УДК 371.3

Physics tRANIng with information technology

T.J. Zabavnikova

Tambov state technical university, Tambov

Key words and phrases: antenna arrays, backward wave, the method of exposure, method of training

Abstract: Describes the content and methods used in the learning process, with practical training in the discipline "Physics"

List of symbols: AА- antenna arrays; BW - backward wave

One of the base disciplines of the program of training of students of engineering specialities of a radio engineering profile is the discipline «Physics». Her chapter "Electromagnetic field" has a number of features of teaching, due to saturation by complex specific formulations and use of difficult for perception of a mathematical apparatus of the theory of a field.

Basis of engineering calculations of aerials of all types is the theory of antenna arrays (АA). Its qualitative mastering is an indispensable condition for successful studying of discipline. At the same time it traditionally causes some difficulty for students because of complexity of evident representation of interaction in space of electromagnetic fields from set of separate radiators.

The author apply the following methods of training to increase the efficiency of teaching of discipline: an education method (a base method of educational process) and influence methods - verbal methods (the story, conversation, lecture), evident methods (demonstrations, illustrations), practical methods (exercise).

Education method is the major component of the general process of education of the students, just representing a lever putting in action its external and internal resources. As practice shows, an education method is the most alternative version of the component of teaching and thereof this process is closely connected with the corresponding purposes of process of education. We understand methods of influence as ways of the interconnected activity of the teacher and students with the primary purpose of formation of skills means of programs in mathematical environments.

The main appointment of such a «various system» consists in that it allows to influence the students fully enough. It creates an internal stimulus of interest and inquisitiveness of students and raises their practical activity [1, p. 175].

The quality of such an educational process manages to be raised considerably, applying the training programs of calculation of antenna arrays that allow you to visualize the most interaction in the space of electromagnetic fields from a variety of individual emitters. On a practical training authors has tested some programs of mathematical environments, such as Matlab, MathCAD, C ++, Borland Delphi, HFSS, MMANA-GAL [2, 3].

These programs help students not only to accelerate the development of algorithm of calculation, but also to understand physical essence of mutual influence of design data of the aerial against each other and on its radiation pattern (RP). Thus the important role is played by the form of record of mathematical expressions in the program, namely its affinity to usual mathematical symbols. Besides, the fast reference to schedules is essential for tracking the influence on the ultimate result of calculations of any changes of values of variables in mathematical expressions.

To the greatest degree to these requirements only the mathematical MathCAD environment satisfies.

As an example of creation of the curriculum of this environment, we will consider the program of calculation linear of space-regular antenna array (АA) [4].

According to rules of record of programs in mathematical MathCAD environment, the description of variables (drawing 1), that is design data AA should be made firstly: quantity of radiators, distance between them, their mutual arrangements, a difference of phases of electromagnetic waves raised in radiators and their amplitude.

Drawing 1 Rectilinear homogeneous a linearly-phase antenna lattice

The scheme shows that record of variables is made by the usual mathematical symbols or expressions that simplifies the process of comparison of the text of the program with the lecture material. In the text of record can be not only the graphic representation АA explaining its design features, but also the text description of set variables.

The curriculum presented above and the methods applied in educational process, were used by the authors at carrying out of a practical training within several years. Thanks to it, it was possible to reduce time for studying of the difficult theory for perception АA to 8 class periods, including two lectures, one practical and one laboratory research.

The literature.

1. Levina, M.M. The technologies of a professional pedagogical educational studies. The training aids for the students of the highest pedagogical Institutions. - М: Publishing centre "Academy", 2001. - P. 172.

2. Kozhevnikov V. L, Stepanenko I.T., Starchenko S.I. The calculation of diagrammes of an orientation of antenna systems on the computer. - Tambov: TVVAIU, 2003.

3. Goncharenko I.V.Computer modelling of aerials. - Moscow: the publishing enterprise the Radio software, magazine "Radio", 2002.

4. Starchenko S.I., Jarushkin M. M, Halimov N.R., Safonov A.V. The microwave devices and aerials. The manual on a practical training. - Tambov: ТVAII, 2004.