What Causes Passive Intermodulation and How to Solve It

Explore passive intermodulation (PIM) in RF systems: causes, material/contact nonlinearity, real satellite cases, and mitigation tips for engineers.

NR Frame Structure and Flexible Subframe Design

Huawei NR frame structure design: flexible numerologies, coexistence, subframe scaling, TDD/configurable HARQ, unlicensed and MIMO considerations.

Terahertz Technology: Global Development Status

Terahertz waves explained: properties, sources, detectors, communication, imaging and future applications in sensing, security and high-speed links.

Why Modulate Signals? Common Linear Modulation Types

Learn why modulation adapts baseband signals to bandpass channels, definitions, AM/FM/PSK/QAM, linear vs nonlinear methods and purposes.

FM Demodulation Circuits and Characteristics

Learn FM demodulation: FM-to-AM conversion, resonant discriminators like Foster-Seeley and ratio detectors, and limiter roles in radio audio.

Types of Network Communication and Transmission Media

Explore network communication types, wired vs wireless, TCP vs UDP, and transmission media like twisted pair, coaxial, fiber and radio waves.

Bluetooth Adapter vs Receiver vs Transmitter Explained

Understand Bluetooth adapter vs receiver vs transmitter - what they do and how to choose by compatibility, audio quality, range and battery.

TDD vs FDD Duplexers Explained

Learn how duplexers enable simultaneous transmit/receive, compare TDD vs FDD, and understand filters, circulators, and spectrum trade-offs.

RF SNR Calculation and Simulation

Learn how to calculate and simulate RF link SNR: power-based and FFT-based methods, MATLAB snr usage, and practical examples for realistic channels.

LEO Satellite Communication: Basic Principles

Explore LEO satellite communication architecture, main components, operation steps and benefits like low latency and global connectivity.

RF Front-End Market to Reach $25.4B by 2025

RF front-end market: $22B global in 2022; $15.2B to $25.4B (2019–2025); China ≈$7B. Top segments: PAMiD, DiFEM/LFEM, PAMiF

Typical Architecture of Wireless Sensor Networks

Explore wireless sensor networks (WSNs): architecture, sensor & sink nodes, protocols (IEEE 802.15.4/ZigBee), applications and research challenges.

Phased Array Antennas for Space-Ground Networks

Phased array antennas in space-ground integrated networks: architectures, beamforming, challenges, and future trends.

Methods for Generating SSB Signals

Overview of Single-sideband (SSB) modulation and 5G NR SSB: generation, USB/LSB extraction, bandwidth, power, PSS/SSS/PBCH roles.

Wireless Microphone System: Components & Operation

Learn wireless microphone systems: components, how transmitters and receivers work, and key tech: automatic frequency switching, noise suppression.

Antenna Basics and Ceramic Antenna Principles

Ceramic antennas explained: operating principles, module design, PCB integration, advantages and limits for GPS, Bluetooth and IoT devices.

How to Transmit and Receive Signals

Learn methods and equipment for signal transmission and reception, key considerations, and how transceivers and systems measure/display distance.

NearLink Wireless System Architecture and Operation

Learn about NearLink: Huawei's short-range, high-speed, low-latency wireless tech with ultra-reliability, SLB/SLE interfaces and G/T node architecture

Common Wireless Technologies Compared

Explore radio principles, transmitter/receiver structure and compare wireless technologies like Wi-Fi, Bluetooth, Zigbee, LTE and 5G.

2.4 GHz vs 433 MHz Wireless Modules

Compare 2.4 GHz vs 433 MHz wireless modules: frequency, range, data rates, applications, and antenna, power and interference tips for reliable comms.