FROM THE EDITOR'S DESK

  • Why Is Apple Stockpiling RF Engineers?
    Why Is Apple Stockpiling RF Engineers?

    Paul Chang, former principal engineer, project manager, and RF chip lead at Broadcom, recently migrated to Apple, further substantiating rumors that Apple plans on designing and building baseband processors in-house. Chang worked at Broadcom for over 11 years, helping develop a “series of cellular mobile communications CMOS semiconductor products,” including a number of 65 nm quadband single -chip transceivers. 

  • What Can Micro-Windmills Teach Us About The Future Of Medical Device Design?
    What Can Micro-Windmills Teach Us About The Future Of Medical Device Design?

    At some point in the not-so-distant future, you’ll be able to recharge your smartphone by waving it about in the air for a few moments or (less conspicuously) by simply holding it out in a stiff breeze.What does this have to do with medical device design, you ask? Quite a lot, as it turns out.

  • Millimeter Waves For 5G: Intel Among Those Making Strides
    Millimeter Waves For 5G: Intel Among Those Making Strides

    Recent updates from organizations including Intel, indicate that the development of 5G mobile device technology is well underway, and that 5G networks will utilize millimeter waves.

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RECENT ARTICLES

EM Simulation of Automotive Radar Mounted in Vehicle Bumper

Trends in automotive safety are pushing radar systems to higher levels of accuracy and reliable target identification for blind spot detection and collision prevention assistance.  Consequentially, engineers need to better understand how mounting brackets, fascia, paint color, and bumper assemblies affect the far field radiation patterns of 24 GHz and 77 GHz automotive radar systems. 

Modeling of Large Microwave Cavities for Industrial and Scientific Applications

This white paper discusses the modeling of microwave cavities and demonstrates how a system for heating test samples was optimized using electromagnetic simulation.

Modeling A Printed VHF Balun Leveraging EM Simulation Techniques

The use of printed microstrip couplers in power amplifiers operating at microwave frequencies above 1GHz has been well established and numerous papers have been written about the design of such structures. It is surprising, however, that little has been written about the subject of printed baluns (BALanced to UNbalanced)— electrical devices that convert between a balanced signal and an unbalanced signal. Even more surprising is that the dominant approach to power combining at VHF and UHF is via coaxial cables, which comes with inherent assembly, cost, and thermal issues. By AWR with contributions from Dr. Dominic FitzPatrick of PoweRFul Microwave

IP Technology Brings Freedom And Flexibility To Tactical Communications

The last time you installed a network application on your home computer, did you need a project manager and a multimillion-dollar budget? You might have set up an email client or Skype so you could chat with people on the other side of the world. In doing that, you integrated with the largest network in the world in only a few clicks. So why, to have a new tactical application, do you have to wait months, or even years, and secure a huge budget to pay several layers of contractors? By Stuart Marsden, tactical communications consultant and former British Army Major

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GUEST COLUMNS

  • EM De-Embedding Magic – Part I: What’s the Problem, Anyway?
    EM De-Embedding Magic – Part I: What’s the Problem, Anyway?

    Way, way back in 1986, when I was developing the Method of Moments software that we are selling today [1], [2], I encountered (and overcame) many problems. One problem first became apparent when I was demonstrating prototype software at HP (now Agilent, soon to be Keysight Technologies) in Santa Rosa, one of my research sponsors. The results did not look so good. When we compared the results to measurement, the differences steadily increased as we went up in frequency. My funding from HP could be in jeopardy. Not good. By Dr. James C. Rautio, president, CEO, and founder, Sonnet Software, Inc.

  • RF Signal Capture And The Beauty Of The Digital Domain
    RF Signal Capture And The Beauty Of The Digital Domain

    From defense systems to wireless communications networks, bandwidth is an issue to be reckoned with. In the defense industry, electronic warfare (EW) systems in particular have always needed as much of this commodity as it can get, but it has now been joined by radar systems that have operating bandwidths in excess of 1 GHz, which presents significant challenges for their designers as well as those who must measure their performance. By Jim Taber, director of sales and marketing, X-COM Systems

  • What Is The Future Of RF Technology For Electronic Warfare Systems?
    What Is The Future Of RF Technology For Electronic Warfare Systems?

    There are some common themes that span across electronic warfare (EW), radar, and communications that are going to underpin future system design. These include the ability to operate across wider bandwidths and at higher frequencies while generating suitable output power in the transmit chain or offering sufficient low noise capabilities in the receiver. Practical requirements related to portability, flexibility, and modularity also dictate design, and other considerations include cost and reliability.

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RF GLOBALNET WELCOMES OUR NEWEST SUPPLIER

RF Globalnet Welcomes Our Newest Supplier

Delcross Technologies is a commercial software company that develops innovative simulation software for challenging RF cosite interference modeling and high frequency computational electromagnetic (CEM) software with a special focus on electrically large problems.  Their EM software solutions are aimed at solving installed antenna performance and radar signature problems. Learn More.

FEATURED PRODUCTS

<B>XFdtd&reg;: 3D Electromagnetic Simulation Software</B>

XFdtd®: 3D Electromagnetic Simulation Software

XFdtd 3D EM Simulation Software provides engineers with powerful and innovative tools for modeling and EM simulation. It’s tremendously fast by leveraging NVIDIA’s most advanced CUDA-enabled GPUs. And it’s easy to use and engineered to replicate real-world processes.

XF7 simplifies workflow with a streamlined user interface, cross-platform functionality, and industry leading GPU Acceleration and MPI technology. XF7 includes XStream®, which tremendously improves EM simulation performance by leveraging the powerful NVIDIA graphics processing units (GPUs) available in modern video cards to make ultra-fast FDTD numerical computations. XStream enables XF calculations to finish in minutes as compared to hours or even days using a CPU only. XStream capability is bundled at no additional cost with XF.  Remcom has also extended XStream’s GPU capabilities with MPI technology, allowing XF to access additional GPU cards through clustering.  Combined with Unlimited Memory Support, XF7 can simulate massive problems exceeding billions of cells.

Other notable features include XACT Accurate Cell Technology, a sophisticated meshing capability for resolving the most intricate designs with fewer computational resources, and the XTend Script Library, a suite of pre-loaded and customizable scripts for creating custom features.

Integrated Receiver Front Ends

Integrated Receiver Front Ends

CPI uses ferrite circulator and balanced hybrid duplexing technology to manufacture integrated receiver front ends with low noise figure and high power handling capabilities. The available datasheet contains information on typical operating parameters, and additional product images.

AD1000: High Dielectric Constant Laminate

AD1000: High Dielectric Constant Laminate

AD1000 is a high dielectric constant substrate that permits circuit miniaturization compared to traditional low loss materials. It is especially beneficial for power amplifiers, filters, couplers and other components using low impedance lines.
Extreme Hybrid Cable System: MASTERLINE

Extreme Hybrid Cable System: MASTERLINE

This hybrid cable system is ideal for Fiber to the Antenna (FTTA) installations at cell sites, and has been proven to cut installation time in half when compared to other hybrid solutions based on corrugated coax cable designs.

Spectrum Capture and Playback System: IQC5000A

Spectrum Capture and Playback System: IQC5000A

This system captures and replays RF and microwave signals in surveillance applications, operational exercises, and performance validation applications. It features dual channel capability, allowing users to record uplink and downlink transmissions, or record one channel in different locations for signal characteristic analysis.

EMIT – Antenna Co-site Interference Effect Analysis

EMIT – Antenna Co-site Interference Effect Analysis

EMIT is a software tool that is used to predict cosite interference/EMI within complex RF systems and predict in-band and out-of-band interference effects for all transmitter/receiver pairs in the scene. EMIT is well suited for companies working in the aerospace, telecommunications, defense, and automotive marketplaces.

Bioelectromagnetic Analysis Software

Bioelectromagnetic Analysis Software

FEKO software is a simulation software tool that is used for electromagnetic field analysis of 3D structures. FEKO software can be used to determine the effects of electromagnetic fields on the human body from pacemakers and MRI scanning, cell phones and antenna placement...
Drop-In Isolators And Circulators

Drop-In Isolators And Circulators

BoCen Microwave provides an extensive of drop-in isolators and circulators covering from 300MHz up to 18GHz.

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FEATURED SUPPLIERS

Skyworks Solutions, Inc.

Skyworks Solutions, Inc.

Skyworks is the industry’s leading wireless semiconductor company focused on RF and complete semiconductor systems for mobile communications applications...

HUBER+SUHNER

HUBER+SUHNER

With many years of experience and knowledge HUBER+SUHNER develops and manufactures quality and competitive RF/microwave products for global needs. Our comprehensive product range and expertise includes RF connectors, cables and cable assemblies, resistive components; antennas, microwave modules and lightning protectors. All products/solutions are aimed at applications in communications, industrial and transportation markets.

Ducommun Inc.

Ducommun Inc.

Ducommun RF Products is a leading designer and manufacturer of RF Coaxial Switch, Switch Matrices and Millimeter Wave components, Millimeter Wave Sub-Assemblies and Millimeter Wave Systems.

Ducommun RF Products Coaxial Switches are used on a variety of commercial and military aircraft, communications equipment, and defense, industrial, medical, Satcom and Test & Measurement applications.

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ELECTRONIC MILITARY & DEFENSE MAGAZINE

Electronic Military & Defense was developed as a resource for engineers, program managers, project managers, and other professionals involved in the design and development of electronic and electro-optic systems for a wide range of defense and aerospace applications. Check out the digital edition of our latest issue for exclusive editorial on 3D printing, directed energy weapons, AESA radar design and testing, biothreat and explosives detection, UAV sensing, and more.

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 INDUSTRY EVENTS

AUVSI Unmanned Systems 2014

May 12 - 15, 2014
Orlando, FL

4th annual MilSatCom Asia Pacific

May 14 - 15, 2014
Singapore

International Microwave Symposium (IMS)

June 1 - 6, 2014
Tampa Bay, FL

DAS & Small Cells Congress

June 16 - 18, 2014
Las Vegas, NV
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ABOUT RF GLOBALNET

RF Globalnet is the Internet's leading source of cutting-edge technical information for the RF/microwave design community. If you are an RF/microwave design engineer or engineering manager involved in the design and development of wireless subsystems and components, or military and other radio-based communication systems at all levels, you now have access to a comprehensive web community delivering the latest updates on RF technology to give you the competitive advantage in your industry.

To provide this technical information, the site offers detailed coverage of the design and development of RF/microwave subsystems and components such as amplifiers, oscillators, modulators, attenuators, mixers, resonators, frequency synthesizers, filters, coaxial cables, connectors, switches, antennas, intergrated circuits (ICs), modules, transmitters, receivers, and transceivers. The site also includes information on discrete components such as diodes, inductors, capacitors, transistors, and resistors. We also examine the technology that creates and verifies the design, namely test and measurement equipment, computer-aided-design (CAD) tools and electronic design automation (EDA) software, among others.

RF Globalnet's database is structured to serve the needs of RF/microwave design engineers, engineering managers, system integrators, product specifiers, business executives, consultants, and others involved in the design and development of commercial wireless systems, military devices, and other commercial communication systems. Reflecting the dynamic and interactive character of the Internet, RF Globalnet is the most accurate and convenient technical source of design, product, and news information available for the rapidly changing and growing RF/microwave design industry.

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