EDITOR’S PICKS

Design Overview: 25W X-Band GaN PA MMIC

Gallium Nitride (GaN) MMIC processes suitable for operation at microwave frequencies are now commercially available from a number of vendors worldwide. The high breakdown voltage of GaN transistors and their ability to operate reliably at high junction temperatures make them well suited for the realization of high-power amplifiers. This case study describes the design and performance of a 25W X-band GaN PA MMIC developed with a 0.25µm GaN on SiC process.

  • FCC Delays Airwaves Auction For Wireless Carriers To 2016
    FCC Delays Airwaves Auction For Wireless Carriers To 2016

    Some of the most attractive frequencies traditionally used for television have been slated by the Federal Communications Commission (FCC) for auction to wireless companies. The complexity of the initiative has led to delays in the sale of what some call the “beach front property” of the radio frequency spectrum.

  • Skyworks Ramps Revolutionary Diversity Receive Modules For LTE Smartphones
    Skyworks Ramps Revolutionary Diversity Receive Modules For LTE Smartphones

    Skyworks Solutions, Inc., an innovator of high performance analog semiconductors enabling a broad range of end markets, recently announced that a family of groundbreaking diversity receive modules (DRx) for LTE smartphones is currently ramping with several tier-one manufacturers.

  • World Record In Data Transmission With Smart Circuits
    World Record In Data Transmission With Smart Circuits

    Fewer cords, smaller antennas and quicker video transmission. This may be the result of a new type of microwave circuit that was designed at Chalmers University of Technology. The research team behind the circuits currently holds an attention-grabbing record. Tomorrow, the results will be presented at a conference in San Diego.

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RECENT ARTICLES

Design Overview: 25W X-Band GaN PA MMIC

Gallium Nitride (GaN) MMIC processes suitable for operation at microwave frequencies are now commercially available from a number of vendors worldwide. The high breakdown voltage of GaN transistors and their ability to operate reliably at high junction temperatures make them well suited for the realization of high-power amplifiers. This case study describes the design and performance of a 25W X-band GaN PA MMIC developed with a 0.25µm GaN on SiC process.

Reliability Of GaN-Based Solid State Power Amplifiers

GaN based solid state power amplifiers (SSPAs) have extremely attractive properties, making them ideal for use in both ground applications and space-based satellite communication systems. However, there is a limited amount of information available on the reliability of this new technology. The purpose of this paper is to describe the underlying complexities associated with GaN based SSPAs, and to present the methodology and findings of an extensive R&D program that correlated theoretical results with field data, demonstrating the reliability of GaN based SSPAs.

Whitepaper: Near Field Communication (NFC) Technology And Measurements

Near Field Communication (NFC) is a new short-range, standards-based wireless connectivity technology, that uses magnetic field induction to enable communication between electronic devices in close proximity. By Rohde & Schwarz

Wireless Medical Technologies: Navigating Government Regulation In The New Medical Age

Unless regulatory issues are taken into account at the earliest stages of the research and development process, device manufacturers could find themselves investing significant time and resources in products for which they cannot obtain government approval. In the U.S., three federal agencies, the Federal Communications Commission (FCC), the Food and Drug Administration (FDA), and the Centers for Medicare and Medicaid Services (CMS), are charged with regulating wireless medical devices. This article provides a comprehensive analysis of this tri-partite federal regulatory structure in order to help manufacturers navigate the myriad of technical rules and policies enforced by agencies with different, and sometimes divergent, objectives.

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FROM THE EDITOR'S DESK

  • Amazon’s New Smartphone Boasts High-End RF And Imaging Components
    Amazon’s New Smartphone Boasts High-End RF And Imaging Components

    On July 25, Amazon released its first smartphone, and it didn’t take long for the internal components of the device to get leaked.

  • 4 Electronic Design Requirements Of The System-Integrated Soldier
    4 Electronic Design Requirements Of The System-Integrated Soldier

    Perhaps most famously portrayed in Robert Heinlein’s Starship Troopers (1959), the idea of the “future soldier” has been around for decades. As rehashed in countless science fiction films and video games, the stereotypical future soldier is equipped with a protective exoskeleton, enhanced sensory equipment, seamless communication systems, and advanced weaponry. While the concept once seemed implausible, there are many real-world projects under way focused on realizing those seemingly fictitious warfighter capabilities — by integrating a plethora of diverse electronic subsystems into a cohesively operational suit.

  • 7 Noteworthy Technologies From IMS2014
    7 Noteworthy Technologies From IMS2014

    At the 2014 IEEE MTT International Microwave Symposium earlier this month, I had the opportunity to speak with the event’s general chair, Dr. Larry Dunleavy, about the state of the RF and microwave design industry. While he acknowledged that it is a time of relative uncertainty — due in large part to constrained military budgets and conservative fiscal forecasts for 2014 — he also pointed out that there are plenty of emerging markets where RF and microwave technology is making a significant impact. With the Internet of Things (IoT) driving innovation in burgeoning markets like automotive and healthcare  and the development of 5G pushing wireless technology to further heights, there was good reason for nearly 600 companies to flock to the IMS2014 exhibition in Tampa, Fla.

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GUEST COLUMNS

  • GaAs And GaN Capabilities On Display At Farnborough
    GaAs And GaN Capabilities On Display At Farnborough

    The UK was host to air shows recently with the annual Royal International Air Tattoo (RIAT) and the biennial Farnborough International AirShow (FIA) 2014. I had the opportunity to attend a Lockheed Martin F-35/F-16 preview day held at RAF Fairford, the venue for RIAT, as well as taking a few days to attend FIA 2014.

  • Lockheed Martin Previews F-35 Lightning II "Fighter Of The Future"
    Lockheed Martin Previews F-35 Lightning II "Fighter Of The Future"

    The U.K. was host to air shows recently with the annual Royal International Air Tattoo (RIAT) and the biennial Farnborough International AirShow (FIA) 2014. In this article, Asif Anwar from Strategy Analytics describes his experience at the Lockheed Martin F-35/F-16 preview day held at RAF Fairford, the venue for RIAT, and provides an overview of the new capabilities of each aircraft.

  • EM De-Embedding Magic – Part 3: What Could Possibly Go Wrong?
    EM De-Embedding Magic – Part 3: What Could Possibly Go Wrong?

    In Part 1, I described the EM analysis port calibration algorithm that I developed almost 30 years ago and has been in use in Sonnet ever since. At first glance, it might seem like the technique can be applied only to “lonely” ports — ports that have no interaction or coupling with any other nearby ports. In Part 2, I showed how the algorithm can be easily extended to calibrate and de-embed as many tightly coupled ports as needed. Yes, a couple equations are needed, but once you get familiar with them, the process is really easy to do. Everything works so well, one might think that nothing could possibly go wrong.

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RF GLOBALNET WELCOMES OUR NEWEST SUPPLIER

RF Globalnet Welcomes Our Newest Supplier

Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.

Specialties

PIC® Microcontrollers, dsPIC® Digital Signal Controllers, Analog & Interface, Memory, Embedded Wireless, Wireless Audio, Embedded Security, Touch & Gesture Sensing, RF Front End, Real-Time Clocks, Development Systems, Automotive, USB & Ethernet, Computing.

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CST WEBINAR SERIES 2014 – EXPLORING EM SIMULATION

The CST Webinar Series 2014 offers 12 free webinars that provide an insight into EM simulation and techniques to shorten the design cycle and reduce the number of costly prototypes required. No matter your level of experience, whichever webinar you attend, we think you'll benefit. Registrations for coming webinars are open and aired webinars are now available on demand. Learn more.

FEATURED PRODUCTS

Wideband 7.5-18 GHz, 300 W TWT Amplifier With Gain Linearization

Wideband 7.5-18 GHz, 300 W TWT Amplifier With Gain Linearization

The dB-4410 TWTA (Traveling Wave Tube Amplifier) uses gain linearization to amplify complex waveforms with multiple pulse patterns and bursts, modulation schemes, and counter-jamming capabilities. This makes it ideal for use in radar, ECM, and communication systems. This amplifier features a modular construction, High-Reliability, a wide bandwidth, a very low phase noise, MIL-STD-461E and MIL-STD 704 compliance, and qualification for military airborne environments.
<b>RF Connectors</b>

RF Connectors

HUBER+SUHNER is a leading supplier of RF connectors for signal (voice/data) transmissions with many years of experience engineering and producing coaxial connectors.

Electromagnetic Solutions For Military Defense

Electromagnetic Solutions For Military Defense

Remcom provides innovative EM simulation and wireless propagation tools as well as expertise that can be leveraged in consulting partnerships. In addition to our software products, our Government Services Division provides crucial support to the Department of Defense, providing high-quality analysis, solving challenging technical problems, and developing and maintaining high-fidelity computational capabilities in the area of EM propagation for government software applications.

Radiation Hazard Analysis With FEKO

Radiation Hazard Analysis With FEKO

Radiation hazard regulations and guidelines are becoming commonplace all over the world. Designers of new communication equipment and system level integrators have to apply the appropriate standards in testing and validation processes for their devices and systems to ensure the safety of personnel and combustible stores in close proximity to sources of radiation.
RF Cosite Modeling Software: EMIT

RF Cosite Modeling Software: EMIT

EMIT (electromagnetic interference toolkit) is a type of simulation software used to predict EMI (electromagnetic interference) in complex RF environments containing multiple transmitters and receivers, and to predict in-band and out-of-band interference effects for all Tx/Rx (transmitter/receiver) pairs in the scene.

DiClad: Woven Fiberglass/PTFE Composite Materials

DiClad: Woven Fiberglass/PTFE Composite Materials

DiClad laminates are woven fiberglass/PTFE composite materials for use as printed circuit board substrates. Using precise control of the fiberglass/PTFE ratio, DiClad laminates offer a range of choices from the lowest dielectric constant and dissipation factor to a more highly reinforced laminate with better dimensional stability.
RF/Microwave Signal Generator: MG3690C

RF/Microwave Signal Generator: MG3690C

The MG3690C series of broadband signal generators covers audio, HF, VHF, UHF, RF and microwave frequencies from 0.1 Hz to 70 GHz in single coaxial output and up to 325 GHz or beyond, with external multipliers. Thus, the MG3690C series is an ideal signal source for both RF and microwave requirements, fully configurable for simple to high performance applications.

Antenna Magus - Antenna Design. Simplified.

Antenna Magus - Antenna Design. Simplified.

Antenna Magus is a new software tool to help engineers accelerate the antenna design and modelling process. It has a huge database of designed antennas which can be exported to CST MICROWAVE STUDIO® for further analysis and optimization...

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FEATURED SUPPLIERS

MtronPTI

MtronPTI

Worldwide manufacturer of frequency control products such as high precision oscillators, crystal and LC filters, precision resonators
HUBER+SUHNER

HUBER+SUHNER

RF Interconnect: connectors, coaxial cable and assemblies, delay lines, lightning protection, picocell antennas, adaptors, terminations, attenuators, couplers, splitters|Fiber Optic Interconnect: connectors, fiber optic cable and assemblies, attenuators, splitters, optical distribution frames|Test and measurement components: test leads, adaptors, terminations, test kits

Microwave Communications Laboratories, Inc. (MCLI)

Microwave Communications Laboratories, Inc. (MCLI)

Microwave Communications Laboratories, Inc. (MCLI), located in St. Petersburg, Florida, is a designer and manufacturer of Custom RF-Microwave Passive and Active Components. We supply both government and commercial entities with the proper equipment and support to facilitate high frequency electronic communication.

Bliley Technologies, Inc.

Bliley Technologies, Inc.

Bliley Technologies is a worldwide leader in the design and manufacturing of low noise frequency control products. Privately owned and operated since 1930, our dedicated employees, utilizing our 64,000 square foot manufacturing facility located in Erie PA, have been a stable source of quality frequency control products for our customers for over eighty years. In fact Bliley remains one of the very few US based companies to have crystal and oscillator manufacturing within the same facility. Bliley's vertical integration provides an ideal environment for our crystal, oscillator and mechanical engineers to work closely with our production employees to develop and produce some of the most robust designs offered in our industry.

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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 wearable antennas for military applications, countering EMI threats, biological and chemical threat detection, advances in optical sensing, and more.

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CURRENT HEADLINES

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 INDUSTRY EVENTS

RAN World 2014

November 3 - 4, 2014
Berlin

DesignCon 2015

January 27 - 30, 2015
Santa Clara, CA
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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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