The recent implementation of the fourth fundamental electric circuit element, the memristor, opened new vistas in many fields of engineering applications. In this paper, we explore several RF/microwave passive circuits that might benefit from the memristor salient characteristics. We consider a power divider, coupled resonator bandpass filters, and a low-reflection quasi-Gaussian lowpass filter...

Due to decreasing dimensions and increasing signalfrequencies, the study of on-chip parasitic effects has become of basic importance. In order to accurately predict the behavior of a VLSI design, it is nowadays necessary to use tools capable of performing detailed field-calculations. A primary requirement for such computations is that the domain is decomposed into a mesh. This paper describes t...

Continued research into the development of III–V high-electron mobility transistors (HEMTs), specifically the minimization of the device gate length, has yielded the fastest performance reported for any three terminal devices to date. In addition, more recent research has begun to focus on reducing the parasitic device elements such as access resistance and gate fringing capacitance, which beco...

Power electronic converters represent a pillar of modern power systems, especially since generation from renewable energy sources, such as photovoltaics, have been introduced. One their main characteristics consists the high flexibility in converting different voltage levels and waveforms. As for all conversion devices, they are subjected to unavoidable losses introduced by non-ideal components...

background: organ transplant recipients can experience serious diseases from infections due to emerging and reemerging parasitic infections. this study was carried out to evaluate the prevalence of intestinal parasites among renal transplant re-cipients of iran. methods: this cross-sectional study was conducted from june 2003 to august 2004 on renal transplant recipients in iran. a total of 706...