All About Circuits

Latest Communication Articles and Videos

Categories

Altera Unveils a New Agilex FPGA Portfolio and Agentic AI Developer Tool

Altera Unveils a New Agilex FPGA Portfolio and Agentic AI Developer Tool

Announced today, Altera has a new FPGA portfolio along with an AI expert companion designed to accelerate development for next-generation digital and physical AI fabrics.


News Oct 28, 2026 by Jeff Child
Researchers Turn a Laser-Ionized Air Filament Into a Radio Antenna

Researchers Turn a Laser-Ionized Air Filament Into a Radio Antenna

A plasma filament driven through a contactless capacitive ring increased received signal strength 2.5 times at 30 MHz.


News Oct 26, 2026 by Luke James
How Pulse Duration Shapes Distortion and Recovery in Flat-Top PAM

How Pulse Duration Shapes Distortion and Recovery in Flat-Top PAM

The aperture effect rolls off high message frequencies in flat-top PAM. Here’s how pulse duration limits that distortion to under 0.5% and when an equalizer helps.


20 MHz Magic: How a Slow Clock Delivers Sub-Meter Ranging Around Mars

20 MHz Magic: How a Slow Clock Delivers Sub-Meter Ranging Around Mars

Japan’s MMX mission relies on NEC’s LIDARX chip to achieve sub-meter ranging precision around Phobos with a 20 MHz clock, balancing space-grade reliability and dynamic range.


News Oct 22, 2026 by Robert Martin
Keysight Fits Two 20 GHz Signal Generators Into a Single 2U Chassis

Keysight Fits Two 20 GHz Signal Generators Into a Single 2U Chassis

The PSG XG7-class SG6311A achieves a phase noise of -135 dBc/Hz at 10 GHz and calibrated output power up to +22 dBm across both channels.


News Oct 20, 2026 by Luke James
Qorvo QPF5012 8.5-10.5GHz 10W Transmit Receive Module | New Product Brief

Qorvo QPF5012 8.5-10.5GHz 10W Transmit Receive Module | New Product Brief

Qorvo QPF5012 8.5-10.5GHz 10W Transmit Receive Module designed for 8.5 GHz to 10.5 GHz applications requiring powerful transmission and sensitive signal reception. Watch and learn all about their features, specs, applications, and more!


new products Oct 20, 2026 by Mouser
Introduction to Flat-Top Pulse-Amplitude Modulation

Introduction to Flat-Top Pulse-Amplitude Modulation

Flat-top PAM holds each sample’s amplitude for the pulse duration, weighting the spectrum with a sinc function. Here’s how that weighting leads to the aperture effect.


Summit 2026 - Precision Timing: The Silent Dependency in High-Reliability Systems

Summit 2026 - Precision Timing: The Silent Dependency in High-Reliability Systems

Timing failures rarely announce themselves. They usually surface as system instability. Join us for a look at how SiTime's precision timing solutions keep that dependency silent for decades.


News Oct 14, 2026 by Dale Wilson
Summit 2026 - The Advantages of Reverberation Chambers for Automotive EMC Testing

Summit 2026 - The Advantages of Reverberation Chambers for Automotive EMC Testing

EMC testing is getting more complex. Discover how reverberation chambers deliver fast, repeatable, energy-efficient stress testing for autonomous, connected, electrified vehicles.


News Oct 14, 2026 by Rohde & Schwarz
Understanding Pulse‑Amplitude Modulation: Natural‑Sampling Explained

Understanding Pulse‑Amplitude Modulation: Natural‑Sampling Explained

Multiplying a message by a pulse train replicates its spectrum at every harmonic. See why a 1/3 duty cycle and 4x oversampling stretch the bandwidth roughly 12-fold.


Hubble Raises $200M to Connect Standard Bluetooth Devices by Satellite

Hubble Raises $200M to Connect Standard Bluetooth Devices by Satellite

The Seattle startup has reached a $1.6 billion valuation by turning Bluetooth LE chips into globally trackable assets—all the way from space.


News Oct 07, 2026 by Luke James
Interference, Pre-Emphasis, and the Capture Effect in FM and PM Systems

Interference, Pre-Emphasis, and the Capture Effect in FM and PM Systems

Interference in FM grows stronger with frequency offset, until pre-emphasis flattens the curve. See why a signal just twice as strong as a rival broadcast can completely capture the channel.


RLC Roundup: New Passives Push Power, Frequency, and Temp Limits

RLC Roundup: New Passives Push Power, Frequency, and Temp Limits

New passive components from TDK, Vishay, Murata, and Bourns address higher capacitance, RF power handling, automotive power circuits, and high-temperature operation.


News Sep 29, 2026 by Joshua Tidwell
The Benefits and Limitations of Pre-Emphasis and De-Emphasis in FM Noise Reduction

The Benefits and Limitations of Pre-Emphasis and De-Emphasis in FM Noise Reduction

Pre-emphasis and de-emphasis boost noise performance in FM, but only up to a point—push the gain too far and you risk overmodulation.


Pre-Emphasis and De-Emphasis Filtering in FM Systems

Pre-Emphasis and De-Emphasis Filtering in FM Systems

Simple first-order pre-emphasis and de-emphasis filters can boost FM receiver SNR by more than 13 dB by exploiting the spectral differences between signal and noise.


Hardware-Based Security for FPGAs: Protecting Against Evolving Threats

Hardware-Based Security for FPGAs: Protecting Against Evolving Threats

Learn how rising security threats, quantum computing, and strict regulations demand FPGA architectures with integral hardware security and crypto agility for long-term compliance.


Securing Cloud-Based PCB Design Workflows for ITAR-Controlled Defense Programs

Securing Cloud-Based PCB Design Workflows for ITAR-Controlled Defense Programs

Legacy air-gapped ECAD systems struggle to support modern engineering teams. Learn how Zero Trust and GovCloud enclaves enable compliant collaboration on export-restricted hardware IP.


FM Threshold-Extended Demodulators: Insights on FMFB and PLL-Based Designs

FM Threshold-Extended Demodulators: Insights on FMFB and PLL-Based Designs

Worked examples quantify just how much the FMFB loop shrinks noise bandwidth. We also show how the PLL demodulator offers a simpler alternative for reducing threshold.


How Does Miniaturization Influence Microwave Filter Performance?

How Does Miniaturization Influence Microwave Filter Performance?

Scaling down RF circuit footprints requires balancing board space against critical trade-offs. Discover how loading methods and high-dielectric substrates impact Q factor and insertion loss.


Three Research Teams Take Different Routes to Control Light

Three Research Teams Take Different Routes to Control Light

Papers from École Polytechnique, Seoul National University, and Harvard tackle optical gain, on-chip buffering, and component footprint.


News Aug 20, 2026 by Luke James