| 摘要 |
<p>The invention relates to radio technology and can be used for developing compact antenna assemblies for various uses. Said invention makes it possible to considerably increase the effective height of the antenna and to develop a directional aerial assembly having the dimensions which are less than quarter of wave length and oriented in the propagation direction of radiated and absorbed waves. The inventive compact antenna assembly comprises an oscillatory circuit consisting of a reactive component (8) and an inductance coil. Said reactive component (8) is embodied in the form of a condenser provided with a pair of metallic plates (11). A space between the plates is filled with a material (9) containing particles (10) of conducting material separated by a dielectric filling material. The distance between the plates (11) is chosen such that it is less than μ/4, where μ is a wave length of actuating signals The conducting material is selected with respect to a formula (φς2εν/x¿o?)* 10?-11¿≥1, (1/ςφ)1010>>ε, where φ is the actuating signal frequency, ς is the electrical resistivety of conducting material (Ohm*m), ε,ν are respectively the relative electrical and magnetic conductivity of the medium, x¿o? is a minimal dimension of the cross section of a particle of conducting material and oriented perpendicularly to the actuating electric-field vector.</p> |
