Blog Posting

ARTICLES

Finding a Circuit Material for 77 GHz Automotive Radar - Part 1

This ROG BLOG is Part One of a two part series introducing the key criteria to consider when selecting a PCB substrate which will minimize circuit losses for 77 GHZ radar PCB antenna applications.  First we will discuss components of PCB circuit loss, and then introduce six key material properties critical to developing low loss millimeter wave circuits at 77 GHz.


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New Thin GaN Structure on SiC Improves RF Performance

SweGaN is a spin-off from Linköping University that recently announced a new GaN-on-SiC HEMT heterostructure, QuanFINE ™, built on the concept of a GaN−SiC hybrid material that combines the high-electron-velocity thin GaN with the high-breakdown bulk SiC. According to their web site, the structure is realized by the company’s unique hot-wall MOCVD process and shown good result in both high-frequency and power transistors. 


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5G is coming: What to expect and why

Dr Luyun Jiang, Technology Analyst, IDTechEx

th-Generation Wireless Systems (5G), says the optimist, will revolutionize our life as the 3G/4G systems did. While the majority are still waiting to link to the 4G network, the top telecoms have started the war for the next generation of mobile communication. 5G is expected to finally bring the autonomous car, VR and internet of things to reality and make science fiction come true.


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Patrolling PIM in RF/Microwave Circuits

Unwanted levels of PIM can result from several different factors, including the amplitudes and frequencies of the multiple transmitted tones, the configuration of a circuit’s transmission lines, and the current density and power level of the application. Multiple signal tones are usually denoted by their fundamental frequencies, such as f1 and f2, with the frequencies of their PIM spurious signals resulting from the differences between different harmonics of the fundamental tones. Learn about how PCB designs can reduce PIM.


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Cloud Services Accelerating Virtual Design Services

OnScale Brings SaaS Scale to RF Design

OnScale is a leader in Cloud computer aided engineering (CAE), running multi-physics solvers on its Cloud HPC platform running on Amazon Web Servers. Their platform helps engineers to accelerate innovation for next-generation products such as 5G smartphones, IoT, biomedical devices and driverless car products by greatly reducing the solving time with massive computing power and using optimized algorithms.


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Coming Soon - 100 Gbps Wireless

This week two separate news items, one from Tektronix/IEMN and the other from Nippon Telegraph and Telephone Corporation (NTT), both announced development of 100 Gbps “wireless fiber” solutions. Each took a different route with Tektronix and IEMN (a French research laboratory) demonstrating a single carrier wireless link with a 100 Gbps data rate signal at 252 to 325 GHz per the recently published IEEE 802.15.3d standard while NTT used a new principle, Orbital Angular Momentum (OAM) multiplexing at 28 GHz  with MIMO technology.


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