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.
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.
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.
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.
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).
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.
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 (firstname.lastname@example.org) and newsletter editor Douglas McCormick (email@example.com).