MODELING AND ANALYSIS OF EFFECTIVE ELECTROMAGNETIC BI-ANISOTROPIC/BI-ISOTROPIC PARAMETERS OF CAPILLARY SYSTEMS OF ELECTRICAL CONDUCTIVITY OF AGRICULTURAL SOILS AS BIOOBJECTS
Keywords:
modeling, analysis, electromagnetic waves, millimeter range, bi-isotropic, bianisotropic, parameters, capillary systems, electrical conductivity, bioobjects, model, analysis, electrical conductivity, parameters, capillary system, agricultural soil, low-frequency resonances, cylinder, circular cross-section, screw line, field information machine, receiving and transmitting deviceAbstract
The models of capillary systems of electrical conductivity of agricultural soils as bioobjects with the effect of bi-anisotropic at the millimeter range of electromagnetic waves is proposed. The analysis of the electromagnetic effective bi-anisotropic/bi-isotropic parameters of mentioned objects is made for the coefficients of reflection and transmission. It gives the possibility to know the state and reaction of these objects on polarized electromagnetic emission. Transmission devices of field information machines for the study of agricultural soils which determine their effective electromagnetic parameters, in particular, the capillary system, are considered. The problem of the diffraction of а plane wave, which normally falls on an empty anisotropic cylinder with а small electric radius and ideal conductivity, which exists in it along the helical lines, forming а small angle with the axis of the cylinder, is studied. The authors have found conditions which give rise to а solid low-frequency resonance and leads to а finite perturbation of the scattering diagram. The main properties of the millimeter electromagnetic waves in a biisotropic media such as agricultural soils are determined with the help of the special new field’s vectors. Such vectors give one the possibility to posses’ two independent systems of ordinary differential equations of the first order. This is like factorization procedure for the vector’s wave field equation. The main properties of the millimeter electromagnetic waves in a “omega-like” medium are discussed as well. One may have the algorithm for the analysis of dates obtained with the help of EHF (extremely high frequency) reflectometers which use waveguides with biisotropic/chiral filling. The results of this work may be used for the refinement and for the improvement of the engineer’s methods of calculation for the receiver set and the transmitter as well, which are used at the field information machines. These machines are useful usually just for the investigation of the electromagnetic parameters of the capillary conductivity systems of the agricultural soils at all stages: projection, design and at the regimes of the real exploitation.
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