|
|
January 2012
Application and Theory of Dielectric Materials in RF/Microwave Systems
Maxwell’s equations define two terms which determine the response of a material to electromagnetic fields. These are the electric permittivity e and the magnetic permeability µ. If these quantities are known for a material, then the reaction of a wave to the material is completely determined.
|
|
|
March 2010
Over the Air Testing of MIMO Mobile Terminals
The performance requirements of new mobile terminals will continue to increase dramatically due to the growing demand for higher data rate applications
|
|
|
February 2010
Understanding Cable & Antenna Analysis
By Stefan Pongratz, Anritsu Corporation
The cable and antenna system plays a crucial role of the overall performance of a Base Station system. Degradations and failures in the antenna system may cause poor voice quality or dropped calls.
|
|
|
November 2009
Improving 4G Wireless Broadband Product Design through Effective Channel Emulation Testing
Multiple-Input Multiple-Output (MIMO) technology is the foundation of the next generation of mobile broadband wireless products and systems such as those defined by 3GPP for LTE and by other industry groups for other 4G standards.
|
|
|
March 2009
Cabling Requirements for Harsh Environments
This white paper will explain the difference between traditional commercial controlled environments and harsh, industrial environments as well as the type of cabling and interconnectivity products to specify when designing networks for the latter. Additionally this white paper includes information on the two popular standards for measuring and rating harsh environments, IP and NEMA.
|
|
|
Mobile WiMAX Solutions, Moving the Momentum Forward
Fujitsu Microelectronics America, Inc. (FMA), a global leader in WiMAX-compliant broadband wireless technology, has released a white paper...
|
|
|
Understanding Power Factor and Input Current Harmonics in Switched Mode Power Supplies
The proliferation of AC-DC switched mode power supplies has resulted in strict limits being imposed on AC input current power factor and harmonic content.
|
|
|
December 2008
Trust me – I’m not a Doctor – The changing nature of Healthcare
Healthcare is about to change as two disruptive forces come together.
|
|
|
Wireless Communication on the Train; Surfing at 300 km/h
Wireless transmission of information or entertainment used in transportation is more demanding than stationary wired or wireless operations.
|
|
|
June 2008
ARM Security Solutions and Numonyx Authenticated Flash
Through a combination of integrated hardware and software components, ARM TrustZone* technology provides the basis for a highly-protected system architecture targeted specifically at securing consumer products such as mobile phones, PDAs, set-top boxes or other systems running open Operating Systems (OS), such as Symbian OS, Linux and Windows CE.
|
|
|
Basics of Phase Change Memory Technology
Phase Change Memory (PCM) is a term used to describe a class of non-volatile memory devices that employ a reversible phase change in materials to store information.
|
|
|
Demystifying Embedded Code Storage
Embedded system designers have a variety of code execution methods to choose from: eXecute-In-Place (XIP), Fully Shadowed and Demand Paging. Using the best method is the key for a cost-effective solution.
|
|
|
Flash File Systems Overview
Flash memory is a non-volatile memory, which allows the user to electrically program (write) and erase information. The exponential growth of flash memory has made this technology an indispensable part of billions of electronic devices.
|
|
|
November 2007
Key Criteria for Evaluating Technologies for Effective Firmware Over-The-Air (FOTA) Updating of Mobile Phones
This paper provides a detailed discussion of the key considerations for evaluating Firmware Over The Air (FOTA) updating technologies.
|
|
|
Orthogonal Frequency Division Multiplexing
Orthogonal frequency division multiplexing (OFDM) is a form of digital
modulation used in a wide array of communications systems.
|
|
|
Principles of Updating Mobile Firmware Over-the-Air (FOTA)
Firmware Over-the-Air (FOTA) technology enables device manufacturers and network operators to deliver updated firmware to mobile phones in consumers' hands.
|
|
|
SISO to MIMO: Moving Communications from Single-Input
Single-Output to Multiple-Input Multiple-Output
Commercial radio technology has reached an inflection point, similar to the transition from analog to digital
|
|
|
August 2007
White Paper from National Semiconductor on Current Mode Modeling
This paper represents the most comprehensive and up-to-date information of its kind on current-mode control.
|
|
|
July 2007
Buying A Signal Analyzer
There are many analyzers available in the market today. Some are very specialized, while others offer more generic radio measurement capability; some are called spectrum analyzers, while others are called signal analyzers.
|
|
|
Software-defined radio: The next wave in RF test instrumentation?
Test equipment manufacturers are constantly challenged to develop new solutions for testing their customers’ latest devices, but they’ve traditionally developed specialized hardware to meet this challenge.
|
