ALLPCB
What air interface protocol stacks do 5G base stations support?
Technical overview of the 5G protocol stack and air-interface protocols, describing Layer 2 functions, interfaces and key protocols for base station implementations.
South Korea Dedicated 5G Spectrum: Current Use and Outlook
Technical summary of South Korea's policy and licensing for private 5G, detailing 28 GHz deployments, licensees, and enterprise self-deployment including Samsung.
Differences Between 5G and 4G Routers
Compare 5G routers and 4G routers: differences in frequency bands, transmission speed, coverage, latency, and device capacity to guide deployment decisions.
5G RF Frontend Advances for NSA/SA Networks
Explore advances in 5G RF frontend for NSA/SA networks, enhancing signal quality and efficiency in smartphones.
Phased Array Antenna Types and Applications
Technical overview of phased-array antennas and beamforming: operating principles, array types, digital beamforming, test/calibration, and scalability challenges for 5G mmWave.
EmStat Pico: Compact embedded potentiostat module
Overview of EmStat Pico potentiostat system-on-module: integration, development board, PSTrace scripting, and example measurements (pH OCP, cyclic voltammetry, EIS).
Frequency Reuse and Multiple Access in CDMA Networks
Technical overview of CDMA and frequency reuse, describing how spreading codes enable simultaneous voice and data, plus capacity trade-offs and interference behavior.
Apple Watch SE teardown and S5 comparison
Teardown of the Apple Watch SE 40 mm GPS: LTPO OLED display, S5 processor and W3 wireless SoC, 245 mAh battery, Series 5-like internals and no cellular components.
What Is a Distributed 4G Base Station?
Technical overview of distributed base station architecture, components and roles: BBU, RRU, RF units and fiber transport; deployment benefits and latency trade-offs.
5G RF Power Amplifier Architectures Explained
Technical overview of power amplifier design and PA architectures: load?line and efficiency principles, combining methods (current/voltage/power), push?pull, balanced, Doherty.
5G+PLC System Architecture and Applications
Technical white paper and field practices on 5G+PLC integration: requirements, architecture, deployment, use cases and challenges for industrial control in discrete manufacturing.
Flexible thermoelectric device for wearable cooling
Report on a self-healable, recyclable flexible thermoelectric device for wearable energy harvesting and personal thermal management, achieving 13.8°C local cooling.
Huawei Base Station PCB Circuit Design Overview
Huawei RRU3908 teardown detailing base station RF front-end, CPU, ADC/DAC chains, clocking and LDMOS power amplifier components and signal paths.
WPS vs 5G and Wi-Fi 6 vs Wi-Fi 5: Wall Penetration
Clarifies WPS vs 5G and compares Wi-Fi 5 and Wi-Fi 6 performance on wall penetration and throughput, noting MIMO, OFDMA and theoretical maximum rates.
5G Industrial Internet for Safety in Fine Chemicals
Six case studies of 5G industrial internet deployments—private 5G, MEC, edge computing, digital twins and AI—demonstrate safety, efficiency and predictive maintenance gains.
Three Reliable Enterprise Network Topologies
Technical guide to reliable enterprise campus network design, covering gateway placement, redundancy and a stacking with link aggregation deployment example and best practices.
5G NR FCC Overview and Test Methods
Guide to FCC certification for 5G user equipment: required tests and test-station setup, covering RF output power, occupied bandwidth, EVM and spurious emissions.
TI bq25190 Linear Battery Charger Datasheet
TI bq25190 linear battery charger for wearable devices: integrated power-path, buck and buck-boost regulators, LDOs, ADC, I2C programmability and ultra-low quiescent current.
Key Technical Findings Inside Huawei Mate 60 Pro
Technical teardown and lab tests of Huawei Mate 60 Pro: China-made modem and RF front end, 5G Rel.15 limitations, and two-way satellite capability.
What Is Satellite Internet? Components and Uses
Overview of satellite internet: system components, LEO constellations, application scenarios, deployment status, and trends in spectrum competition and terrestrial integration.