This paper describes the design of a Yagi-Uda stacked antenna array for 2.4 GHz applications. Its structure consists 4 layers, layer 1 contains active element, reflector and transmission line feed. Layers 2, 3 have circular patches that function as directors. The implementation "D" shaped patch on element is inserted, where simulation results show proposed can achieve bandwidth much wider than ...

In this paper, a closed square ring resonator loaded 2-port Multi Input Output (MIMO) is proposed for dual-band applications in the S and C band. The presented antenna model designed by loading it FR-4 substrate with feedline of 50Ω SRR enhancement isolation radiation pattern. Ansoft HFSS used to obtain simulated parameters frequency ranges 2.2-2.5 6-6.3GHz. Measurements confirm characteristics...

Abstract This research proposes a unique design that makes use of defective microstrip topology to decrease electromagnetic coupling between parallel high speed interconnects. The performance this new construction with defects is evaluated using near-end crosstalk and far-end crosstalk. Serpentine shaped defected introduced in one interconnects its also compared the existing structure. In resea...

In this paper the different dielectric covers affects on square patch antenna is investigated and compared their performance. The designed at 2.4GHz with arlon diclad 880 substrate. constant of substrate 2.2 thickness 1.6mm. or superstrates are used whose constants 2.2, 3.2, 4.8 10.2. simulated using Ansoft electromagnetic simulator such as HFSS. effect cover height (H) =0 antenna, result perfo...

Sabit mıknatıslı senkron motorlar (SMSM) birçok özelliği bakımından değerlendirildiğinde literatürde avantajlı motor türlerinden birisidir. Rotorunda bulunan yüksek güç yoğunluğundaki mıknatıslarla bu diğer fırçalı motorlara göre avantaj sağlayan motorlardır. Ancak, karakteristik yapısından dolayı oluşan ve motorun çıkış momentini olumsuz etkileyen vuruntu momentine sahiptirler. Radyal akılı sü...

Diesel engine has been used as the primary mover in vehicles for a long time. It is known that around 25%–30% of fuel energy wasted exhaust gas from diesel engines. In this study, turbine power generation system including 1.8 kW 60,000 r/min high-speed permanent magnet generator and micro turbine, which coupled to designed modeled investigate its potential recovering engine. Computational model...

Power module design is needed for high system performance and reliability, especially in terms of high efficiency and high power density. Low parasitic impedance and thermal management is desired for the lower power loss and device stress. For power module with high efficiency and improved breakdown voltage, this thesis proposes a novel series-connected power MOSFETs module. Three IRF7832 MOSFE...

In this paper, the microstrip slot antenna is designed for a wireless application with fractal structure having 2.5 - 3.5 GHz coverage and 30% bandwidth. The circular seven triangular slots considered six single rings are added to antenna. As last step, enhancement of matching produced by disk located central part slot. model improves bandwidth, modifies controls current distribution in such wa...

This paper considers a novel compact tri-band microstrip bandpass filter, the design of which employs asymmetric SIRs and DGS for achieving the characteristics of low insertion loss, high selectivity, wider range of bandwidth, and low group delay for 2.5/3.4 GHz (WiMAX) and 4.14–5.32 GHz (UWB) bands. The novel filter design implies the intentional selection of impedance ratio R and the length o...

In RF-MEMS packaging, next to the protection of movable structures, optimization of package electrical performance plays a very important role. In this work, a wafer-level packaging process has been investigated and optimized in order to minimize electrical parasitic effects. The package concept used is based on a wafer-level bonding of a capping silicon substrate with throughsubstrate intercon...