Results 41 to 50 of about 26,223 (245)

A Wideband High-Efficiency GaN MMIC Power Amplifier for Sub-6-GHz Applications

open access: yesMicromachines, 2022
The monolithic microwave integrated circuit (MMIC) power amplifiers serve an essential and critical role in RF transmit/receive (T/R) modules of phased array radar systems, mobile communication systems and satellite systems.
Liulin Hu   +6 more
doaj   +1 more source

Cryogenic probe station for on-wafer characterization of electrical devices [PDF]

open access: yes, 2012
A probe station, suitable for the electrical characterization of integrated circuits at cryogenic temperatures is presented. The unique design incorporates all moving components inside the cryostat at room temperature, greatly simplifying the design and ...
Cleary, Kieran   +2 more
core   +1 more source

Scalable Cryogenic Read-out Circuit for a Superconducting Nanowire Single-Photon Detector System

open access: yes, 2018
The superconducting nanowire single photon detector (SNSPD) is a leading technology for quantum information science applications using photons, and they are finding increasing uses in photon-starved classical imaging applications.
Cahall, Clinton   +2 more
core   +1 more source

An analysis of microstrip with rectangular and trapezoidal conductor cross sections [PDF]

open access: yes, 1990
The finite-difference time-domain (FDTD) technique is used to analyze boxed microstrip with both rectangular and trapezoidal cross sections. It is confirmed that the exact shape of the conductor has a marked effect on the effective permittivity of the ...
McGeehan, JP, Railton, CJ
core   +2 more sources

Life Stage‐Specific Genetic Diversity and Landscape Characteristics Collectively Influence Genetic Recovery in Pometia pinnata Population 生活史阶段特异的遗传多样性与景观特征对番龙眼种群遗传恢复的协同影响

open access: yesIntegrative Conservation, EarlyView.
Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee   +5 more
wiley   +1 more source

Effect of Feed Substrate Thickness on the Bandwidth and Radiation Characteristics of an Aperture-Coupled Microstrip Antenna with a High Permittivity Feed Substrate [PDF]

open access: yesJournal of the Korean Institute of Electromagnetic Engineering and Science, 2018
The impedance bandwidth and radiation characteristics of an aperture-coupled microstrip line-fed patch antenna (ACMPA) with a high permittivity (ɛr = 10) feed substrate suitable for integration with a monolithic microwave integrated circuit (MMIC) are ...
Jae-Hyun Kim, Boo-Gyoun Kim
doaj   +1 more source

Convective Organization in African Easterly Waves Observed During the NAMMA and CPEX‐CV Field Campaigns

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Fundamental questions remain about where and when convection will occur within African easterly waves. In this study, we aim to better understand the dynamical processes that govern moist convective organization at the meso‐alpha scale in tropical easterly waves using NASA airborne field campaigns and satellite observations.
D. Colón‐Burgos, M. M. Bell
wiley   +1 more source

Interaction of Active MMIC with Package/Housing -Theory, Analysis and Measurement

open access: yesAdvanced Electromagnetics, 2014
This paper presents enclosure effect comprehensive by 3D Electromagnetic modeling, simulation and measurement of active MMIC with Package/housing.
A. Sarvaiya, S. Gupta, D. Ghodgaonkar
doaj   +1 more source

A CRDNet‐Based Watermarking Algorithm for Fused Visible–Infrared Images

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
CRDnet includes encoders and decoders based on residual and dense structures, a fusion network robust to 12 visible and infrared image fusion algorithms, and predictors for predicting watermarked infrared images. The encoder and decoder incorporate preprocessing steps, attention mechanisms, and activation functions suitable for infrared images.
Yu Bai   +4 more
wiley   +1 more source

A 2.5 mW D‐Band Broadband Simultaneous Noise‐ and Input‐Matched InP LNA

open access: yesElectronics Letters, Volume 62, Issue 1, January/December 2026.
This work presents a D‐band, ultra‐low‐power, broadband two‐stage low‐noise amplifier (LNA) implemented in a 250‐nm InP DHBT process. Using a simultaneous noise and input matching technique with a gain‐boosted feedback network, the LNA achieves 6.2 dB noise figure and 27 dB gain from 130 to 155 GHz while consuming only 2.5 mW.
Sehoon Park   +5 more
wiley   +1 more source

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