Feature Articles

  1. When Is Power Amplifier Linearity Important?

    Choosing the appropriate amplifier for a system is vital for the system’s total performance. While there are many different characteristics of power amplifiers, this article focuses on an amplifier’s linearity and when it is important to consider in a selection process.

  2. How Can A Low Noise Amplifier Improve My System's Performance?

    For a receiver to properly demodulate an RF signal and recover the data, the signal that arrives at the receiver must be sufficiently higher than the noise. This article presents the different benefits of using an LNA and how this instrument can improve wireless systems.

  3. What Does MIL-STD-810 Certified Mean?

    When a product is stated to be MIL-STD-810 certified, it does actually provide meaningful information about the environmental resiliency of a product. This article discusses the meaning of the MIL-STD-810 test method, how it defines the environmental test procedures and engineering considerations for a product design, and what it means for engineers looking for certified products.

  4. Role Call: RF Modeling Manager

    Role Call is a new series on RF Globalnet that will look at different jobs and career paths in the RF and Microwave industry. We’ll explore what each position entails, how much you have to know, and what experience you need to get started. Yueying Liu, RF Device Modeling Manager with Wolfspeed/CREE has held various positions in the industry since earning her doctorate in solid-state electronics from North Carolina State University in 2009. Liu’s experience ranges from GaN product engineer and modeling design engineer to RF PA designer and RF modeling engineer, before taking her current management role last year.

  5. CFA Theory Of Operation

    A CFA is a vacuum electron device (VED) which might best be described as part magnetron and part traveling wave tube (TWT). This device is used to generate power with high efficiency and voltage levels of a magnetron while the electronic interaction is with a traveling wave. This white paper further discusses CFA characteristics and its operational theory.

  6. TWT Theory Of Operation

    TWTs incorporate many basic components, including an electron gun, an RF circuit, an attenuator, and a collector. This white paper further discusses TWT characteristics and operational theory, including the effects of input/output conditions on TWTs, and cooling requirements.

  7. Magnetron Theory Of Operation

    A magnetron is a high power microwave oscillator in which the potential energy of an electron cloud near the cathode is converted into RF energy in a series of cavity resonators. The resonant frequency of a microwave cavity is determined by the physical dimension of the resonator together with the reactive effect of any perturbations to the inductive or capacitive portion of the equivalent circuit.

  8. Use Case Possibilities With Bluetooth Low Energy In IoT Applications

    Within IoT systems, Bluetooth low energy technology can be connected to the internet to be used as “repeaters” to extend a system’s range. This white paper describes how Bluetooth low energy technology works and how it can be used to connect devices to internet-based services and applications.

  9. 5G Fixed Wireless Radio Validation Case Study

    Anritsu recently hosted a major network equipment manufacturer (NEM) at our factory in Morgan Hill, CA USA to perform some early validation of their 28 GHz 5G radios. The application is to use radios for 5G fixed wireless access to compete with fiber to the home. The NEM required the use of the Anritsu Spectrum Master™ MS2720T spectrum analyzer to test the performance of these next-generation 28 GHz 5G radios in a coverage mapping exercise. The spectrum analyzer was used to measure key parameters of the NEM prototype radio in a variety of real-world environments.

  10. Understanding Cable And Antenna Analysis

    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).