Simple Constant-Dielectric Beamformer for Hybrid MIMO

In tests at 28 GHz, a low-complexity, low-cost beamformer, consisting of constant dielectric (εr) material with antenna feeds, was evaluated for uplink signal-to-noise ratio of user terminals with zero-forcing (ZF) baseband signal processing...and significantly outperformed conventional antenna array beamformers with analog phase shifter networks.
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International Microwave Symposium, 2-7 June, Boston

The MTT-S's 2019 IMS Microwave Week will be held 2-7 June 2019 in Boston, MA. The centerpiece International Microwave Symposium (IMS), the Radio Frequency Integrated Circuits Symposium (RFIC), and Automatic Radio-Frequency Techniques Group Conference (ARFTG), offer technical sessions, industrial exhibits, plenary and panel sessions, and more.
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mmWave Continuous-Mode Power Amps for 5G MIMO

Researchers at the Georgia Institute of Technology present three different millimeter-wave continuous-mode power amplifiers (PAs) for 5G MIMO applications. All three designs achieved wide or ultra-wide bandwidth with peak power-added efficiencies of 43.2% to 53%...and all outperformed reported silicon-based 5G PAs in efficiency over an ultrawide bandwidth.
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Hardware and Systems for 5G (Atlanta, 15-16 Aug.)

The IEEE International Microwave Conference (IMC-5G, Atlanta, 15-16 Aug.) brings together researchers and practitioners from different backgrounds to share the most recent advances in hardware and system technologies for 5G and beyond. IMC-5G 2019 will feature a two-day oral and poster presentations, invited talks and tutorial, and an industrial exhibit.
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Low-Leakage, Digitally Modulated mmWave Phased Array

A new method for suppressing undesired spatial leakage of phased arrays is uses antenna elements with digitally modulated quadrature phase shift keying (QPSK) and on-off keying (OOK) elements Fine-grain magnitude and phase control is not required. Simulation and tests show that the leakage power can be suppressed to -25 dBc for most zenith angles between 10º and 50º.
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Fundamentals of Radar: It Depends on the Application

Listen to the latest MTT-S on-demand webinar, "Fundamentals of Radar: It Depends on the Application. A Tutorial Introduction" with Hermann Brian Sequeira of the Johns Hopkins University Applied Physics Laboratory. (The tutorial includes a mathematical supplement available for download.) Or dip into the Society's Webinar Library for more topics.
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High-Resolution 160-GHz Imaging MIMO Radar Using MMICs

A high-resolution frequency-modulated continuous-wave short-range imaging radar achieves a range resolution of about 1 cm and 16 GHz bandwidth around 160 GHz. Eight coherently coupled MMICs (each with a transmit and receive antenna on-chip) help overcome losses and PCB tolerances. Signals on the PCB are below 12 GHz, facilitating fabrication.
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Strategies for Traceable sub-mmWave VNA Measurements

Metrologists at the U.K. National Physical Laboratory and the Universities of Leeds and Glasgow present a strategy for achieving metrological traceability using vector network analyzers (VNAs) at submillimeter-wave frequencies (300 to 3000 GHz), illustrated using measurements made in the WM-250 (750 GHz to 1100 GHz) waveguide band.
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Full-Field-of-View Hybrid Beamformer for Low-Latency mmWave

An 8-element MIMO hybrid beamforming receiver array with autonomous millimeter-wave (mm-Wave)/RF front-end beamforming and digital baseband beamforming allows autonomous dynamic suppression of unknown blockers, as well as beamforming on unknown desired signals--without knowing carrier frequency, angle-of-arrival, and modulation scheme.
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Coming Up: Microwave Week, Wireless Power Transfer, Signal Power

Upcoming MTT-S-sponsored meetings include: the IEEE/MTT-s International Microwave Symposium (IMS, Boston, 2-7 June); Radio Frequency Integrated Circuits (RFIC, Boston, 2-4 June); Microwave Measurements (ARFTG, Boston, 7 June); Wireless Power Transfer (WPTC, London, 18-21 June); Signal and Power Integrity (SPI, Chambéry, France, 18-21 June), and more.
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