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The paper brings results of numerical studies of four different concepts of filtering antennas: the dipole array with serial feeding, the patch array fed by the Substrate Integrated Waveguide (SIW) resonators, the low-pass filter antenna with the Defected Ground Structure (DGS), and the patch array fed by apertures. Filtering antennas are mutually compared from the viewpoint of frequency response...
In the paper, we describe a concept of an experimental wireless link operating in frequency bands 71 to 76 GHz and 81 to 86 GHz. The link is based on the converter FC1003E/03 produced by Sivers IMA. For the link, a conventional horn antenna and a planar horn antenna were designed. Parameters of the link were measured in indoor environment. The paper brings practical experience with developing the...
In this paper, we present two approaches to the synthesis of a required frequency dependency of gain and reflection coefficient of a dipole antenna array. In the first approach, we assume that the transmission line is included into the antenna array synthesis, and the antenna array is excited in a single point. In the second approach, we do not consider the transmission line in the numerical model,...
In this article, we present a study dealing with the design, optimization, and manufacturing of different versions of a broadband monopole antenna with a convex conical reflector. These antennas are created by a wire monopole that is placed into the axis of a convex conical reflector. The principle of antennas is based on the transformation of the impedance of a coaxial transmission line to the open...
In the paper, the design, simulation, optimization and manufacturing of different versions of an antenna, which transforms the impedance of the coaxial line to the impedance of the open space via the circular waveguide, are presented. The numerical models of the antenna were developed in CST Microwave Studio. Then, the models were optimized to meet specified criteria. The manufacturing of the antennas...
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