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New Antennas Meet the Expanding Needs of the WISP Market

by KP Performance Antennas Wireless Internet Service Providers (WISPs) have kept pace with technology from their roots as “mom-and-pop shops” to formidable service providers using technologies ranging from MIMO to LTE with performance competitive with cable and Fiber to the Home (FttH). Although often overshadowed by “flashier” technologies, antennas for WISP continue to advance in […]

Design of a 10 GHz Low-Noise Amplifier

by National Instruments Low-noise amplifiers (LNAs) play a critical role in the radio receiver front end, amplifying very low-power signals received by the antenna that are often just above the noise floor without significantly degrading the signal-to-noise ratio. In most receivers, the overall noise figure (NF) is dominated by the first few stages of the […]

High-Capacitance Supercapacitors Suit Extensive Application Fields

by Yusuke Tanaka and Yoshiyuki Tabata of the Planning and Promotion Section, High Performance Power Device Dept., Chemical Device Group of Murata Manufacturing Co., Ltd Murata Manufacturing Co., Ltd. offers its DMH, DMT, and DMF Series supercapacitors that feature low equivalent series resistance (ESR) and high capacitance (up to 1,000mF).  Compared to similar supercapacitors, most […]

Your Guide to Waveguide Plumbing: How Do Waveguides Bend, Twist, and Flex?

by Mark Blackwood – Fairview Microwave From antenna apparatus in transmit/receive chains to cellular tower installations, waveguides have offered high-powered and extremely low-loss solutions for signal transmission. Still, not every setup is the same, and the connectorization between the waveguides can prove to be challenging as the waveguide build is often bulky and less agile […]

Adapting Non-Sealed Surface Mount Parts for Hi-Rel Customer Assembly Processes

by Jonid Xhakollari, Manufacturing Process Engineer – Mini-Circuits The perfect integration of a product within the customer’s assembly process can be just as critical to the success of that product as the electrical performance.  Mini-Circuits and many RF/microwave component manufacturers build surface-mount components that are soldered onto customers’ PC boards using a reflow process.  Following […]

A Brief Tutorial on Power Loss in WBG Semiconductor Devices

by Alan Wadsworth – Keysight Technologies, Inc. (Due to the number of figures, all figures are at the end of the article.) Although many microwave engineers are familiar with wide bandgap (WBG) semiconductors for their uses in RF applications, they may not be as familiar with their applications in power circuits.  WBG materials (most commonly […]

Pigtail-Free DC to 22 GHz Photodiode Modules For Scalable Avionic Platforms

by Shubhashish Datta, Abhay Joshi, Roy Howard, Nilesh Soni, and Matthew D’Angiolillo – Discovery Semiconductors Fiber-optic interconnects have a natural advantage in speed, electro-magnetic immunity, scalability, and weight compared to all-electronic interconnects, and are being increasingly used in avionics platforms to link multiple processors, radars, sensors, and communication terminals.  Utilization of star network topology further […]