Feature Articles

  1. Ensuring Reliable, In-Tunnel Wireless Connectivity
    12/8/2017

    Bird Technologies offers an active Distributed Antenna System (DAS) that delivers all different technologies, bands, and services over a single strand of fiber, with excellent uplink network performance that is perfect for tunnel environments.

  2. Reaching New Levels Of Linearity In Passive Mixers With GaN Technology
    12/5/2017

    Until recently, the benefits of GaN technology beyond usage in amplification have not been pursued. Custom MMIC has recently been working with domestic foundries to investigate the use of GaN for passive mixers. The resulting discovery was that the high-linearity properties of GaN amplifiers also translated to mixers. This application note discusses the results of studies on new levels of linearity from GaN technology within different types of passive mixers.

  3. Understanding Cased/Caseless Hybrid Couplers
    12/4/2017

    This white paper covers the different types of Anaren cased and caseless hybrid couplers, as well as their typical operating characteristics, and equations for each specification.

  4. How To Quickly Evaluate High-Performance Oscillators Using Holzworth HA7402A Phase Noise Analyzer
    12/4/2017

    The process of evaluating the performance of ultra-low-phase noise oscillators requires phase noise test systems with lower measurement times, lower noise floor capabilities, and high reliability and repeatability of test data.

  5. Pulse Descriptor Word (PDW) Streaming With The R&S®SMW200A
    11/30/2017

    Radar warning receivers (RWR) and electronic support measures (ESM) require signal validation against realistic and agile radar scenarios. In the past, these complex scenarios have only been available with dedicated and highly integrated radar scenario simulators. Now, the R&S®SMW200A vector signal generator has been designed with the capabilities to take on the role. The instrument can generate the most modern I/Q modulated radar signals from streamed pulse descriptor words (PDW) received via LAN.

  6. Where Is Wi-Fi Heading?
    11/20/2017

    What matters the most when it comes to the future of Wi-Fi technologies? Some the major concerns from customers include high data rate, high capacity, and a good range of coverage. This white paper covers these different areas of interests, the problems involved in implementing Wi-Fi growth requirements, as well as possible solutions and expectations.

  7. Role Call: Senior Hardware Engineer
    11/20/2017

    RF Globalnet's Role Call series offers a “peek behind the curtain” at different jobs and career paths in the RF and microwave industry. Our most recent subject is Tom Offer, a Senior Hardware Engineer with CommAgility. Tom’s experience has included work with embedded systems, FPGA, and digital signal processing within RF, LTE, telecommunications, and other wireless markets.

  8. How Not To Run Hot: Overcoming Thermal Challenges In Wi-Fi Front End Designs (Part 1)
    11/20/2017

    It can be hard to fully account for thermal management and affected parameters in wireless access points or customer premises equipment prior to FCC certification. This article is the first in a series that looks at the design challenges for Wi-Fi front end designs. Part 2 will cover coexistence and interference.

  9. 5G New Radio Architecture And Challenges
    11/15/2017

    NR is billed as a more capable air interface, and will need to operate in both the frequencies below 6 GHz and above 24 GHz (mmWave) with a frame structure supporting both TDD and FDD, as well as operate in both licensed and unlicensed spectrum.

  10. GaN IC Die Handling, Assembly, And Testing Techniques
    11/14/2017

    This white paper describes the storage and handling requirements for GaN IC chips, as well as recommended assembly and testing techniques for users. Guidelines are also provided to aid the user in the assembly of GaN IC die in a manner consistent with desired electrical performance.