Adjustable polarization conversion device for FSS-range

Abstract

Every year the need for the use of polarizing devices in modern telecommunications systems increases. Polarization signal processing used in satellite [1, 2], telecommunication information processing systems 5G [3-5] and OFDM systems [6-8] is also becoming widespread. Such devices are polarizers that have different designs, but they have one common function - the transformation of the types of polarization [9]. The simplest and most popular are rectangular waveguides containing diaphragms and pins as reactive inhomogeneities [10-13], which are widely used in the Ku range, ie for satellite communication. In general, the Ku band can be divided into three subbands: 10.7-11.7 GHz; 11.7-12.5 GHz; 12.5-12.8 GHz, but in this paper the results for the whole band will be presented, without division into subbands. The polarizer contains reactive elements - diaphragms, which act as a reflective element for further coordination [14- 16]. However, if the disadvantage of a polarizer with diaphragms only is that there is no further adjustment of the characteristics depending on the needs before use, the characteristics are static after manufacture, this is why we should still use the pins that help us with this dilemma. Reactive elements are also used in various waveguide filters [17-19]