Self-oriented CoFe2O4composites for non-reciprocal microwave components

The effectiveness of group training for reciprocal behavior analysis on the self-efficacy among school counselors

The aim of the present research was to assess the effectiveness of group training in transactional analysis on the self-efficacy Dimensions of the school counselors. The research method was semi-empirical with pretest- posttest which was held on the control group. Research statistic population included School` s counselors in Bojnourd city in the year 2011. In the first step 77 people of these ...

Microwave Scattering Models for Cylindrical Vegetation Components

This work is intended to investigate the accuracy of modelling simple cylindrical vegetation structures for microwave remote sensing applications. Plane wave scattering by dielectric cylinders of finite length and circular cross section is examined. Cylinders with a radius that varies linearly along the cylinder length — hereafter referred to as tapered cylinders — are also considered. Exact ex...

Reciprocal vector theory for diffractive self-imaging.

A reciprocal vector theory for analysis of the Talbot effect of periodic objects is proposed. Using this method we deduce a general condition for determining the Talbot distance. Talbot distances of some typical arrays (a rectangular array, a centered-square array, and a hexagonal array) are derived from this condition. Further, the fractional Talbot effect of a one-dimensional grating, a squar...

Self-organizing multivariate constrained meta-modeling technique for passive microwave and RF components

A self-organizing algorithm is developed for multivariate constrained modeling of general passive components. The algorithm builds compact, analytical circuit models and represents the scattering parameters of the passive components as a function of its geometrical parameters and as a function of the frequency. Multiple constraints, or relationships between the geometrical parameters, may exist...

Broadband Microwave Lithographic 3D Components