Performing these three steps can improve mmWave and beamforming performance.
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The difference between LEDs and photovoltaic cells
LED’s and photovoltaic cells play increasingly prominent roles in our world. Both are semiconductor diodes. The LED or light-emitting diode emits light while the photovoltaic cell converts light to electricity. The LED is a diode that emits light only when forward-biased. Under a forward voltage bias, electrons cross from the n-region and recombine with the […]
What’s the future for RISC-V in 5G?
The versatility of the RISC-V instruction set architecture (ISA) can be seen in the breadth of 5G applications using the technology. Examples include a complete 5G base station system-on-chip (SoC), a 5G small cell distributed unit (DU) SoC, a recurrent neural network (RNN) IC optimized for 5G radio resource management, even handsets are under development […]
Teardown: Inside a video greeting card
For around $60, you can send a greeting card that incorporates a video. When the recipient opens the card, it can automatically play a video loop that you can upload. The card charges via a USB connection which also allows you to upload the video. Specs for cards we’ve seen typically mention a 2G memory, […]
Overcoming stepper motor design challenges in 3D printers
By Dipankar Mitra, System Engineer, Texas Instruments 3D printing is a fast-emerging market with significant growth potential. 3D printers create three-dimensional objects, with complex shapes and geometries, through the successive deposition of materials directly from a computer-aided design model. The agriculture, health care, automotive, locomotive, and aviation industries are some of the first adopters of […]
Book review: How Linux Works – What every superuser should know, Third edition, by Brian Ward, No Starch Press, San Francisco
The problem with a lot of technical texts aimed at beginners is that the author has forgotten what is was like to be a novice and what concepts were unfamiliar at the beginning of the road toward expertise. (I am talking specifically about my college calculus text here.) Thankfully, author Brian Ward doesn’t make this […]
Size, weight, power, and heat affect 5G base station designs
Engineers designing 5G base stations must contend with energy use, weight, size, and heat, which impact design decisions.
How is human-powered wearable electronics progressing?
Researchers continue to search for improved solutions to power the many wireless, wearable sensing devices that are being developed to avoid frequent, or as frequent, charging and/or battery replacement. Two of the prominent research areas include thermoelectric generators (TEGs) and piezoelectric energy harvesters. With wearable thermoelectric generators (TEGs), the amount of thermo‐generated power strongly depends […]
5G and AI: How they complement each other
If properly architected, there’s now a world of applications in which AI enables 5G, and a world where 5G enables AI, all collapsed in a transparent manner for enterprise, telco, and the edge. 5G brings wireless convenience combined with the speed and reliability of wired connections as where AI brings unprecedented intelligence to machines through…
Input bias current cancellation in bipolar op amps
Bipolar operational amplifiers have an essential input bias current requirement. This bias current has to come from somewhere and can be a nuisance in some types of high impedance circuits such as charge amplifiers and transimpedance amplifiers and can result in offset voltages where input resistances aren’t matched. The example shown below has an input […]
