RF Power Splitter Design: A Wilkinson Circuit Approach
Explore the design of a 2-way Wilkinson RF power splitter at 800MHz. This design provides equal power division and good impedance matching.
Advertisement
Topic Archive
Articles
Browse the full Articles archive with practical articles, guides, and reference material from RF Wireless World.
Articles
442
Showing
376-400
Pages
16/18
Popular subtopics
Jump across related topic clusters without losing your place.
Advertisement
Article Index
Browse the collection
Showing 376-400 of 442 articles in this archive.
Using Isolators to Protect RF Amplifiers
Learn why placing an RF isolator at an amplifier's output protects it from reflections, preventing damage and maintaining signal integrity.
Communication Systems in Electronics: An Overview
Explore the fundamentals of communication systems in electronics, covering types, components, and applications in wireless and wired technologies.
GSM Radio Link Failure: Causes and Mechanisms
Explores the causes and mechanisms behind radio link failure in GSM networks, covering both mobile and network perspectives.
GSM Handover Failure: Physical Channel Issues and T313 Timeout
This article explains GSM handover failures from UTRAN due to physical channel issues, leading to timer T313 expiry, and outlines the handover procedure.
Mobile Hardware and Software Components: A Comprehensive Guide
Explore the hardware and software components of mobile phones, including the RF transceiver, baseband, OS, and connectivity options.
GSM Control Channel Processing Through Physical Layer
Explore GSM control channel processing in the physical layer, covering SACCH, FACCH, BCCH, PCH, AGCH, and more, as per 3GPP TS 45.003.
Transmission Impairment Types: Effects & Mitigation in Digital Data
Understand transmission impairments in digital communication, their impact on data & effective mitigation/correction techniques to preserve signal integrity. Learn impairments such as attenuation, delay, latency, jitter, dispersion, distortion, crosstalk, echo etc. on digital signal.
GPRS Protocol Stack: Architecture and Layer Functions
Explore the GPRS protocol stack, detailing the functions of Layer 1, Layer 2, and Layer 3, including SM, GMM, SNDCP, LLC, RLC, MAC, and the physical layer.
Troubleshooting GSM CM Service Re-Establishment Failures
Diagnose and resolve frequent call drops in GSM networks due to CM Service Re-Establishment failures. Understand the process, key messages, and troubleshooting steps.
LAU Reject: PLMN Not Allowed Explained
Understanding the 'PLMN not allowed' cause in Location Area Update (LAU) rejects and its implications for mobile station access to different networks.
LAU Reject: Roaming Not Allowed Explained
Learn why a mobile station receives an LAU reject with the cause 'Roaming Not Allowed' and what it signifies.
LAU Reject: No Suitable Cells in Location Area Explained
Understand the 'No Suitable Cells' LAU reject cause in mobile networks. Learn why it happens and how the mobile station responds.
GSM Downlink Packet Switched (PS) Call Flow Explained
Learn about the packet switched (PS) call flow in GSM downlink for data transfer. Understand GPRS attach, PDP context activation, and the channels involved.
LAU Reject Cause: Location Area Not Allowed
Explanation of the 'Location Area Not Allowed' reject cause in Location Area Update (LAU) procedures, its implications, and examples.
GSM Mobile Originated (MO) Call Flow Explained
Explore the GSM Mobile Originated (MO) call flow, detailing the messages exchanged between the mobile device and network layers during call setup and release.
GSM Mobile Terminated (MT) Call Flow Explained
Understand the GSM Mobile Terminated (MT) call flow, including message exchanges between the UE and network layers, and channels used.
GSM Uplink Packet Switched Data Call Flow
Explore the packet switched (PS) data call flow in GSM uplink, detailing GPRS attach and PDP context activation between mobile devices and network elements.
GSM Handover/Cell Reselection Failures: CRC Error Analysis
Explore the causes of GSM handover and cell reselection failures due to CRC errors, including interference, power issues, and algorithm limitations.
GSM Traffic Channel Processing in the Physical Layer
Explore GSM traffic channel processing through the physical layer, covering speech and data channels as per 3GPP TS 45.003.
GSM Frame Error Rate (FER) Testing: 900MHz & 1800MHz Limits
Overview of Frame Error Rate (FER) testing limits for GSM user equipment (UE) in the 900MHz and 1800MHz frequency bands according to 3GPP TS 51.010.
GSM Burst Measurement Failure: Timing Advance Error Explained
Understand GSM timing advance errors, their impact on burst measurements, and how test systems like the Rohde & Schwarz CRTU validate mobile transmissions.
GSM Issue: UE Receives DM Instead of UA After Sending SABM
Explanation of a GSM network issue where a UE sends a SABM frame but receives a DM response instead of the expected UA, indicating connection establishment failure.
GSM Protocol Stack: Layer 3 Overview
Explore GSM Layer 3 responsibilities, covering RRM, MM, CM, SCCP, and BSSMAP protocols. Understand message types and protocol discriminators.
GSM Physical Layer (Layer-1) Explained
Explore the GSM physical layer (layer-1) functions, including baseband processing, FEC, ciphering, burst formation, and modulation for mobile station transmission.
Advertisement