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Antennas with rotational symmetry - flat and volume self-complementary antennas, consisting of several metallic and slot radiators of identical shapes and dimensions, are considered. Methods of calculating mutual capacitances between individual radiators or groups of radiators, based on conformal transformations and reduction of three-dimensional problems… (More)
On the basis of phenomenological model of the orthopositronium annihilation 'isotope anomaly' in gaseous neon (lifetime spectra, positrons source 22 Na) the realistic estimation of an additinal mode (∼0.2%) of the orthopositronium annihilation is received.
The compensation method permitting to reduce irradiation of the user's body and to create a weak field area (a dark spot) in the antenna near region for an operation in a wide frequency band is considered.
Expansion of Standard Model for the quantitative description of the or-thopositronium lifetime anomalies (from QED to supersymmetric QED/SQED) allows to formulate experimental tests of supervision of additional realization of the supersymmetry in final state of the positron beta-decay of the nuclei such as 22 Na, 68 Ga (∆J π = 1 +). The expermentum crucis… (More)
Variants of volume self-complementary antennas (conic, parabolic et al.) are considered. Method of their analysis is described. Electrical characteristics depending on frequency are calculated and measured in models. Properties of different volume antennas are compared with each other and with properties of flat self-complementary antennas. It is shown that… (More)
The calculation method of electrical characteristics of the flat transparent antenna with metal triangle in the base is developed. The method is based on the solution of the integral equation for the current along the transparent conductive film. Ways of such antennas optimization are sown.
Compensation structures with one and two flat reflectors are suggested and analyzed.
The feasibility and usefulness of the transparent antenna built as a thin film, placed on a glass substrate and excited by a flat metal triangle, whose base is connected to the film base, which width is equal to its length, are confirmed experimentally. It is shown that the efficiency of such antenna is comparable with the monopole efficiency.
Antenna consisting of a metal and a slot radiator, whose characteristics are similar to those of volume self-complementary antennas, is considered. It is shown that the placement of the antenna on the sides of a lying pyramid (instead of a surface of rotation) permits to simplify its design. The method of its analysis is described. The results of… (More)
Reduction of three-dimensional conical problem to two-dimensional (cylindrical, flat) has played a big role in the development of electromagnetic theory and its use in antenna technology. A similar result can be obtained by reducing the parabolic problem to the flat one. In this paper the relations between the coordinates of the two systems are derived, and… (More)