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Single-Pixel Scanning Near-Field Imaging Using Sharp Focusing Mikaelian Lens
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An all-dielectric surface focusing Mikaelian lens operating at the X -and Ka-band for the single-pixel scanning microwave and millimeter-wave imaging is presented. The lens prototype with perforation and infill structure is 3-D printed. Results demonstrate that the lens prototype exhibits excellent imaging performance with a subwavelength resolution.
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CMOS SoC Spectrometer Processors for Spaceborne Microwave-to-THz Earth & Planetary Science and Radioastronomy
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This article presents development of CMOS system-on-chip spectrometer processor for Spaceborne Earth Science, Planetary Science and Astronomy. The chip is intended for use in rotational emission spectroscopy observations from microwave to sub-millimeter wavelengths performed from Earth orbiting or deep space exploration spacecraft. The spectrometer processor operates up to 12.8 GS/s to provide up to 6.4 GHz of processing bandwidth with a frequency resolution of 8192 spectral channels and 4-bit analog resolution.
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MMIC IQ Mixer Covers LO/RF from 18 to 65 GHz
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Mini-Circuits’ new SMIQ-653H-D+ MMIC IQ mixer die provides an RF and LO frequency range from 18 to 65 GHz and an IF bandwidth from DC to 20 GHz. This model is usable as a single-sideband upconverter in transmit applications and an image-reject mixer in receiver applications in the mmWave range.
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A 140-22 GHz LNA with 6 dB Min. NF and 80 GHz BW in 130 nm SiGe BiCMOS
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This letter presents an ultra-broadband low-noise amplifier (LNA) with a 3-dB bandwidth of 80 GHz, covering 140–220 GHz. Broadband gain and noise performance are obtained through optimal bias selection, dc coupling, and stagger tuning. Y -factor noise figure (NF) measurement results are presented. A NF of 6.9, 6.1, and 8.2 dB is measured at 150, 180, and 210 GHz. Implemented in IHP 130-nm SiGe BiCMOS process, the LNA has a peak gain of 15.5 dB, while consuming 46-mW dc power.
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Portable EM Device for Steatotic Liver Detection Using Blind Source Separation and Shannon Wavelet Entropy
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This study proposes an EM technique to assist in observation and detection of hepatic steatosis (HS) by measuring EM signals from the right side of the torso where liver is located. The combination of blind source separation and wavelet transform techniques is used for detection. Healthy livers can be differentiated from the steatotic ones based on their higher level of wavelet entropy.
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Hybrid EDA Software Tools for Fast and Advanced EM-Designs
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µWave Wizard™ software products combine the flexibility of 2D/3D FEM with speed and accuracy of Mode Matching for the analysis, synthesis and optimization of passive components, including horn and reflector antennas.
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A Transmission Line Approach for Rough Conductor Surface Impedance Analysis
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A transmission line approach is used to determine the surface impedance of conductors with rough surfaces. Based on the gradient model, the roughness is represented by a gradual transition of the intrinsic impedance. Discretization and successive impedance transformations then directly yield the surface impedance. The field diffusion is fully characterized by a single dimensionless ratio, which enables a comprehensive analysis of the surface impedance regarding its dependency on frequency, conductivity, and roughness.
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Los resultados de las elecciones generales de MTT-S para el Comité Administrativo (AdCom) han sido anunciados. Siete miembros han sido elegidos como miembros del AdCom por un periodo de 3 años a partir del 1 de enero de 2023.
- Jaleel Akhtar
- James Buckwalter
- Terry Cisco
- Jasmin Grosinger
- Amelie Hagelauer
- Dietmar Kissinger
- Imran Medhi
Felicitaciones!
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Anunciados los Resultados de las Elecciones para MTT-S AdCom
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T-MTT Nombra Nueva Editora-Jefe
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El IEEE Transactions on Microwave Theory and Techniques (T-MTT) ha nombrado a la Profesora Almudena Suárez como la nueva editora-jefe.
Prof.ª Suárez es profesora titular de la Universidad de Cantabria, España. Es miembro IEEE Fellow y fue IEEE Distinguished Microwave Lecturer durante el periodo 2006-2008. Ha publicado más de 100 artículos en revistas y ha dado numerosas charlas en conferencias internacionales.
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Domain Decomposition Solver: 12 Million Unknowns – One Server – One Day
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An efficient tool for fast and accurate simulation of electrically huge and complex antenna placement and scattering problems. RCS calculation for ~1,000-wavelength-long fighter aircraft is feasible in a day on a standard server machine.
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Próximos Eventos/Llamados
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MWP 2022 | Evento Virtual | Oct 4-6, 2022
La International Topical Meeting on Microwave Photonics (MWP) es la principal reunión internacional sobre dispositivos fotónicos de microondas, sistemas y aplicaciones. Este año, el MWP 2022 será realizado en formato virtual. El MWP proporciona un foro para la presentación de nuevos desarrollos en esta área de investigación multidiscilinar, que van desde dispositivos hasta pruebas de sistemans en campo. La reunión se lleva a cabo anualmente, y rota entre las Americas, la región Asia-Pacífico y Europa.
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PAST 2022 | Boston, MA | Oct 11-14, 2022
El IEEE International Symposium on Phased Array Systems and Technology (PAST) presentará los avances más recientes en tecnologia de Phased Arrays y presentará una oportunidad única para que los miembros de la comunidad internacional interactúen con colegas en el campo de Sistemas de Tecnologia y Phased Arrays. El simposio se realizará en un formato híbrido y el evento presencial se realizará en The Westin Waltham Boston Waltham, Massachusetts, EUA del 11 a 14 de Octubre 2022.
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Webinar: Streamlined MMIC, RFIC, and RF SiP Design Workflows
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This webinar presents a Cadence AWR Design Environment comprehensive, front-to-back RF-to-mmWave design and EM analysis workflow integrated with Virtuoso for communication, aerospace, and transportation systems.
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Editor-Jefe
Dr. Hjalti Sigmarsson
University of Oklahoma, USA
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Editor Gerente
Dr. Tejinder Singh
Dell Technologies, Canada
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