EDITOR’S PICKS

Building 'Communication Islands' During Infrastructure Breakdowns
Building 'Communication Islands' During Infrastructure Breakdowns

Researchers at Networked Infrastructureless Cooperation for Emergency Response (NICER) research center at TU Darmstad in Germany are developing technologies that will help civilians communicate in the event of terror and cyberattacks, public emergencies, and large-scale disasters that cripple existing power and communications infrastructure.

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MUST SEE PRODUCTS FROM IMS 2017

Dual-Channel Switch LNA Module: QPB9318 Dual-Channel Switch LNA Module: QPB9318

Qorvo offers the new QPB9318 highly integrated front-end module with operation in the 2.3 – 2.7 GHz frequency range for TDD base station, wireless infrastructure, small cell BTS, and pre-5G/5G massive MIMO applications. This LNA module integrates a two-stage LNA and a high power switch in a dual-channel configuration.

1 KW L-band Radar Pallet Amplifier: IGNP1214M1KW-GPS 1 KW L-band Radar Pallet Amplifier: IGNP1214M1KW-GPS

Integra Technologies presents the IGNP1214M1KW-GPS, a single-supply, 50 Ω matched GaN-based pulsed power pallet amplifier for L-band radar applications.

High Power RF Pin Diode Switches High Power RF Pin Diode Switches

Corry Micronics offers two new RF pin diode switches with operation in the 1 GHz to 1.1 GHz frequency range. The CMSW-SPDTR-1G-5K is a single-pole double-throw (SPDT) hermetically sealed reflective switch, while the CMTRSW-1G1R1G-2K5 is a high power transmit/receive (T/R) switch designed to be used in IFF applications.

YIG Frequency Synthesizer YIG Frequency Synthesizer

Leveraging a long heritage of engineering innovation in YIG and low phase noise technologies, Teledyne Microwave Solutions (TMS) has developed a brand new line of YIG synthesizers that substantially reduces the high cost of acquiring a high-quality, broadband low phase noise source. After many years of building the industry's lowest phase noise YIG Oscillators, TMS has applied that expertise to deliver on a longstanding industry aspiration for a 'Win-Win': low phase noise AND low cost in a plug n' play synthesizer solution.

0.7 - 6 GHz Solid-State Broadband Amplifier: Model 500S1G6 0.7 - 6 GHz Solid-State Broadband Amplifier: Model 500S1G6

The Model 500S1G6 from AR is a solid-state broadband amplifier that operates over the 0.7 to 6 GHz frequency range, and is designed for applications where instantaneous bandwidth, high gain, and linearity are required. The low level of spurious signals and linearity of this device makes the 500S1G6 ideal for use as a driver amplifier in testing wireless and communication components and subsystems, and EMC testing applications.

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RECENT ARTICLES

  • Developing Efficient Design Procedures For Wideband, Low-Profile Antennas Using Altair FEKO
    Developing Efficient Design Procedures For Wideband, Low-Profile Antennas Using Altair FEKO

    Low-profile, concealed antennas are often desired for diverse applications across many military and commercial vehicle platforms. Since antennas mounted close to the ground have decreased efficiency, potential antenna applications need to benefit from the coupling to the ground and/or rely on short distance communication. Traditional analytical propagation models are not applicable to short-distance near-ground signal propagation, so numerical modeling is required. FEKO electromagnetic simulation technology is an attractive solution with superior effect capabilities that account for mutual coupling between receiving and transmitting antennas.

Characterizing The Murchison Widefield Array Beam Pattern

The Murchison Widefield Array (MWA) radio telescope was constructed as a precursor to the Square Kilometer Array (SKA) at the Murchison Radio-astronomy Observatory in Western Australia. This case study focuses on this electronically steered phased array, where steering is achieved by introducing phase delays to each element in the array. The primary beam patterns in phased array antennas must be accurately known in order to correctly calibrate and image the data collected by the radio telescope.

Understanding RF Inductor Specifications

There are many key parameters that must be considered for RF inductor selection, including the mounting type, inductance value, current rating, DC resistance, self-resonant frequency, Q factor, and temperature rating. A balance must be met between the desired smaller sizes of the inductor package, and the inductance value and current rating. Once these two parameters are determined, the other parameters can then be optimized.

Flexible Hybrid Electronics Advancing, Spurred By Dual-Use Technology Development

Flexible hybrid electronics (FHE) is a category of microelectronics using novel materials with stretchable, conformable, and flexible form factors. FHE enables wearables, medical Internet of Things (IoT) applications, defense applications, and more by shifting from electronics based on rigid and fragile circuit boards to flexible electronics components mounted on substrates, such as plastics and textiles.

mmWave Channel Modeling With Diffuse Scattering In An Office Environment

The millimeter wave frequencies being planned for 5G systems pose challenges for channel modeling. At these frequencies, surface roughness impacts wave propagation, causing scatter in non-specular directions that can have a large effect on received signal strength and polarization. To accurately predict channel characteristics for millimeter wave frequencies, propagation modeling must account for diffuse scattering effects. This example uses Wireless InSite’s diffuse scattering capability to perform simulations of an indoor wireless network.

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PRODUCT SHOWCASE

Fischer Plastic Series
Fischer Plastic Series

The Fischer Plastic Series is a family of high performance, fully insulated plastic connector bodies that are all compatible with Fischer’s metallic connectors. Key features include high reliable signal path, high signal and contact density, clear coding for easy operation, and resistance to large temperature variations.  

  • Oscillator 10-50 MHz: TCXO T75
    Oscillator 10-50 MHz: TCXO T75 Like all Greenray TCXOs, the T75 TCXO has been designed for communications, instrumentation, and military applications. The robust package and small footprint of this particular TCXO makes it ideal for use as a reference oscillator for critical timing applications.
  • NEW Radar R&D Test Equipment - Compact, Cost-Effective, Innovative
    NEW Radar R&D Test Equipment - Compact, Cost-Effective, Innovative

    Berkeley Nucleonics Corporation, a leader in RF/microwave signal generation and analysis for over 50 years, offers an array of signal generators, phase noise testers, and real-time spectrum analyzers as test and measurement solutions for radar applications.

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FEATURED VIDEOS

  • FEKO Student Competition 2017
    FEKO Student Competition 2017

    Altair announces the annual 2017 FEKO Student Competition in support of engineering education. This competition is open to all under-graduate and post-graduate students who are using FEKO throughout the globe.

  • Video: Wireless InSite Intro Series: Defining And Placing Receiver Sets

    This video demonstrates the antenna sets within Wireless InSite and walks users through the available options. Users will also learn how to assemble an antenna set and choose their antenna pattern. The video also covers Wireless InSite's visualization tools, which allow the user to see how their antennas are oriented within the antenna set.

  • Video: Wireless InSite Intro Series: Creating And Editing Indoor Floor Plans

    This video introduces Wireless InSite's Floor Plan tools and shows the user how to create and edit an indoor environment. The demonstration includes the placement of walls, doorways, and windows, along with material selection from Wireless InSite's material database. In addition to the 2D floor plan editor, the video also demonstrates how to make edits within the 3D display.

  • Video: Wind Turbines And Aircraft In The Presence Of Ground Clutter

    This short animation shows predicted RCS from an air traffic control radar with an aircraft flying over a wind farm, before and after the static ground clutter (returns from terrain) are filtered out. A basic filter has then been applied to remove the portions of returns with 0-Doppler (static clutter from the ground and wind turbine towers) to approximate what a radar might see after attempting to filter out objects not in motion. Although actual radars have much more sophisticated signal processing, this basic before/after animation of RCS from subsequent scans shows the problem that standard Doppler filtering would encounter when processing returns from a wind farm.

  • Video: Tuning A Microstrip Lens In Rotman Lens Designer (RLD) And Options For Importing To XFdtd

    In this video, a Remcom engineer walks through the steps to set up and tune a Ku Band microstrip lens in Rotman Lens Designer (RLD). We populate the physical, electrical, and transmission line properties and analyze the performance of the lens by plotting the array factor and beam to array phase error. This data helps us to further tune the lens by adjusting the focal ratio and beam port excitation, and then we export the S-Parameters. Finally, we discuss the various options for exporting the file and importing into XFdtd EM Simulation Software, including the use of a customized script. The script import method automatically sets up the ports and also includes the material properties.

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FEATURED SUPPLIERS

Mini-Systems, Inc. Mini-Systems, Inc.
Mini-Systems, Inc. (MSI), since 1968 has manufactured high reliability, precision components for the Hybrid and Microelectronic industries
MtronPTI MtronPTI

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

AR AR

AR RF/Microwave Instrumentation manufacturers and distributes: | RF Amplifiers, 1 to 50,000 Watts, dc to 1 GHz| Microwave Amplifiers, 1 to 10,000 Watts, 0.8 to 45 GHz| Antennas, 1 to 15,000 Watts, 10 kHz to 50 GHz| Accessories and Software| Precompliance Test Systems| Transient Generators|AR Modular RF manufacturers and distributes: | RF Amplifier Modules with single dc supply| Broadband and sub band RF amplifier systems, rack and case mounted units| Modules and systems are available from slight modifications to full custom designs|AR Receiver Systems manufacturers and sold by AR RF/Microwave Instrumentation: | EMI Receivers | Impulse Generators| Leak Detectors

Remcom Remcom

Remcom provides innovative electromagnetic simulation software and consulting services. Our products simplify the analysis of complex EM problems and lead the market in FDTD-based modeling and simulation.

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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 optimizing defense technology in harsh environments, a 3D X-ray diagnostic tool for use in combat, the first international standard for tactical fiber optic cables, early warning systems for chemical warfare agents, and more.

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CURRENT HEADLINES

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 INDUSTRY EVENTS

DC5G Summit October 11, 2017
Renaissance Washington Downtown, DC
MILCOM 2017 October 23 - 25, 2017
Baltimore, MD
Airborne ISR 2017 October 25 - 26, 2017
London
19th annual Global MilSatCom November 7 - 9, 2017
London
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