Abstract
Nowadays, many scientists are interested in waveguide slot antenna arrays with an ability to electronically control position of the beam using p-i-n diodes [1,2,3]. However, an implementation of such antenna control has a number of difficulties. The fastening of p-i-n diodes to the upper surface of the waveguide is not strong due to large thickness of the surface. In this work, antenna based on a low-profile SIW (substrate integrated waveguide) structure was studied, in which upper and lower surfaces made like metallization deposited on the dielectric. This solution allows making mounting control elements more reliable. Also, the dependence of radiation parameters of antenna for different resistance of switching elements located on emitters was studied. As a part of this investigation, experimental and computer (in ANSYS HFSS) models of antenna array were constructed and two corresponding types of studies were conducted. Radiation patterns were obtained for various options for resistance on slots for the frequency of 10.4 GHz. After comparing these dependencies, an ability to control width and position of the main maximum of radiation pattern, as well as a power level of radiation was confirmed. At the next stage, an experimental study of the control circuit with p-i-n diodes will be carried out. Further studies of the properties of this antenna are planned to be carried out with an increased number of emitters from four to eight. This modification will expand control capabilities of antenna array. Then moving to full-fledged multi-element slot waveguide antenna array based on several connected waveguide sections can be made.
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Daniil, V., Ekaterina, K., Alexander, S., Sergei, B. (2021). Experimental Investigation of Radiation Characteristics of the Controlled Slot Antenna Array. In: Velichko, E., Vinnichenko, M., Kapralova, V., Koucheryavy, Y. (eds) International Youth Conference on Electronics, Telecommunications and Information Technologies. Springer Proceedings in Physics, vol 255. Springer, Cham. https://doi.org/10.1007/978-3-030-58868-7_81
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DOI: https://doi.org/10.1007/978-3-030-58868-7_81
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