Open AccessAdvanced MF antennas for underground communications
Author(s) -
D.V. Fedosov,
A. V. Kolesnikov,
А. В. Николаев
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1862/1/012002
Subject(s) - standing wave ratio , reflection coefficient , antenna (radio) , acoustics , electrical impedance , directional antenna , reflection (computer programming) , computer science , range (aeronautics) , slot antenna , electronic engineering , electrical engineering , physics , telecommunications , engineering , microstrip antenna , aerospace engineering , programming language
The paper considers the features of underground radio communication at medium frequency (MF) range. The perspective and most effective antenna solutions at MF range are presented. The characteristics of the antennas are given: the reflection coefficient, the dependence of the input impedance. Antennas are matched with voltage standing wave ratio (VSWR) less than 1.2. Attention is focused on some features of the operation of these antennas. The results of comparative tests of antennas are presented.