Featured Articles

  1. CW Operation Of QFN-Packaged Pulsed GaN Power Amplifiers

    Improvements have been made to GaN amplifiers at microwave frequencies that have increased their generated output power levels while also shrinking the size of the system. These developments, however, present the challenge of providing sufficient thermal management. This Qorvo® application note discusses the thermal issues involved with using high-powered, small packaged (e.g. QFN) GaN amplifiers within high power CW systems. Download the full paper for considerations on component mounting in order to provide a low thermal impedance path to the system heat sink for optimum operation and reliability, using the TGA2307-SM as an example.

  2. Qorvo Small Cells Solutions

    Carriers are able to deploy more spectrum range, add capacity, and improve cell edge performance through the densification of small cell outdoor technologies. Since small cells differ in power level, geographical coverage, regional band allocation, and the number of users serviced, OEMs must produce their own small cells to accommodate several stock keeping units. Qorvo offers innovative RF solutions such as filters, amplifiers, switches, and antenna tuning devices that enable customers to meet their design requirements for small cell applications.

  3. Connecting The $11 Billion Asset Management Market

    The cellular machine-to-machine value-added services market is poised to dominate the transportation, utility, eHealth, and emerging IoT markets. With a market value estimated to exceed $11 billion by 2020, CSPs and device manufacturers will benefit by deploying tools and services enabling a secure M2M VAS communication network.

  4. On The Road To Seamless Connectivity, Wi-Fi Has No Speed Limits

    Consumers expect a high standard of network connectivity. Even though our global data consumption has risen from petabytes per month to exabytes per month, users do not want to experience any issues. While Wi-Fi is used to offload the cellular network, high-demand applications continue to cause strain, and smartphone manufacturers continue to pressure carriers to make network enhancements to offload data traffic. 

  5. Gallium Nitride RF Devices From Qorvo For Harsh Military Environments

    GaN devices can operate at higher bias voltages, which provides several advantages at both the system/subsystem and circuit level, leading to a proportional decrease in current requirement for the circuit. The bottom line: GaN improves the system-level trade-off of size, weight, and power.

  6. 4G LTE Accelerates Growth of Radio Frequency Filters

    Factors driving the explosive growth of the RF filter market include crowded spectrum, explosive proliferation of frequency bands, and carrier aggregation. Thus, engineers must consider many criteria when selecting filters. 

  7. Go GaN – Go Green

    We hear in many articles that GaN technology is “more green” than current Si- or CMOS-based technologies. But, what does this really mean? This guest column breaks GaN’s environmental friendliness down into two distinct areas - lower installation cost and lower system-level operating costs.

  8. GaN Thermal Analysis For High-Performance Systems

    This paper addresses Qorvo’s integrated approach to thermal design that leverages modeling, empirical measurements (including micro-Raman thermography), and finite element analysis (FEA) for high performance microwave GaN HEMT devices and MMICs. This methodology is highly effective and has been empirically validated. By properly addressing FEA boundary condition assumptions and the limitations of infrared microscopy, resulting model calculations are more accurate at both the product and end application level than traditional methods based on lower power density technology.