Scientists from Cardiff University have developed a device that attaches to the skin with ordinary adhesives and uses low levels of microwaves to keep tabs on glucose levels. Clinical testing has shown that the device’s performance is comparable to commercially available continuous glucose monitors (CGMs) and finger-stick blood tests.
Digital radio makes spherics and crackling interference in radio broadcast a thing of the past. New technologies from Fraunhofer IIS make it possible for digital radio to replace analogue short and medium wave broadcasting around the world.
Radio frequency emission are considered incidental system noise in virtually all laptops, smartphones and other electronic devices, but scientists at Disney Research have found a way to use these spurious electromagnetic (EM) signals to uniquely identify even seemingly identical devices.
Wireless charging of mobile devices is possibly one of the most desired of technological milestones. Some devices already can be charged wirelessly by placing the mobile device on top of a charging base. The next step, charging devices without the need of taking them out of one’s pocket, might be just around the corner.
At IMS 2016, Teledyne Microwave Solutions, Booth #1739, is highlighting its new line of SWaP-friendly GaN amplifiers, Integrated Assemblies for EW, its industry-leading portfolio of TWTs, the industry’s most comprehensive line of MW & RF Components, and its diverse range of Microwave PCB capabilities. Like last year, stop by our booth for a free cup of Espresso!
The concept of load-pull simulation is where a load or source impedance is swept by an active device and its performance is measured. Recently, advancements have been made to data file formats by load-pull measurement system vendors to expand the usefulness of load-pull characterization. These new file formats support a sweep of an independent variable such as input power, DC bias, temperature, or tone spacing, in addition to the swept source or load impedances. The NI AWR Design Environment™ software enables designers to import and manipulate these load pull data sets in a circuit simulator which greatly simplifies and speeds the design process, and gives them a broader design space to explore. This white paper covers in-depth information on how to use enhanced load-pull measurements for base station power amplifier designs.
A design house in California was looking for a network analyzer that could combine linear, nonlinear, and noise figure measurements with minimal external programming to rapidly produce statistical models of circuit and transistor performance.
Solid state amplifiers can now be constructed through the use of MMIC amplifiers to reach output powers and performance levels that have only been achievable by traveling wave tube amplifiers (TWTAs). These new high efficiency power amplifiers are designed to incorporate an antipodal finline antenna array within a coaxial waveguide that is optimized in the Ka Band. This white paper demonstrates building a 120 Watt power amplifier operating from 27 to 31 GHz through the use of a coaxial waveguide combiner structure joined with 10 Watt GaN MMIC devices.
In a world that runs on wireless devices and connections, wireless testing is increasingly important. Here is a "right-sizing" approach to managing trade-offs in testing methods and complexity to do what is necessary without breaking your budget.
You need an RF power amplifier. You have measured the power of your signal and it is not enough. You may even have decided on a power level in Watts that you think will meet your needs. Are you ready to shop for an amplifier of that wattage? With so many variations in price, size, and efficiency for amplifiers that are all rated at the same number of Watts many RF amplifier purchasers are unhappy with their selection.
The R&S FSW85 is the latest addition to Rohde & Schwarz’ family of signal and spectrum analyzers. It is the only device on the market designed to cover the frequency range from 2 Hz to 85 GHz in a single sweep, allowing users to test baseband and RF with a single analyzer. Test setups are now much simpler, since the R&S FSW85 does not require harmonic mixers. An internal preselection feature suppresses the image frequency and other spurious emissions that commonly occur during harmonic mixing.
As its model number implies, the 745-20C-T is a digital delay generator with 20 channels in one unit. It features a 100 ps time resolution (standard, with an optional 250 fs time resolution), 5 ps jitter (internal trigger), a 25 ps jitter (external trigger), 1 ns output rise times, and more.
These resin sealed bolt-in feedthrus from Corry Micronics are manufactured for installation into a threaded or thru-hole application. Bolt-in filters are installed in amplifiers and RF switches to filter interference coming into and out of the device. Bolt-in filters are a very low cost yet effective filtering solution. Bolt-in feedthrus are available in “C”, “L” and “Pi” circuit configurations. These bolt-in feedthrus are available with capacitance values ranging from 0-5 pF to over 30,000 pF with working voltages exceeding 1,000 VDC. Bolt sizes range from 2-56 to ¼-28 and metric bolt sizes are available upon request. The bolt-in feedthru and lead can be silver, gold or tin plated.
At IMS 2016, senior RF applications engineer Tammy Ho with Qorvo showed us three new Doherty amplifiers and discussed how they’re being used in trials for 5G rollout in 2020.
Internet connectivity is becoming prevalent in more and more products as the IoT movement has taken off. As a result, wireless standards are being integrated into every day products. This presents a unique challenge for engineers who haven’t dealt with wireless technology. At IMS 2016, applications engineer Ben Maxson with Copper Mountain Technologies spoke with us about some of those challenges, and also spent some time introducing us to one of his company’s new reflectometers, which just so happen to be ideal for wireless testing in applications related to the IoT.
Corry Micronics garnered a fair amount of attention at IMS 2016 due to their new, incredibly lightweight microwave bandpass filter. Watch the video to learn more about how they made it and what it can mean for your next application with challenging weight restrictions.
Gopi Gampala, senior application engineer with Altair spent a few minutes with us on day two of the 2016 IMS exhibition to talk to us about their FEKO EM simulation software and the advantage of its hybridization of multiple solvers.
Choosing the right amplifier for your application isn’t as simple as looking over a datasheet. After a few decades worth of experience in RF design and applications engineering, Alan Ake with Guerilla RF has learned the intricacies of selecting the right amplifier, and now he’s sharing that information with you.
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.
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Qorvo has announced the introduction of three new gallium nitride (GaN) power amplifiers (PAs) that achieve industry-leading power, power added efficiency (PAE) and gain at the IMS 2016. Qorvo's newest GaN PAs are optimized for use in military radar, communications and electronic warfare systems.
With K(LIN)™ constant linearity technology, F1455 Series Variable Gain Amplifiers from IDT maintain 38 dBm output third order intercept point for first 12 dB of gain control range. These devices feature broadband 1,400–2,300 MHz operation, 4 dB NF at max gain (2,000 MHz), and 32 dB flat, temperature invariant max gain. The F1455 is available in a 6 x 6 mm 28-QFN package, and is sampling now to customers. IDT representatives will be available to discuss K(LIN) and other innovations at IDT's booth number 316 at IMS2016, Moscone Center, May 24 - 26.
NXP Semiconductors N.V. has announced the expansion on their portfolio of 48V gallium nitride (GaN) RF power transistors optimized for Doherty power amplifiers for use in current and next-generation cellular base-stations. NXP is showcasing the new GaN transistors in booth 1839 at the IEEE International Microwave Symposium (IMS 2016) in San Francisco (23-26 May).
Skyworks Solutions Inc. reports that its front-end modules are now being used by Iotera Inc. Initially deployed for tracking pets, the devices are now being utilized to protect vehicles, bicycles and other personal items. Skyworks is highlighting its broad product portfolio, including its front-end modules, in booth 1611 at the IEEE International Microwave Symposium (IMS 2016) in San Francisco (24-26 May).
Peregrine Semiconductor Corp. introduces the UltraCMOS® PE19601, a monolithic phase and amplitude controller (MPAC) solution for beamforming at IMS 2016. This new MPAC–Beamforming device covers a frequency range of 8 to 12 GHz, and is designed for X-band radar applications including active electronically scanned array (AESA) weather, air-traffic control, and military radar applications.
Eastern OptX is displaying a radar target scenario generator that is designed to put a radar test range on a test bench. The Eastern OptX Series 1100 Radar Target Simulator is a true broadcasting replicator. The Series 1100 receives the signal transmitted from a radar system and adds the round-trip propagation delay associated with the target distance. That signal is then output to the radar receiver.
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