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

  • Pulsed VNA Measurements: When And Why Do I Need To Re-Calibrate?
    Pulsed VNA Measurements: When And Why Do I Need To Re-Calibrate?

    This is the final installment of a guest series written by Walt Strickler of Anritsu Company.

  • 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

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RF GLOBALNET WELCOMES OUR NEWEST SUPPLIER

RF Globalnet Welcomes Our Newest Supplier

Narda Safety Test Solutions was founded on January 1, 2000. The company is an offshoot of the high-frequency measurement technology operation of the former Wandel & Goltermann group and has been a part of the L-3 Communications technology group since it was founded. The operational field of Narda Safety Test Solutions covers the business segments of RF Safety, EMC, and RF Testing. In all three of these areas, Narda is one of the leading providers of high quality, application tailored measurement solutions. Learn More.

FEATURED PRODUCTS

HIREC Series: Super Repellent Material

HIREC Series: Super Repellent Material

HIREC was developed to protect NTT's telecommunications equipment from snow, ice or water-related damage, thereby facilitating the maintenance of stable communications.

Harsh Environments Require Even Harsher Tests

Before any TWT Amplifier (TWTA), microwave power module (MPM) or power supply ships from dB Control, it undergoes extensive environmental testing. Our capabilities include environmental chambers accommodating enclosures from small airborne to large rack-mount assemblies, automated 24-hour ESS test cycling, HALT/HASS, high G-force vibration testing and custom combinations of temperature and altitude testing. If you expect your high-power products to be just as reliable in blistering heat as in bitter cold, contact us today.

Best Noise Floor OCXO: VFOV100

Best Noise Floor OCXO: VFOV100

The ultra stable, ultra low-noise VFOV100 OCXO features ultra low phase noise (-155 dBc/Hz @ 1KHz offset; -168 dBc/Hz floor), Sine Wave or HCMOS output, and an operating frequency range of 5MHz to 120MHz.
Surface Mount Mixer and Detector Schottky Diodes

Surface Mount Mixer and Detector Schottky Diodes

These low cost, surface mountable plastic packaged silicon mixer Schottky diodes are designed for RF and microwave mixers and detectors
Multicoaxial Board Connector: MXP40 and MXP18 Series

Multicoaxial Board Connector: MXP40 and MXP18 Series

HUBER+SUHNER’s MXP40 and MXP18 series are multicoaxial board connectors for high speed digital bench-top and system testing. They feature reliable mating, ease of use, and a broad range of configurations with flexible and ultra-stable cable assemblies and compact PCB connectors.

Amplifiers - Octave & Half-Octave Band

Amplifiers - Octave & Half-Octave Band

Ciao Wireless offers a broad selection of Octave Band and Half-Octave Band Amplifiers...
Wireless & Communication Amplifier Modules

Wireless & Communication Amplifier Modules

As Wireless applications emerge, AR has been – and continue to be – at the forefront with amplifier systems and modules that meet the unique demands of this growing industry. We now provide power amplifiers for virtually every kind of wireless system
Sonnet Filter Applications

Sonnet Filter Applications

Precision filter designers are often faced with the need to optimize filter designs using highly accurate full wave microwave electromagnetic (EM) solvers to overcome modeling limitations in standard microwave circuit simulators. However, using an EM solver within an optimization process can be very time-consuming.

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FEATURED SUPPLIERS

Signal Hound

Signal Hound

Test Equipment Plus was started in 1996 with the idea of providing quality used test equipment at affordable prices. In 2009, we decided to design a compact, lightweight, and inexpensive spectrum analyzer. The goal was to provide a spectrum analyzer with a better price-performance ratio than anything else on the market. The Signal Hound USB Spectrum Analyzer was developed and today there are 5 models ranging in frequencies from 10 Hz to 12.4 GHz. Available with USB 3.0 or 2.0 these spectrum analyzers are ideal for streaming digitized RF bandwidth to your PC or Laptop.

Pascall Electronics Ltd.

Pascall Electronics Ltd.

Currently employing 120 staff, Pascall Electronics, who have been established since 1977 have become a world leader in specialist RF & Microwave systems, sub-systems & components and both standard and custom power supplies.

Bird Technologies

Bird Technologies

Bird Technologies is an industry leading provider of RF communications products, services, calibration, and training to the Public Safety, Cellular Communications, Broadcast, Semiconductor, Military, Government and Medical markets...

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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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"RF Globalnet has been a trusted partner and has served as our main source for qualified sales leads for many years. They have a proven track record for connecting us with the right contacts, resulting in increased sales opprtunities year after year." -Doug Hagan, President


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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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