This paper proposes a methodology to develop linear low-order model of multi-terminal direct-current (MTDC) system connected practically-sized offshore wind farm systems. The method individually linearizes the systems and subsequently performs order reduction (MOR) using iterative rational Krylov algorithm (IRKA). is, therefore, modular approach expandable any number connections. On other hand,...

A novel ring structure is proposed for double negative NIMs at visible light spectrum with high FOM (e.g. about 11 at a wavelength of 
583 nm) and low loss. Besides the effective medium theory, an equivalent circuit model is also given to explain physically why our novel structure can give double negative behavior with low loss. Adapted from the original ring structure, two other types of struc...

The outstanding pyroelectric coefficient p of Mn:PIN–PMN–PT makes it an interesting material for application in infrared detectors. In comparison to the standard lithium tantalate (LT), is higher by a factor 4. On other hand, dielectric permittivity εp about one order magnitude compared LT. Due permittivity, resulting Figures Merit (FOM) show highest performance advantages lower frequency range...

In this paper, we demonstrate a novel salinity sensor based on Tamm-plasmon-polariton (TPP), comprising different shapes of Bragg reflector (ordinary, texturing, and sawtooth) metallic layer. The finite element method is used to study the considered structure sensing performance by using COMSOL multiphysics simulation procedure. Here, effect surface morphology sensitivity; firstly, in case one-...

In this paper, we demonstrate high-performance lateral AlGaN/GaN Schottky barrier diodes (SBD) on Si substrate with a recessed-anode structure. The optimized rapid etch process provides results in improving etching quality 0.26-nm roughness of the anode recessed surface. By using high work function metal Pt as electrode, low turn-on voltage 0.71 V is obtained uniformity ±0.023 for 40 devices. S...

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Although the power conversion efficiencies (PCEs) of bulk heterojunction (BHJ) organic solar cells (OSCs) continue increasing toward 20% milestone, important factors for industrial application are mostly neglected, such as photostability and cost potential. Single-component OSCs (SCOSCs) employing materials with chemically bonded donor acceptor moieties successfully overcome immiscibility betwe...

The multiple-divide technique, using the multi-ratio frequency divider, has a possibility to improve FoM of VCO. This paper proposes a design optimization of LC-VCO using the multiple-divide technique. In the simulated results using 90-nm CMOS model parameters, the optimum frequency range, achieving better than −187.0 dBc/Hz of FoM, can be extended from 6.5–12.5 GHz to 1.5–12.5 GHz. The propose...

1 Helsinki University of Technology, Association Euratom – Tekes, Espoo, Finland 2 EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, UK; 3 EURATOM/IST Fusion Association, Centro de Fusão Nuclear, Lisboa Portugal 4 Associazione Euratom/ENEA/CNR sulla Fusione, Frascati, Rome, Italy 5 Alfven Laboratory, Association EURATOM-VR, Stockholm, Sweden 6 INF, Uppsala University, EURATOM/V...

Abstract This article analyzes the direct current and small-signal parameters of MgZnO/ZnO (MZO) HEMT for microwave application. Further, impact MgO spacer layer on performance such as transconductance ( g m ), cut-off frequency f T maximum oscillation max ) Johnson’s figures merit (J-FOM) MZO has been analyzed. with results in enhanced values two-dimensional electron gas (2DEG) density 7.2 × 1...