While the wireless carriers, equipment suppliers, and component suppliers have cranked up the 5G marketing hype, there is some resistance to deploying the technology because of health concerns. There is some credible evidence in the science regarding health effects resulting from exposure to RF energy. In 2019, Larry Desjardin looked at the science in a…
Signal Hound API adds Linux
With 5G ramping up and much of it operating below 6 GHz, engineers need to generate and analyze signals in the FR1 band. Signal Hound, a maker of PC-connected RF signal sources and spectrum analyzers, now offers Linux support for its software. You are now free to develop your own applications for the company’s…
Test 802.11ax signal quality for transmitters and receivers
Given the need for ever-increasing Wi-Fi data rates and number of connections, IEEE 802.11ax builds on 802.11ac at the physical layer by adding support for both 2.4 GHz and 5 GHz as well as denser modulation. That is, 1024 QAM to increase data rates. The so-called “Wi-Fi 6,” IEEE 802.11ax also adds orthogonal frequency-division multiple…
Analyst: 5G is all about the traffic
If you’ve been following 5G technical developments for the last few years, you probably know that 5G encompasses more than just faster download speeds. You may have heard about low latency (1 msec or less) and the applications that makes possible. Now, 5G is in deployment and the hype far exceeds reality. The hype, of…
What every engineer should know about IEEE 802.3bt PoE
Power over Ethernet (PoE), a networking feature defined by the IEEE 802.3af and 802.3at standards, enables Ethernet cables to supply power and data simultaneously to network devices over an existing data connection. Approved on September 27, 2018 by the IEEE-SA Standards Board, the IEEE 802.3bt standard lets significantly more power to be passed over the…
5G’s current state: What you need to know
Ed. Note: All material in this article taken from the author’s report “5G: What Are the Real Status and Real Economics?” published by IGI Group. 5G Technology World interviewed Holliday for an upcoming article. We read a great deal about 5G in the local papers and hear about it almost every night on TV news.…
Isolators cut reverse-traveling signals at mmWave frequencies
To minimize issues from standing waves, engineers have long used Faraday rotation isolators that let forward-traveling signals pass to the load while attenuating reverse-traveling signals such as reflections. Higher frequencies, however, bring a new set of problems such as insertion loss that Micro Harmonics claims to have solved with its mmWave isolators. The series consists…