EDITOR’S PICKS

How Bats Recognize Their Own 'Bat Signals'
How Bats Recognize Their Own 'Bat Signals'

Individual bats emit sonar calls in the dark, using the echo of their signature sounds to identify and target potential prey. But because they travel in large groups, their signals often "jam" each other, a problem resembling extreme radar interference. How do bats overcome this "cocktail party" cacophony to feed and survive in the wild?

More Editor’s Picks

RECENT ARTICLES

  • Multiharmonic Volterra Model Dedicated To The Design Of Wideband And Highly Efficient GaN Power Amplifiers

    It is important for future RF communication systems to have high power-added efficiency, high linearity, and wide bandwidths. Amplifiers in today’s base stations consume a lot of power in order to send complex and wideband modulated signals. It is therefore necessary to develop more efficient base stations and power amplifiers to reduce overcrowding, and to overcome low efficiency and the need for device cooling. This paper presents Maury Microwave’s new behavioral model called the multiharmonic Volterra (MHV) model for designing wideband and highly efficient power amplifiers with packaged transistors in computer-aided design (CAD) software.

GaN MMIC PAs Support The Rapid Growth Of Ku Band Applications

Ku Band has become an essential part of the radio frequency spectrum since it was opened for satellite communications over two decades ago. New systems within commercial satellites use the Ku Band to provide worldwide coverage, which is especially attractive for government and military communications. Since the future of this band generates such a high interest, Wolfspeed, a Cree company, offers Ku Band power products using its proven fabrication process of GaN on silicon-carbide substrates. This white paper discusses the new GaN MMIC PAs and how they are able to support the future growth of Ku Band applications.

Optimization Of Torque In A Permanent Magnet Synchronous Motor (PMSM) For Traction Applications

This article provides a summary of the simulation and optimization of 200 Hz, 8-pole permanent Magnet Synchronous Motor (PMSM) that is typically used for traction applications in automotive and transportation systems.

Modeling And Simulation Of Metamaterial-Based Devices For Industrial Applications

Metamaterials provide great potential for new technology developments, making existing devices smaller, faster, and more efficient. A wide variety of metamaterials produce electromagnetic phenomena that are not seen in natural materials. Simulation can be used when developing new materials to analyze both the bulk property of the material and individual element. This article demonstrates how CTS STUDIO SUITE is used to simulate and design metamaterials from the design of the resonator to the implementation in a full device.

Accuracy Of DTF Measurements On New Spools Of Transmission Line

DTF measurements of raw spools of cable can be made accurately enough in the field to identify handling damage with a reasonable uncertainty bound. This measurement compliments other specification based measurements already done on the spools using frequency domain data. It is important to realize that the same cannot be said for DTF testing of complete antenna systems. In this circumstance, the frequency limiting aspects of the system and the ambiguity in the load termination (antenna) make pass/fail testing of components in the entire system problematic. This white paper discusses the best course of action to take for making baseline measurements for future comparison, and provides measurement examples.

More Articles

PRODUCT SHOWCASE

Ultra-Low Phase Noise OCXO-XO5123
Ultra-Low Phase Noise OCXO-XO5123

The new Ultra-Low Phase Noise OCXO-XO5123 from MtronPTI is the newest addition to their frequency control and timing products. As one of the lowest phase noise OCXOs in the industry, this device is available in the 10 to 40 MHz output frequency range.

  • Custom EMI Filters
    Custom EMI Filters

    EMI Filters are used to prevent electromagnetic interference in avionics and aircraft systems, as well as military shipboard/vehicle electronics, and in military communication systems. Electromagnetic interference can cause a complete loss of data in communications systems, or a simple decline in data quality.

  • Lightning Protection and EMP Components
    Lightning Protection and EMP Components

    HUBER+SUHNER’s line of lightning protection and EMP components are ideal for use in mobile communication systems, navigation systems, high-speed data transmission systems, radar, CATV, and video surveillance. This page provides an overview of the different products in this line and their ideal areas of use.

More Products

FEATURED VIDEOS

More Featured Videos

FEATURED SUPPLIERS

GPS Networking GPS Networking

GPS Networking, Inc. is the Worldwide Leader in GPS Networking for over 13 years. We specialize in providing global positioning products that allow you to network the signal throughout your site or facility. Our products are designed with building-block simplicity so that you can design the system for your individual needs...

Greenray Industries, Inc. Greenray Industries, Inc.

Greenray Industries a leading designer and manufacturer of precision frequency control products designed for communications, military, aerospace, and instrumentation applications...

JFW Industries, Inc. JFW Industries, Inc.

RF Components|Application Specific Test Systems

Communications & Power Industries, Beverly Microwave Division Communications & Power Industries, Beverly Microwave Division

CPI BMD is the world’s largest manufacturer of receiver protectors and magnetrons. We also manufacture TWTs, CFAs, transmitter assemblies, scientific systems, high-power solid state switches and switch assemblies, pressure windows, a wide variety of multifunction components and Integrated Microwave Assemblies.

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 securing the 21st century's greatest warfare asset, considerations for phase-coherent microwave measurements, using FPGAs for tuning systems to military functions, using printed energy harvesters for military, and more.

Sign up to receive a free copy of the 2015 edition!

CURRENT HEADLINES

More News

 INDUSTRY EVENTS

Defence Satellites May 10 - 12, 2016
Brussels
More Events

READERS' CHOICE

EDITOR'S CHOICE

10 YEAR ADVERTISER CLUB

ADVERTISER SINCE 2002

"RF Globalnet is one of the best ways I've found to get our products and our brand in front of RF engineers working in a variety of different Industries." - Bryan Walker

Learn more

ADVERTISER SINCE 2003

"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 opportunities year after year." -Doug Hagan, President


Learn more

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.

Please take a moment to join our community and discover all the benefits of your FREE membership.