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WEBMicrowaves & RF reports on the latest insights, news, and advancements in the wireless industry, and the microwave and radio-frequency engineering world.
Introduction to RF & Wireless Communications Systems
WEBOct 13, 2017 — RF itself has become synonymous with wireless and high-frequency signals, describing anything from AM radio between 535 kHz and 1605 kHz to computer local area networks (LANs) at 2.4 GHz. However, RF has traditionally defined frequencies from a few kHz to roughly 1 GHz. If one considers microwave frequencies as RF, this range extends to …
Understanding Mixers and Their Parameters - Microwaves & RF
WEBJul 8, 2015 — Understanding Mixers and Their Parameters. Mixers remain an important part of most RF/microwave systems, prompting the need to understand this vital component and its parameters. Download this article in .PDF format. A mixer is a three-port component, which performs the task of frequency conversion. Mixers translate the frequency of …
Manpack Radio Passes MUOS Testing | Microwaves & RF
WEBJun 20, 2018 — The AN/PRC-162 (V)1 (see figure) joins Rockwell-Collins’ recent successful testing of the first airborne VHF/UHF radio to pass the MUOS test, known by its “do not harm” (DNH) nickname. “MUOS will provide the warfighter with more mobility, improved signal quality and availability, which is especially important for units on the ground if ...
The Critical Role OTA Testing Will Play in 5G - Microwaves & RF
WEBMar 1, 2019 — OTA Overview. As 5G mobile technology evolves to millimeter-wave (mmWave) frequencies of 28 GHz, 39 GHz, and beyond, several drivers will necessitate OTA testing. At mmWave frequencies, signal-absorption rates are much higher, requiring the need for directional transmissions/reception (beam focusing or …
Where Are They Now? - Microwaves & RF
WEBDec 5, 2011 — LNR Communications is now part of L3-Narda in Hauppauge, NY. Logimetrics (a supplier of laboratory-grade traveling-wave-tube amplifiers) was absorbed into Instruments For Industry (IFI). IFI has confirmed that several of the Logimetrics guys are there and they can evaluate and/or repair Logimetrics amps.
Weinschel Associates - Microwaves & RF
WEBMay 14, 2019 — Founded by Bruno Weinschel, Weinschel Associates’ foundation is a 40 year legacy as a supplier of high performance, high quality Broadband Passive Components to the RF and Microwave...
What’s the Difference Between the Four Stratum Levels?
WEBMar 8, 2019 — The Network Time Protocol (NTP) is a hierarchical protocol divided into “stratum levels” that define the distance from a reference clock timing source. The standard "Synchronization Interface Standards for Digital Networks," first released in 1987 by the American National Standards Institute (ANSI), lays out all of the official information and requirements for Stratum System Levels.
RF Demystified: What is an RF Attenuator? - Microwaves & RF
WEBSep 19, 2022 — The attenuator is a control component, the main function of which is to reduce the strength of the signal passing through it. This type of component is generally used to balance signal levels in the signal chain, to extend the dynamic range of a system; provide impedance matching; and implement various calibration techniques in the end ...
Learn About Circulators and Isolators | Microwaves & RF
WEBAug 20, 2016 — Circulators and isolators are three-port passive electronic devices that help direct the flow of microwave signals in RF equipment and systems. A port is defined as a connection point for either an input signal, output signal, or termination. Figure 1a shows the standard schematic symbol for a circulator. The arrow indicates the unidirectional ...
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