ALLPCB
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.
PPG Optical Path and Process Design for Wearable Devices
Wearable PPG measurement guide covering optical path, sub-board layouts, and light-window designs, with recommendations to improve heart rate and SpO2 accuracy.
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.
3CC: Three-Carrier Aggregation in 5G-A
Technical overview of 3CC three?carrier aggregation: principles, deployment schemes, device support, performance gains and applications for high?throughput scenarios.
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.
Differences Between FC Switches and Fiber-Optic Switches
Compare Fibre Channel switches and fiber-optic switches: protocols, deployment, interfaces, SAN suitability, and need for fiber transceivers for switch connectivity.
History of Mobile Communications
Chronological account of mobile communications evolution from 0G to 5G, covering GSM, CDMA, LTE and 3GPP standardization, technical milestones and consolidation.
What Is Link Aggregation and Its Benefits?
Technical overview of link aggregation and LACP, covering static vs dynamic aggregation, LACP operation and timeouts, benefits, and common use cases.
How Are Base Stations Protected Against Lightning?
Technical overview of base station lightning protection: grounding grid design, SPDs, TT power 3+1 configurations and grounding practices for distributed RRU/BBU deployments.
What Is a 5G Private Network? Is a 5G VPN Full Coverage?
Technical overview of 5G private networks: features, coverage limits of 5G virtual private networks, and deployment modes (standalone, non?standalone, hybrid).
What Is 5.5G and How It Differs from 5G and 6G
Detailed technical overview of 5.5G (5G Advanced): its role between 5G and 6G, targets like 10 Gbps, ms latency, massive IoT support, and standardization timeline.
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.
ECG for Wearables: Managing Noise and Power
Technical overview of wearable ECG design using the AD8233 front-end and ADuCM350 MCU: noise mitigation, lead-off detection, evaluation board use, and low-power considerations.
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.
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.
Terahertz Communication and Sensing for Beyond 5G/6G
Overview of terahertz waves for B5G/6G: spectrum allocations, sensing and imaging potentials, and technical challenges for terahertz wireless networks.
Bioimpedance Measurement for Wearable Systems
Technical overview of wearable bioimpedance measurement: electrode half-cell potential and electrode-to-skin impedance, IEC 60601 limits and ADuCM350 circuit solutions.
FPGA, ASIC and RFSoC in 5G Systems
Analysis of RFSoC integration and FPGA vs ASIC trade-offs for 5G RRUs, covering DFE/ADC-DAC integration, power and thermal limits, and deployment flexibility.
Broadband Antennas for Low-Band 5G and Legacy Bands
Multiband antenna guide for sub-6 GHz 5G and legacy cellular bands: compares embedded vs external designs, performance trade-offs, BOM benefits and example modules.