthatisi Hlapisi

Silicon Labs Rolls Dual-band SoC for Long-range Wireless Protocols

A new SoC from Silicon Labs supports multiple protocols and is optimized for Amazon Sidewalk.

June 12, 2023 by Jake Hertz

Explore the Y Factor Method for Noise Figure Measurement

Learn about measuring the noise figure (NF) using the Y factor method. We'll dive into using this to find the noise factor, how to calibrate for noise temperature, and much more.

June 11, 2023 by Dr. Steve Arar

Broadcom to Supply Apple’s 5G Components in the US

Despite Apple’s internal efforts, the company still needs to rely on third parties for wireless chips.

May 24, 2023 by Jake Hertz

Exploring Single Stub Impedance Matching Through Smith Chart Examples

Learn about impedance matching using a single stub, transmission lines, and immittance Smith chart examples.

May 05, 2023 by Dr. Steve Arar

5G Base-Station-on-a-Chip Company EdgeQ Closes $75M in Series-B Funding

With its 5G base-station-on-a-chip SoC leading the way, EdgeQ has closed a $75 million round of investment funding.

April 19, 2023 by Jeff Child

TI Launches Pair of Wi-Fi 6 Companion ICs to Serve IoT System Designs

As Wi-Fi 6-enabled IoT devices proliferate into the billions, TI’s new Wi-Fi 6 companion chips are aimed at meeting the challenges associated with this crowded landscape.

April 18, 2023 by Jeff Child