Antennas Case Studies, White Papers, & Application Notes

  1. Aperture Tuning: An Essential Technology In 5G Smartphones
    2/12/2019

    Antenna aperture tuning is essential to enable smartphones to operate efficiently over the ever-increasing range of RF frequency bands and support the transition to 5G. Smartphones need more antennas to support growing RF requirements such as new 5G bands, MIMO, and carrier aggregation (CA), but there is less space for these antennas due to changes in smartphone industrial design. As a result, antennas are becoming smaller, potentially reducing antenna efficiency and bandwidth. Aperture tuning compensates for this problem by allowing antennas to be tuned to operate efficiently on multiple bands and increasing Tx and Rx performance by 3 dB or more.

  2. Distributed Antenna System (DAS) For IoT, Cellular And Other Wireless Applications
    1/18/2019

    The Internet of Things (IoT) has continued to grow at a rapid rate in recent years. With the connectivity of more and more devices, it’s more important than ever that these devices can connect, communicate and meet the needs that users covet. Distributed Antenna Systems (DAS) are used to provide strong and reliable wireless connectivity in location where connectivity is a problem with standard wireless routers or cellular connectivity. This application note discusses the use of DAS for IoT, cellular and other wireless applications, and the benefits it can offer.

  3. Optimizing An LTE Antenna’s Matching Network
    3/9/2018

    This application note describes the process of a simple antenna for LTE band operation added to the PC board of a smartphone in XFdtd being tuned for operation in multiple frequency bands. The component values in the matching network are chosen so that system efficiency is maximized.

  4. Antenna Factor Concepts
    4/17/2018

    An antenna factor (AF) is the comparison between the field level presented to the antenna and the actual voltage produced by the antenna at its connector. This white paper explains the process of creating AF data and how to use it.

  5. Mall Communication Solutions
    3/15/2018

    At shopping malls, consumers also are able to find various types of entertainment, dining options, spa services, childcare, etc. This white paper presents Bird’s Distributed Antenna Systems (DAS) solution for meeting these wireless communications difficulties.

  6. Understanding Cable And Antenna Analysis
    10/27/2017

    A problematic base station can be replaced, but a cable and antenna system is not so easy to replace. This article covers fundamentals of cable and antenna analysis measurements: return loss, cable loss, and distance-to-fault (DTF).

  7. Providing Coverage To The YYC Calgary International Airport
    8/14/2017

    What makes communication so challenging in an airport is its large coverage area and high-capacity requirements. That’s the challenge YYC Calgary International Airport faced when it built its new international terminal. 

  8. Design And Analysis Of A Proximity Fuse Antenna For An Air Defense Missile
    10/2/2018

    Air defense missiles typically require a proximity fuse, priming the missile warhead to detonate when the missile is close enough to the target. One of the ways that such a proximity fuse can be implemented is with a small radar that is used in short-range low-power mode. 

  9. Benefits Of Low-Inductance Hybrid Cables
    8/9/2017

    Installation of remote radio systems presents many challenges for mobile radio operators, installers, and system integrators. Challenges include considerations for how the higher power requirements affect the inductance of newly integrated hybrid cycles, and how inductive voltage drops can be reduced. 

  10. Design And Matching Of A Printed Antenna Using NI AWR Software And AWR Connected For Optenni
    12/18/2017

    Ensuring maximum power transfer between an antenna and transmitter/receiver circuitry requires impedance matching of HF components in the antenna design. This app note describes the design and matching of a 60 GHz printed antenna.