Browsing by Subject "CAD"

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Open Access
Attitudes of design students toward computer usage in design
(Springer Netherlands, 2006-01) Pektaş, S. T.; Erkip, F.
The success of efforts to integrate technology with design education is largely affected by the attitudes of students toward technology. This paper presents the findings of a research on the attitudes of design students toward the use of computers in design and its correlates. Computer Aided Design (CAD) tools are the most widely used computer applications in design. An instrument was developed and applied for the first time to relate computer attitude to design field through CAD. Interior architecture undergraduates of Bilkent University participated in the survey. As a result, students' attitudes toward the use of computers in design were found to be positive. A significant gender difference in attitudes toward computers was observed with males having more positive attitudes than females. The results also revealed that students' attitude toward computer usage in design was highly related to their general attitude toward computers, but it was not correlated with their perception of instructors' attitude toward the use of computers in design. © Springer 2006.
Open Access
A novel CAD algorithm for the analysis of printed geometries
(1997) Kınayman, Noyan
An efficient and accurate computer aided design (CAD) software for the electromagnetic simulation of passive microwave components, fabricated in planar stratified media, is developed in this work. The numerical technique employed in this software is based on the spatial-domain method of moments (MoM) in conjunction with the closed-form Green’s functions. Since the computational efficiency is a major issue in CAD softwares, the spatial-domain MoM is significantly improved in this respect with the use of the closed-form Green’s functions and closed-form expressions for the MoM matrix entries. Vertical metalizations in the form of via holes and shorting pins, which are the indispensable parts of the most microwave circuits, are also modeled very efficiently and incorporated into this formulation. The resulting approach is applied to some realistic microwave circuits and planar antennas, with and without vertical metalizations, to validate the formulation. It is also demonstrated that the formulation developed in this work can be efficiently used with an optimization algorithm for design purposes. The results obtained from the formulation proposed in this work are compared to those obtained from a commercial electromagnetic analysis software.
Open Access
A simulation program for efficient analysis of linear circuits
(1996) Sungur, Mustafa
circuit simulation program using generalized asymptotic waveform evaluation technique is introduced. The program analyzes circuits with lumped a.nd distributed components. It computes the moments ci.t a few Irecjuency points and extracts the coefficients of an approximating rational by employing one of t,he two different methods. One of the examined methods is proposed to compare the accuracy of results and the execution times with conventional simulators and sevei’cil examples are demonstrated, indicating that our sirnulcv tor provides a. speed improvement without a significant loss of accuracy.