Radiation of Monopole Microwave Plasma Antenna
Zhivko Kiss’ovski1, Vasil Vachkov2
1Zhivko Kiss’ovski, Department Radiophysics and Electronics, Sofia University, Sofia, Bulgaria.
2Vasil Vachkov, Departmen Radiophysics and Electronics, Sofia University/ , Sofia, Bulgaria
Manuscript received on 13 June 2016 | Revised Manuscript received on 20 June 2016 | Manuscript Published on 30 June 2016 | PP: 10-12 | Volume-5 Issue-5, June 2016 | Retrieval Number: E4585065516/16©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The radiation of cylindrical plasma monopole at low gas pressure is theoretically investigated by applying the theory for dielectric resonator antenna (DRA). The plasma column is placed in a thin dielectric tube with a longitudinal length equal to half wavelength of the surface wave which sustains the discharge. The resonance wavelength of the TM011 mode at frequency 2.45 GHz is obtained by dielectric waveguide model (DWM) in which dielectric is replaced by plasma medium. The expression for electric field in far-field zone of this plasma monopole is derived and the result shows that its radiation pattern is similar to that of metal dipole antenna. The radiated field strength of plasma monopole is greater than that of metal antenna with the same electrical conductivity and dimensions.
Keywords: Plasma Antenna, Dielectric Resonator Antenna, Plasma, Surface Waves
Scope of the Article: Microwave Antenna