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The Microwave Newsletter

News for the Microwave and Wireless Engineer

21 June 2017
Understanding Phase Noise from Vibrating Antennas
Vibrating antennas distort signals. Previous analyses have focused on how physical distortion of the antenna structure changes beam patterns. The vibrational velocity and acceleration also have an effect, however, producing Doppler distortions that contribute heavily to noise at vibration frequencies up to  1000 Hz.

IEEE MTT-S Webinar

Energy Harvesting and Wireless Power Transfer for RFID and Wireless Sensors

12:00 p.m. EDT, Tuesday, 11 July 2017
Speaker: Charles Campbell, 
Heriot-Watt University
Moderator: Michael C. Hamilton, Auburn University

Call for Papers    Substrate Integrated Waveguides for MHz through THz

Submit papers by 1 October 2017 for the April 2018 IEEE Transactions on Microwave Theory and Techniques special issue on “Substrate Integrated Waveguide Circuits and Systems for MHz-Through-THz Wireless and Photonics Applications.”

Materials    Surface Roughness and Signal Loss

Experiments bear out simulations using new Gradient Model for the impact of surface roughness on signal loss and phase delay in typical transmission lines in the 100 GHz range.

Young Professionals    Decoding the Professional Paper Submission Process

For younger engineers, members of the International Microwave Symposium's Technical Paper Review Committee demystify the conference-paper submission and review process. 

5G Focus    Measurement Challenges for 5G and Beyond

A team of 23 NIST engineers outlines progress in their mission to identify and develop new measurement science for the next generations of wireless communications.

Meeting    Radio Frequency Integration (RFIT2017, Seoul, 30 Aug-1 Sep)

Conference topics include device technologies, modeling, CAD, packaging, passive circuits and antennas, power ICS, mmWave and THz ICs, high-speed data transceivers, and much more.

THz Spectroscopy    Identifying Transgenic Maize

Applying principal component analysis and a support vector machine method allows researchers to reliably identify genetically modified maize samples by their terahertz spectra, providing a fast alternative to gene or protein analysis.

Oil & Gas    Novel, Inexpensive Water Fraction Sensing

A modified T-resonator, produced by screen printing and applied directly to the outside of oil-rig piping, accurately senses the water content of the flow within, without conditioning or homogenization.

Wireless Power    A New Way to Separate Tag-to-Reader Frequencies

A proposed approach for inductive wireless power transfer tag-to-reader communication employs a new method to separate transmitter and receiver frequencies.

Coming Up    Wireless Power, Microwave Bio, Modeling and Optimization

Upcoming MTT-S-sponsored meetings include the International Microwave and Optoelectronics (IMOC2017, Brazil, 27-30 August), Radio Frequency Integration (RFIT2017, Seoul, 30 August-1 September), and Ubiquitous Wireless Broadband (ICUWB2017, Salamanca, 12-15 September).

High Temperature Co-Fire Ceramic
Microwave Packaging

AdTech Ceramics has over 45 years of experience producing multilayer alumina and aluminum nitride electronic packages for the microwave industry.  Packages are manufactured either to customer specifications or with design assistance using the latest simulation techniques.

New Products Promoted Content

Advanced WIPL-D EM Solver with Support for Arbitrary Number of GPUs

The new GPU parallelization algorithm increases efficiency of multi-GPU computations, and supports an arbitrary number of GPUs. It is implemented in all phases of EM simulation, resulting in maximum speed-up.
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COMSOL Multiphysics and COMSOL Server, Version 5.3
COMSOL released its latest COMSOL Multiphysics and COMSOL Server simulation software. Version 5.3 provides simulation specialists with notable performance improvements and powerful app design and deployment capabilities with new modeling and development tools, solvers, and user-driven features. In many cases, users will experience a speedup of ten times or more in software responsiveness, such as in preprocessing tasks for handling models with several thousand boundaries and domains.
Have Something to Share With MTT-S Colleagues?
Members of the IEEE Microwave Theory and Techniques Society who want to share information about events, conferences, contests, publications, or other topics of interest to MTT-S colleagues are invited to e-mail Newsletter Working Group chair Xun Gong ( and newsletter editor Douglas McCormick (

IEEE MTT-S Tech Focus

Power Amplifiers and Transmitters for Software Defined Radio Systems

Free access to a collection of selected papers from IEEE microwave journals and magazines, covering software-defined power-amplifier applications for the new communications era.

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