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Thermoacoustic Effect Turns Microwaves into Underwater Sound

In the thermoacoustic effect, heat from electromagnetic waves striking the water’s surface generates sound waves. A University of Arizona team has demonstrated benchtop thermoacoustic communications (TAC), successfully transforming microwave signals in air into sound signals under water, received by an acoustic sensor. The experiments and theoretical analysis suggest a new approach to air-to-underwater communications.

Catch the Wave at IMS2017, Honolulu, 4-9 June

IMS celebrates its 60th year in Honolulu, HI, June 4-9, with a near-record number of papers, more than 450 exhibitors, and new events like the IEEE 5G Summit, Three Minute Thesis, Hackathon, Exhibitor Workshops, and Sales Rep Program.

5G Get Up to Speed on 5G with Free MTT-S and IEEE Webinars

MTT-S, other IEEE Societies, and IEEE Spectrum offer more than two-dozen webinars, videos, and podcasts designed to bring members into the world of 5G wireless communications

PROMOTED CONTENT More on IMS2017, New Systems Journal Announced

MTT-S President Dylan Williams calls members’ attention to the 90-plus pages of IMS2017 previews in the May Microwave Magazine, and to the debut of Microwave Systems and Applications as a “journal-within-a-journal” in Transactions on MTT.

POWER Wireless Charging of a Metal-Body Device

Loosely coupled inductive charging of an aluminum-encased smartphone delivers 8.2 W with 90% resonator coupling efficiency—with negligible heating.

CALL FOR NOMINATIONS Submit Nominations for MTT-S AdCom by 15 May

The MTT-S Nominations and Appointments Committee seeks nominations for members of the Administrative Committee to serve in the 2018-2020 term.

TECHNOLOGY Low-Power IoT Nodes and Bluetooth Low-Energy Backscatter

A prototype microcontroller-based “BLE-Backscatter” RFID tag makes backscatter signals accessible to the Bluetooth 4.0 low-energy chipsets carried by billions of smart devices, obviating specialized RFID readers.

TECHNOLOGY Cooperative MIMO Radar Network

A prototype incoherent radar network based on integrated radar sensors with independently generated frequency modulated continuous wave-modulated transmit signals, using sensors at 122 GHz, shows the feasibililty of a bistatic cooperative network approach.

MEETINGS Wireless Power, Microwave Bio, Modeling and Optimization

Upcoming MTT-S-sponsored meetings include Wireless Power Transfer (WPTC, Taipei, 10-12 May), Microwave Bio (IMBioC, Goteborg, 15-17 May), Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO, Seville, 17-19 May), and Millimeter-Waves (GSMM, Hong Kong, 24-26 May).

ADVERTISEMENT Terahertz Radar for Stand-Off Through-Clothes Imaging

12:00 p.m. EDT, Tuesday, 9 May 2017
Speaker: Goutam Chattopadhyay, Senior Research Scientist,
NASA’s Jet Propulsion Laboratory, California Institute of Technology
Moderator: Michael C. Hamilton, Auburn University


PROMOTED CONTENT WIPL-D Pro Electromagnetic Solver Updated

The new v14.0 update of the WIPL-D Pro 3D electromagnetic solver offers a long list of enhancements in de-embedding, fast MoM matrix evaluation, advanced interpolation of RCS results, improved power-balance characterization, easy creation of corrugated waveguides, a GPU cluster solver, and much more.

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 (xun.gong@ucf.edu) and newsletter editor Douglas McCormick (douglas.mccormick.us@ieee.org).