A diode that conducts and blocks electrical current magnetically, rather than through an interface between two semiconductors, has been developed at the University of Missouri. The development comes from a group of physicists led by Deepak K. Singh, associate professor of physics and astronomy at the University of Missouri. The diode is comprised of a […]
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Microwave/Millimeter Wave interconnects, Part 2: Connectors and cable assemblies
Part 1 of this FAQ look at the coaxial cables used in microwave/millimeter wave interconnects and cable assemblies. But a cable alone is only half a solution; the cable must be terminated with connectors. Often, the completed cable/interconnect assembly is also called a cable, but this is generally not an ambiguous situation (but it may […]
Wireless charging, Part 2: Implementation
Part 1 of this FAQ looked at the overall context of wireless charging of personal devices. This part looks in more detail at the approaches to wireless charging and the implementation specifics. Q: What approaches are available for wireless charging? A: There are three basic topologies: single-coil inductive, multi-coil inductive, and resonant. Q: What are […]
How to use oscilloscopes with integrated test instrumentation
Many manufacturers have in recent years have introduced oscilloscopes with integrated test instrumentation. This means that the smaller and lighter oscilloscope enclosure actually houses about five additional test instruments. An example is the Tektronix MDO3000 Series which includes a digital voltmeter, arbitrary function generator, spectrum analyzer, logic analyzer, and protocol analyzer. All this integrated test […]
Wireless charging, Part 1: Context
Wireless charging of devices is a hot and growing area. This FAQ explores the rationale and options for implementing this form of energy transfer, storage, and charging. Q: What is wireless charging? A: It consists of two functions which are closely linked. The first is the transmission of electricals power wirelessly from a transmitting source […]
On-chip RF transformers could shrink thanks to rolled-up membrane design
Researchers at the University of Illinois say they have devised more efficient RF transformers by depositing conductors on a membrane that, once complete, rolls up to create a high-turns-ratio transformer. The transformers consist of two sets of rolled-up coils deposited on some kind of SiNx material. Researchers say they’ve used the technique to realize up […]
Microwave/Millimeter Wave interconnects, Part 1: Coaxial cables
Cables, connectors, and interconnects (cable assemblies) are essential yet often underappreciated parts of a system design. Even though the popular meme is “everything is going wireless” thus eliminating the need for cable assemblies, the reality is that these assemblies are critical both within circuits at either end of a wireless link, or as the only […]
VIDEO: Seed Rivers asks —What do you need to bring your innovation to market?
EEWorlonline editor Aimee Kalnoskas speaks with entrepreneur and president of Master Electronics Jamil Nizam, about how a culture of family and mentorship brought him his new venture, Seed River. Master’s newly-formed investment firm provides the resources needed to help develop and launch products from entrepreneurs, start-ups, and early-stage companies. Just listening? Check out the EE […]
Wireless charging: Will the exception soon become the rule?
by Aishwarya Vijay, Grand View Resarch, Inc. If you count the number of power cords you come across each day, right from your coffeemaker in the morning to plugging in your smartphone at the end of the day, the number could well be in the double digits. What would it be like to live a […]
Considerations in PCB layout guidelines
A Printed Circuit Board (PCB) layout, in its most basic form, is a means to transfer a circuit from a breadboard to a more stable and permanent physical form. Whereas entire books and college coursework have been dedicated to PCB layout, what follows is a short overview of what to consider when making a PCB. […]