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This study focuses on modeling collapsed mode operation of CMUT arrays, and obtaining a small signal lumped element model for collapsed mode operation. Having the large signal model for single CMUT from previous studies, the mutual radiation impedance is presented for the collapsed mode, and a large signal model for a CMUT array is obtained for simulating the operation in both uncollapsed and collapsed...
Problems on average electrical impedance are tackled for human body, when taking into account reflection influences of conducting medium in vicinity of human body. A cylindrical model of human body was proposed to analyze electrical properties of tissues and organs, which have certain information facilitating to determination of healthy state of human body. Function relationship was discussed between...
Current mode (CM) scheme provides suitable alternative for the high speed on-chip interconnect signaling. This paper presents a energy-delay optimization methodology for the current-mode (CM) signaling scheme. Optimization for the CM circuits for on-chip interconnects requires a joint optimization of driver and receiver device sizes, as their parameters which affect the energy-delay performance depend...
A novel methodology for accurate and efficient static timing analysis is presented in this paper. The methodology is based on finding a frequency domain model for the gates which allows uniform treatment of the gates and interconnects. It is shown that despite the highly nonlinear overall gate model, a frequency domain model of the gate with the model parameters, gate moments, as functions of the...
Microstrip transmission lines have an important rule in designing microwave integrated circuits. In this paper, we will illustrate modeling of unshielded microstrip lines using finite element method (FEM). We specifically determine the capacitance per unit length, inductance per unit length, and characteristic impedance of unshielded suspended and inverted substrate microstrip lines. We compare our...
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