Abstract
A reconfigurable wideband circularly polarized plasma helical antenna is designed for wireless applications in the frequency band from 6 to 12 GHz. The proposed antenna structure is suitable to be integrated with electronic circuits for different applications. An optimization for different parameters of the antenna for wideband end-fire radiation characteristics is investigated. The antenna has matching impedance bandwidth of 48% with maximum gain of 8.5 dBi and wideband circular polarization of 31%. The antenna gain and bandwidth for different numbers of helix turns are increased with varying the plasma frequency. An improvement in the antenna gain and radiation efficiency is achieved via loading the antenna with dielectric lenses of different shapes. The end-fire directional gain is improved to 11.5 dBi for hemispherical lens and 10.5 dBi for quarter spherical lens with HPBW of 40°.
Keywords
Plasma Helical antenna Reconfigurable Circular polarizationNotes
References
- 1.Constantine A. Balanis, Antenna theory: analysis and design, 3rd edition, A John Wiley & Sons, Inc, New Jersey, USA, 2005Google Scholar
- 2.Zainud-Deen SH, Salem DM, Ibrahem SM, Motaafy HA (2003) Octafilar helix antennas for mobile satellite handsets. IEEE Antennas and propagation Society International Symposium 4:320–323Google Scholar
- 3.Hui HT, Chan KY, Yung EKN (Jun. 2003) The low-profile hemispherical helical antenna with circular polarization radiation over a wide angular range. IEEE Trans Antennas Propag 51(6):1415–1418CrossRefGoogle Scholar
- 4.Ibambe MG, Letestu Y, Sharaiha A (2007) Compact printed quadrifilar helical antenna. Electron Lett 43(13):697–698CrossRefGoogle Scholar
- 5.Chua C, Aditya S, Shen Z (Dec. 2010) Planar helix with straight-edge connections in the presence of multilayer dielectric substrates. IEEE Trans Electron Devices 57(12):3451–3459CrossRefGoogle Scholar
- 6.Wu XH, Kishk AA (2010) Analysis and design of substrate integrated waveguide using efficient 2D hybrid method. Morgan and Claypool PublishersGoogle Scholar
- 7.Chen Z, Shen Z (October 2015) Planar helical antenna of circular polarization. IEEE Trans Antennas Propag 63(10):4315–4323CrossRefGoogle Scholar
- 8.T. Anderson, Plasma antennas, Artech House, Norwood, England, 2011Google Scholar
- 9.Kumar R, Bora D (March 2010) A reconfigurable plasma antenna. J Appl Phys 107(5):533–542CrossRefGoogle Scholar
- 10.Etesami F, Mohajeri F (May 2011) On radiation characteristic of a plasma triangular monopole antenna. In: 19th Iranian conference on electrical engineering, TehranGoogle Scholar
- 11.X. Wu1, J. Shi1, Z. Chen, and B. Xu, A new plasma antenna of beam-forming. Progress in Electromagnetics Research (PIER), vol. 126, pp. 539–553, April 2012CrossRefGoogle Scholar
- 12.Zainud-Deen SH, Malhat HA, Badawy MM, Awadalla KH (Apr 2014) Circularly polarized plasma curl antenna for 2.45 ghz portable RFID reader. Plasmonics 9(2):1063–1069CrossRefGoogle Scholar
- 13.Zainud-Deen SH, Malhat HA, Gaber SM, Ibrahim M, Awadalla KH (Sept. 2013) Plasma reflectarray. Plasmonics 8(3):1469–1475CrossRefGoogle Scholar
- 14.Zainud-Deen SH, Malhat HA, Gaber SM, Awadalla KH (2014) Beam steering plasma reflectarray/ transmitarray antennas. Plasmonics 8(4):1–7Google Scholar
- 15.S.M. Gaber, N.A. Elshalaby, and S.H. Zainud-Deen, Plasma planar helical antenna, National Radio Science Conference, (NRSC 2019), Port Saied, Egypt, April 2019Google Scholar
- 16.Hend A. Malhat, S.H. Zainud-Deen, and K. H. Awadalla, Radio frequency identification antennas: design and applications, LAP LAMBRET Academic Publishing, AV Akademikerverlag GmbH & Co., Deutschland/Germany, 2012Google Scholar