In the last years, computer simulation has reached a significant position in the investigation and development of technical products. Simulation programmes and computer utilization have found application also in the area of electrical devices. At our workplace we have used simulation programmes for many years to investigate transient phenomena mainly at short-circuit current breaking in miniatu...

The paper presents a methodology for simulating the static and dynamic performance of integrated circuits in the presence of electro-thermal interactions on the integrated circuit die. The technique is based on the coupling of a FEM program with a circuit simulator. In difference to other known simulator couplings the time step algorithm is used. Its implementation into simulation tools is desc...

This paper describes the impact of DRAM process on the logic circuit performance of Memory Logic Merged Integrated Circuit and the alternative circuit design technology to o set the performance penalty Extensive circuit and routing simulations have been performed to study the logic circuit performance degradation when the merged chip is implemented on DRAM process Three logic processes m m and ...

An intelligent design method of double screen frequency selective surfaces (FSSs) is addressed in this paper. The employed unit cell is composed of two metallic screens, which are printed on both sides of a substrate. The presented non-trial-and-error approach is investigated based on the separate design of each screen. With the help of some physical intuition and an equivalent circuit model, i...

The envelope simulation method, developed earlier for large signal simulation (time domain, TRAN), is extended to include small signal envelope simulation (AC) and DC Sweep simulation (steady state for a range of carrier frequencies). The model is derived for AM, FM and PM modulation schemes and is demonstrated on a piezoelectric transformer circuit. The analytical derivations of the model were...

This paper presentes a simple floating immittance simulation circuit employing only one differential voltage current conveyor transconductance amplifier (DVCCTA) and two grounded passive components. The proposed floating simulator circuit can realize floating inductor, capacitor or resistor depending on the passive element selection. The equivalent value of the realized simulator can be tuned e...

In this paper, an ultra-low-noise amplifier with frequency band switching capability is designed, simulated and fabricated. The two frequency ranges of this amplifier consist of the 2.4 to 2.5 GHz and 3.1 GHz to 3.15 GHz frequency bands. The designed amplifier has a noise figure of less than 1dB, a minimum gain of 23 dB and a VSWR of less than 2 in the whole frequency band. The design process s...

A new interface circuit for capacitive sensor is presented. This paper presents the design and simulation of soil moisture capacitive sensor interface circuit based on phase differential technique. The circuit has been designed and fabricated using MIMOS’ 0.35μm CMOS technology. Simulation and test results show linear characteristic from 36 – 52 degree phase difference, representing 0 – 100% in...

This paper presents a systematic methodology to develop statistical compact MOS models for advanced VLSI circuit simulation. Process variability in advanced CMOS technologies imposes a serious challenge for computer-aided VLSI circuit design. Therefore, statistical compact model has become indispensable for realistic assessment of the impact of random process variability on advanced VLSI circui...