Feature Articles

91. Modeling Of A Magic Tee Waveguide Coupler 10/15/2019

    This white paper offers a short depiction of FEKO’s waveguide capability with a magic T coupler as an example.

92. MMICs vs. Discrete Circuits, What Are The Trade-Offs? 10/15/2019

    One major decision a PA module designer must make during development is the choice of architecture utilized in the amplification circuit. The two most widely used options are a Monolithic Microwaves Integrated Circuit (MMIC), or a design built around discrete components. Each approach provides advantages and particular challenges.

93. High Power Switched Filter Bank Options For RF Communications And Electronic Warfare (EW) Applications 10/15/2019

    Switched filter banks are beneficial to Radio Frequency (RF) communication systems and are utilized in both receivers and transmitters to reduce signal interference from harmonics, spurious emissions, strong signal interferers, and to limit noise power for optimized system performance.

94. Development Of The Next-Generation Openvpx-Based Embedded System Standard 10/8/2019

    Something exciting is happening in the service representative community. Representatives from three different programs, one from each of the U.S. Department of Defense (DoD) services, have come together with a common objective to solve their respective acquisition problems with an agreed upon, open architecture standard. Here is the final part of a 3-part article covering the SOSA (Sensor Open System Architecture) Consortium’s efforts.

95. Introduction To ANSYS 5G Antenna Solutions 10/3/2019

    This white paper addresses the complexity of designing various points in 5G systems, and discusses possible solutions to design and simulate antenna systems, antenna-to-antenna coupling, environmental effects on signal propagation, and V2V / V2X communication.

96. Introduction Into Theory Of Direction Finding 10/2/2019

    While direction finding for navigation purposes is becoming less important, there is a growing demand for determining the location of emitters as the mobility of communications equipment increases. The importance of direction finding lies in the fact that spread-spectrum techniques are increasingly used for wireless communications. This means that the spectral components can only be allocated to a specific emitter if the direction is known. Direction finding is therefore an indispensable first step in radio-detection, particularly since reading the contents of such emissions is usually impossible.

97. Functionality Testing Of Automotive Infotainment Devices 9/27/2019

    Modern day vehicle interactivity takes place on the centrally placed touchscreen head unit display (HUD) on the car dashboard and their infotainment systems have become a central hub for a wide range of vehicular functionality. These systems provide driver entertainment and information by integrating different functions. Examples include in-vehicle connectivity with wireless devices and connecting with external communications, transmission, radio and satellite network providers. This article discusses the challenges of functionality testing in automotive infotainment devices and presents a test and measurement solution.

98. The Wi-Fi Evolution 9/26/2019

    Since Wi-Fi was first released, its standards have continually evolved — typically resulting in faster speeds and network/spectrum efficiency. This paper discusses the basics of Wi-Fi standards and the evolution of Wi-Fi technologies.

99. Resolving Interference In A Crowded Wi-Fi Environment Using BAW Filters (Part 2) 9/26/2019

    There are any number of strategies that consumers can try to fix interference problems with Wi-Fi in their homes, but as an RF engineer, how can you design a Wi-Fi access point that addresses the biggest interference issues from the outset? 

100. Making 5G Work: Accelerating Testing Across The Workflow To Put 5G Devices In The Hands Of Customers 9/19/2019

     5G represents an exponential increase in technical complexity with challenges coming from 5G NR, massive MIMO, mmWave frequencies, and OTA test methods. This paper includes tips to help manufacturers accelerate time to market across the 5G workflow.