Improvement of еру incide parameters of electrically small wire antennas

Authors

  • V. V. Ovsyanikov Dnipropetrovsk National University of O. Gonchar, Dnipropetrovsk
  • L. S. Zagorodnya Dnipropetrovsk National University of O. Gonchar, Dnipropetrovsk

DOI:

https://doi.org/10.20535/RADAP.2011.46.116-123

Keywords:

electrically small antenna, matching inductive load, voltage standing waveratio (VSWR, the antenna performance (efficiency), the standard deviation (SD)

Abstract

The results of studying ways to improve the VSWR and efficiency ofelectrically small antennas with dimensions much less resonance with matching inductiveloads that are included directly in the radiating antenna wire schy. Noted, for example, thatthe size of the . -shaped antenna, shortened by half relative to the resonant length, the inclusionof inductive loads at the centers of radiating branches makes it possible to lower the VSWR of approximately 3 orders of magnitude. Under these conditions there is a significantunusial increase in power input connectors for electrically small antenna (about 2 orders ofmagnitude) compared to the power in the same oscillator with no inductive loads, un an alternatingvoltage across the input terminals of the antenna. This phenomenon leads to greatlyincrease the effectiveness of radiation (reception) antenna. The estimation of efficiency ofelectrically small antennas, depending on their electrical length and Joule losses of new elementsin the antenna. Depending on the estimation of the standard deviation VSWR in thesupply feeder truncated - shaped antennas on the SD coordinates include matching inductiveload. It is noted that similar methods of analysis and improvement of the inсide electricalproperties of electrically small antennas can be applied to wire antennas of variousconfigurations, including a microstrip antenna design

Author Biographies

  • V. V. Ovsyanikov, Dnipropetrovsk National University of O. Gonchar, Dnipropetrovsk
    Doc. of Sci. (Technics), Prof.
  • L. S. Zagorodnya, Dnipropetrovsk National University of O. Gonchar, Dnipropetrovsk
    assistant

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Published

2013-07-15

Issue

No. 46 (2011)

Section

Electrodynamics. Microwave devices. Antennas

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How to Cite

“Improvement of еру incide parameters of electrically small wire antennas” (2013) Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (46), pp. 116–123. doi:10.20535/RADAP.2011.46.116-123.

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