Feature Articles

  1. Today’s RF Semiconductor Landscape is Changing – Why?

    What are the driving forces behind today’s rapidly changing RF semiconductor landscape? This article delves into the two major driving factors of change in the industry: the desire for ubiquitous sensing and the demand for more and better connectivity.

  2. Q&A With David Lu, VP, D2 Platform & Systems Development, AT&T

    In June, David Lu discussed his company’s perspectives on 5G services — as well as his own — at IMS 2018’s 5G Summit in Philadelphia. Here, he delves a little bit deeper into 5G’s development and future, and discusses his own career.

  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. Power Amplifiers In Parallel For Higher Output Power – Hybrid Power Combining

    This article presents a solution of using four L60T01 amplifiers in hybrid configuration as an alternative for a higher output power amplifier.

  6. Using 150 V-Bias RF GaN For 1 kW UHF Radar Amplifiers

    This white paper presents and discusses the advantages of using high power RF amplifiers that employ a high voltage GaN technology operating above the industry standard of 50 V.

  7. Comparison Of Jitter Measurements In The Time And Frequency Domain

    When analyzing the robustness of data transmission systems, jitter is a key indicator. It is recommended to use jitter measurement instruments for both the time and frequency domain in order to differentiate between fast and slow moving artifacts. This white paper compares measurement results of jitter in the time and frequency domain.

  8. Understanding Diamond As A Material For RF Packaging

    Diamond’s unique mechanical, optical, thermal, and electrochemical properties make it effective for a range of industrial uses. Synthetic  and natural diamonds display the same chemical structure and physical properties, but synthetic diamonds offer control over defects and synthesis conditions, allowing manufacturers to optimize and tailor their properties.

  9. Optimizing Battery Life And Reliability: Quartz Crystals For IoT And Wearable Devices

    This white paper presents a technique using quartz crystals mated with energy saving low power SoCs for reducing oscillator power consumption while achieving optimal oscillation margin. The paper also demonstrates measurements and key principles for designing reliable and low power oscillators.

  10. Spectrum Emission Mask Measurements: Special Considerations For Millimeter-Wave

    A spectrum emission mask is a convenient solution for checking if a 5G millimeter-wave (mmWave) device meets relevant standard emissions for unwanted interference. The mask is a limit of power at specific frequencies surrounding the carrier channel expressed as a function of the carrier power. The range for spectrum mask measurements has traditionally been in the MHz range, but broadband mmWave signals will require new regulations and test protocols in the 30 to 300 GHz range. This white paper discusses the special considerations for spectrum emission mask measurements for mmWave frequencies.