Feature Articles

  1. Filter Terminology And Specifications

    This guide acts as a quick reference for terms used to discuss filter technologies.

  2. RF Filtering For 5G Millimeter Wave Applications

    This white paper discusses mmWave 5G communications. The paper also offers a guide for available RF filtering options at these frequencies, review mmWave frequencies and their applications, and cover what filtering technologies will be available for use at mmWave frequencies.

  3. EM Simulation Of 28 GHz Series-Fed Patch Antenna Array For 5G

    Series-fed patch elements forming an array are simulated to demonstrate antenna performance and beamforming including S-parameters, gain, and effective isotropic radiated power (EIRP) at 28 GHz. Beam steering is performed in one plane by adjusting the phasing at the input ports to each of eight elements.

  4. Beamforming For An 8x8 Planar Phased Patch Antenna Array For 5G At 28 GHz

    An 8x8 planar antenna array creates narrow beams capable of scanning large sectors in front of the antenna.  This example focuses on displaying typical simulation results for beams and possible plots of coverage from the full array and combinations of sub-arrays.

  5. Tuning Element Application Guide

    Specially designed microwave tuning elements for tuning microwave circuits such as filters, oscillators, delay lines, multiplexers and dielectric resonant structures.

  6. Introduction To RF Matrix Switch Types And Functionality

    There are many types of RF matrix switches with configurations that distribute RF signals in very different fashions. This app note describes the functionality of these types of switches, their advantages and disadvantage, and how to choose the best switch for each application.

  7. Model-Based GaN PA Design Basics: What’s In An I-V Curve? (Part 2)

    Understanding the impact and nuances of I-V curves is a fundamental part of learning how to design GaN power amplifiers. Part 2 of the GaN design series introduces the basics of using nonlinear models to make the design process more accurate and efficient.

  8. Enabling 10 Gbps Cable Networks With Full Duplex DOCSIS 3.1

    Full Duplex DOCSIS 3.0, FDX for short, is one approach CATV operators are using to increase the capacity of HFC networks to support next-generation data requirements. This article discusses this new technology, its biggest challenges, and how MSOs and RF suppliers are bringing it to life.

  9. GaN HEMT Models 101: How Do Nonlinear Models Help With GaN PA Design? (Part 1)

    GaN power amplifier design requires some different approaches and thinking compared to LDMOS or GaAs. Learn how nonlinear simulation models, like those from Modelithics, can help speed up design processes by downloading Part 1 of a two-part introductory series.

  10. 5 Things To Consider When Designing Fixed Wireless Access (FWA) Systems

    In the earliest stages of 5G, fixed wireless access (FWA) systems will be used to deliver gigabit internet speeds to homes, apartments, and businesses in a fraction of the time and cost of traditional cable/fiber installations. Like other technological advancements, FWA has its own design challenges and considerations. This article presents five considerations to keep in mind when designing FWA systems.