Atomic Radio for Electromagnetic Sensing
Atomic radio and quantum sensing overview for battlefield electromagnetic field measurement, emphasizing high sensitivity, interference immunity, and compact deployable sensors.
RF & Wireless Technology
In the rapidly evolving field of electronics, RF & Wireless Technology stands as a cornerstone for modern connectivity and communication systems. This category delves into the principles and applications of radio frequency (RF) engineering and wireless protocols, essential for designing efficient printed circuit boards (PCBs) that power everything from smartphones to satellite systems. As devices become increasingly interconnected, understanding RF fundamentals ensures reliable signal transmission, minimal interference, and optimal performance in diverse environments. Our collection of articles offers comprehensive guides on RF circuit design, including antenna selection, impedance matching, and signal modulation techniques. Tutorials provide step-by-step instructions for implementing wireless standards such as Wi-Fi, Bluetooth, and 5G, while insights explore emerging trends like IoT integration and millimeter-wave technologies. Best practices focus on troubleshooting common issues, such as electromagnetic compatibility and power efficiency, helping engineers avoid pitfalls in real-world projects. The practical value of RF & Wireless Technology extends to numerous industries, from telecommunications and automotive systems to healthcare devices and smart cities. By mastering these concepts, professionals can develop innovative solutions that enhance data transfer speeds, extend battery life, and support seamless connectivity. Whether you are optimizing PCB layouts for high-frequency operations or evaluating wireless security measures, the knowledge here equips you to tackle complex challenges with confidence. Readers will find value in browsing through these resources to gain a deeper understanding of how RF principles drive technological advancements. Each article builds on core concepts, offering actionable advice that bridges theory and practice for engineers at all levels.
Why RF Filters Are Needed and Where They Are Used
Technical overview of RF filters and acoustic wave filters (SAW vs BAW), comparing frequency range, Q, insertion loss, and selection criteria for wireless systems.
What Is NFC and Its Three Operating Modes
Technical overview of NFC technology, its operating modes (active, passive, peer-to-peer), communication details and applications like card emulation and mobile payments.
Real vs Ideal Signals in SDR-Based Simulations
Summary of SDR mixer nonidealities and IQ imbalance, covering compression, spurs and intermodulation, and their impact on GPS/GNSS simulator design and RF testing.
RF Front-End Growth Drivers and Market Outlook
Analysis of RF front-end market growth driven by 5G band expansion, sub-6 GHz and mmWave, and non-mobile segments like CPE and automotive RF chips.
Center-Focused Network for Real-Time LiDAR Panoptic Segmentation
CFNet: a center-focused network for LiDAR panoptic segmentation using CFFE to simulate absent instance centers and CDM to deduplicate centers for real-time instance segmentation.
Phased-Array Antenna Types and Applications
Phased-array antennas and beamforming overview: principles, linear/planar/frequency-scanned architectures, digital beamforming, 5G mmWave applications, test and calibration challenges.
How Antennas Work and Why They Vary
Technical summary of common antenna designs - dipole, PIFA, horn, Yagi, slot and rectangular patch - covering bandwidth, polarization, directivity, gain and HFSS validation.
Earthquake Alerts: How Wireless Base Station PWS Works
Details ETWS cell-broadcast delivery and why earthquake alerts are often disabled by default, with steps to enable phone popup alerts for imminent quakes.
Bluetooth and Phone Compatibility with Handheld Radios
Guide to bridging Kenwood TH-D74 classic Bluetooth to iOS using an ESP32 TinyPICO BLE-to-classic Bluetooth adapter: hardware, Arduino setup, pairing, and limitations.
Differences Between RFIC and MMIC
RFIC vs MMIC comparison: frequency ranges, power handling, lumped vs distributed design, cost, applications and simulation tools for 10 MHz–60+ GHz systems.
Methods for Measuring Crystal Oscillator Phase Noise
Practical guide to oscillator phase noise: theory, measurement methods, signal connections and analyzer setup using the Keysight E5052B, with guidance on phase jitter conversion.
