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What’s the Difference Between the Four Stratum Levels?
Mar 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.
Where Are They Now? - Microwaves & RF
Dec 4, 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.
6 Types of Resonators Used Across the RF/Microwave Universe
Sep 9, 2015 · 1. These ceramic resonators can be used in applications spanning 200 MHz to 10 GHz. (Courtesy of Integrated Microwave Corp.) Resonators are key to the performance of a range of RF/microwave components, such as oscillators and filters. The types of available resonators include coaxial, dielectric, crystal, ceramic, surface acoustic wave (SAW ...
VADR Radar System Adds C-Band Range | Microwaves & RF
Oct 11, 2024 · The U.S. Air Force Advanced Radar Threat System Variant3 (ARTS-V3) system is extending its spectral reach into C-band with the latest advances from Lockheed Martin.The variable-aperture digital radar (VADR, see figure) now includes C-band technology along with its existing X-band frequency coverage for increased long-range adversarial threat coverage.
Times Microwave Systems | Microwaves & RF
Nov 18, 2021 · Times Microwave Systems was founded in 1948 as the Times Wire and Cable Company. The company pioneered closed cell low-loss polyethylene foam and taped PTFE dielectric coaxial cables. Those developments established today's high-performance coaxial cable industry. Expanding our RF and microwave connector design and manufacturing expertise ...
Design Inset-Fed Microstrip Patch Antennas - Microwaves & RF
Dec 1, 2003 · The transmission-line model was used to perform parametric studies of the patch for various values of ε r (2 ≤ ε r ≤ 10). Figure 4 shows that a rectangular microstrip patch antenna fed by a microstrip line at the edge (y 0 = 0) will have a higher input resistance varying from approximately 150 to 450 Ω for varying ε r.Also, it was observed that the input impedance falls rapidly as the ...
Solutions for RF PCB Design and Manufacturing Challenges
Sep 23, 2022 · The applications of radio-frequency PCBs are diverse, encompassing wireless technologies, smartphones, sensors, automotive, aerospace, military, robotics, and more.. Some of the significant merits of RF PCBs include faster transmission of high-frequency signals due to lower impedances, easy placement of fine-pitch components, and optimized performance with multi-layer board stackup.
Poster: Microwaves & Beyond | Microwaves & RF
Oct. 9, 2024. Everything in one place with the microwaves and beyond reference poster. Electronic devices are pushing the frequency spectrum higher, necessitating new coaxial connectors to handle the higher frequencies with waveguides often used at the millimeter end of the spectrum. Our new poster summarizes the many size variations required ...
Interested in Reconfigurable Intelligent Surfaces Tech for 6G?
Oct 2, 2024 · David Maliniak. Related To: Microwaves & RF. The high frequencies, and thus short wavelengths, of 6G cellular emissions are apt to be problematic in dense urban settings. Reconfigurable intelligent surface (RIS) technology is one possible solution for improving the capacity and coverage of 6G services in cities.