نتایج جستجو برای: microwave devices
تعداد نتایج: 248492 فیلتر نتایج به سال:
Multiferroic composite materials, consisting of coupled ferromagnetic and piezoelectric phases, are of great importance in the drive towards creating faster, smaller and more energy efficient devices for information and communications technologies. Such devices require thin ferromagnetic films with large magnetostriction and narrow microwave resonance linewidths. Both properties are often degra...
Radar-based remote sensing techniques are typically employed to determine the velocities and positions of targets such as aircraft, ships, and land vehicles. In particular, Xand Kband microwave devices, including oscillators and antennas, have been used to measure the velocity of automobiles and other moving objects in recent years. Microwave devices that are compact, accurate, reliable, and in...
Thermal tissue ablation is an interventional procedure increasingly being used for treatment of diverse medical conditions. Microwave ablation is emerging as an attractive modality for thermal therapy of large soft tissue targets in short periods of time, making it particularly suitable for ablation of hepatic and other tumors. Theoretical models of the ablation process are a powerful tool for ...
This paper presents a short review of the microwave acoustics area, where exciting material innovations and performance advancements have been made in past decade. The ever-growing demand for more sophisticated passive signal processing functions on-chip has fueled these developments. As result, acoustic devices maintained leadership mobile applications. By evaluating three fundamental paramete...
This paper presents the characterization of illuminated high-frequency active devices using a time domain physical simulation model. The model is based on Boltztnann’s Transport Equation (BTE), which accurately accounts for carrier transport in microwave and millimeter wave devices with sub-micrometer gate lengths. Illumination effects are accommodated in the model to represent camer density ch...
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