Blog Posting | Microwave Journal

Advantages/Disadvantages of Digital Beamforming in Satellite Applications

February 22, 2021

Though Digital beamforming offers unique advantages in real-time reduction in co-channel interference and delivering multiple beams, the heightened complexity of the digital beamforming payload poses many real challenges and even disadvantages for some applications compared to phased-array antenna systems. Read this to learn more.

High-band economics: Can mmWave spectrum make 5G networks more cost effective?

GSMA’s Head of Greater China, Sihan Chen

January 21, 2021

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With 5G rollouts and adoption progressing quickly, and with the mmWave ecosystem showing signs of readiness, the main question that the mobile industry faces today is whether and where mmWave solutions can be cost effective.

How the Nature of the RAN is Fundamentally Changing

January 13, 2021

Adrian O’Connor, CEO, Benetel

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Over the decades, the RAN has been subject to ongoing technological progression (to improve the quality of service, raise data rates, support new applications, etc.) through enhancements being made at regular intervals. The majority of these have (relatively speaking at least) been fairly subtle. Looking ahead, these kind of incremental alterations are no longer going to be enough. What is called for, instead, is dramatic and decisive disruption of the RAN at its very foundations.

Digital Beamforming Trends For Satellite Applications

January 4, 2021

The emergence and rapid development of active antenna systems for terrestrial communications has also spurred development of highly integrated and capable digital beamforming (DBF) solutions for satellite applications. Read about this new development.

GSA 5G Ecosystem December 2020 Report

More Than 300 5G Devices Released to Date

December 7, 2020

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The Global Mobile Suppliers Association (GSA) announced the the number of 5G devices has surpassed 500 for the first time, accompanied by rapid increase in the number of commercially available 5G devices.

Horns Will Help to Make 5G Millimeter Waves a Reality

Mario Leone, Owner Impulse Technologies, Inc.

November 18, 2020

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Horn antennas and the waveguide transmission lines to which they are typically attached may seem like things of the past, or technologies that have long since seen their primes. But in an age in which the world is readying for the 5G cellular wireless communications, horn antennas provide real solutions for communications links operating at millimeter-wave frequencies. Learn about the advantages of using horn antennas in your design.

The Importance of Cabling in Probe Stations for High Frequency 5G Applications

Masaru Omoto, Junkosha

November 18, 2020

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Probe stations allow a user to position electrical, optical or RF probes on a silicon wafer and connect them to a Vector Network Analyzer (VNA) so that the device can be tested. Using high-end cabling in a probe station is crucial: cables must be low loss, lightweight and both phase and amplitude stable against temperature, flexure and vibration. Learn how cable manufacturers are optimizing for high frequency 5G applications.

Thoughtful Material Choices Can Help Shrink RF Circuits

November 18, 2020

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Smaller is often wiser in this age of electronic mobility and portability, and the choice of circuit material when starting a design has much to do with attempts to create smaller RF and microwave circuits. Circuit materials with higher dielectric constant (Dk) typically yield circuits with smaller features and dimensions for a given frequency range. But the higher Dk values can also result in increased insertion loss and other performance tradeoffs. The Dk value of a circuit material will also impact such circuit parameters as radiation loss, dispersion, and coupling.

Digitization of Satellite RF Systems

November 10, 2020

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The past several years have seen wide upheaval in the space communication sector, from satellite payloads to ground station technology. This renaissance of space communications has largely been a shift from the five-decade-long approach of highly dedicated satellite communication and ground station technology to increased digitization and virtualization. A key aspect of this transformation is the digitization of satellite RF systems to yield more compact, lower weight, more configurable, and lower cost. Learn about this evolving trend.

New Features for RF Engineers in Comsol 5.6

October 8, 2020

COMSOL offered a preview of the upcoming release of COMSOL Multiphysics® version 5.6 at the COMSOL Conference 2020 North America, October 7–8. It is planned to be released in fall 2020 and brings faster and more memory-efficient solvers, better CAD assembly handling, application layout templates and a range of new graphics features including clip planes, realistic material rendering, and partial transparency. See what is new for RF engineers.

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