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ASSISTIVE TECHNOLOGY
Antennas for an Intraoral Tongue Drive

A new arch-shaped intraoral Tongue Drive System (iTDS, a tongue-controlled wireless assistive technology operated by a user-defined tongue gestures to issue control commands) occupying the buccal shelf space in the mouth, without limiting the available space for tongue motions, with the design, characterization, and comparison of three 2.4-GHz antennas: patch, dipole, and planar inverted-F.

CALL FOR PAPERS Advanced Materials and Processes Papers Due 2 Apr.

The IEEE MTT-S 2018 International Microwave Workshop Series on Advanced Materials and Processes (Ann Arbor, MI, 16-18 July) seeks submissions on all areas of novel materials, advanced manufacturing and processing, and integration techniques. Submission deadline is 2 April.

IPT Optimizing for Inductive Power Transfer to a Miniature Rectenna

Systematic optimization of single-ended (SE) and differential (DF) reader coils and rectenna designs in near-field inductive power transfer (IPT) systems shows that DF topology is more efficient. Under RF power of 33.1 dBm, the rectenna, with a coil size of only 0.01 mm², harvests the designed 1 V/0.1 mA.

GRANTS Undergraduate Scholarships Application Deadline 5 Apr.

Up to 10 Undergraduate/Pre-Graduate Scholarships in the amount of $1500 may be granted semi-annually to assist BS and MS students in electrical engineering. Click here for a description of the scholarship program, eligibility requirements, and an application form. The next application deadline is 5 April 2018.

ANTENNAS Built-In Test of Phased Arrays

A built-in self-test technique for phased arrays applies code modulation to each element to allow parallel in situ measurements with a built-in distribution network to allow injection or extraction of test signals, extracting amplitude with 1 dB accuracy and phase with four degree accuracy.

YOUNG PROFESSIONALS Report from Radio Wireless Week

The MTT-S Young Professionals forum and networking event during Radio Wireless Week 2018 (Anaheim, CA, 14-17 January) included a panel on technology trends and suggestions for making the most of current growth to excel in the job market.

INDUCTANCE FFT-Assisted Extraction for Voxelized Geometries

VoxHenry is a fast Fourier transform (FFT)-accelerated integral-equation-based simulator for extracting frequency-dependent inductances and resistances of structures discretized by voxels. The package can accurately compute frequency-dependent inductances and resistances of arbitrary structures on the desktop.

BIOMEDICINE Characterizing Biological Tissues at D-Band

The first measurements of complex dielectric and magnetic properties of liquid and solid biological tissues taken from human arteries in the frequency range 110–170 GHz show large differences between dielectric properties of blood, adipose tissue, calcified tissue, and fibrous tissue.

PICOSECOND IMPULSE RECEIVER High-Speed Wireless Clock Synchronization

A millimeter-wave impulse receiver detects the amplitude of picosecond pulses and extracts their repetition rate with low timing jitter, enabling wireless time transfer with an accuracy of 0.38 ps. The fabricated chip is used to detect the amplitude and the repetition rate of sub-6-ps pulses.

RADIO ASTRONOMY Improved Cryogenic Low-Loss Edge-Mode Isolator

The design, fabrication, and measurement of an edge-mode isolator operating over a multioctave frequency range, from 4 to 22 GHz at 4-K cryogenic temperature. This isolator has input and output reflection coefficients below -15 dB from 4 to 22 GHz, and is suitable for a wide range of low-noise applications.

COMING UP THz for Space; Texas Wireless; Microwave Technology

Upcoming MTT-S-sponsored meetings include Space Terahertz Technology (ISSTT, 26-28 Mar., Pasadena, CA), Wireless and Microwave Circuits and Systems (WMCS, 5-6 Apr., Waco, TX), Wireless and Microwave Technology (WAMICON, 9-10 Apr., Sand Key, FL).