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Nadeem, Iram, Alibakhshikenari, Mohammad, Babaeian, Fatemeh, Althuwayb, Ayman Abdulhadi, Virdee, Bal Singh, Azpilicueta, Leyre, Khan, Salahuddin, Huynen, Isabelle, Falcone, Francisco, Denidni, Tayeb A. and Limiti, Ernesto (2021) A comprehensive survey on "circular polarized antennas" for existing and emerging wireless communication technologies. Journal of Physics D: Applied Physics, 55 (3). pp. 1-20. ISSN 0022-3727
Circular polarized (CP) antennas are well suited for long-distance transmission attainment. In order to be adaptable for beyond 5G communication, a detailed and systematic investigation of their important conventional features is required for expected enhancements. The existing designs employing millimeter wave, microwave, and ultra-wideband frequencies form the elementary platform for future studies. The 3.4 to 3.8 GHz frequency band has been identified as a worthy candidate for 5G communications because of spectrum availability. This band comes under ultra-wideband frequencies (3.1 to 10.6 GHz). In this survey, a review of CP antennas in the selected areas to improve the understanding of early-stage researchers specially experienced antenna designers has presented for the first time as best of our knowledge. Design implementations involving size, axial ratio, efficiency, and gain improvements are covered in detail. Besides that, various design approaches to realize CP antennas including (i) printed CP antennas based on parasitic or slotted elements, (ii) dielectric resonator CP antennas, (iii) reconfigurable CP antennas, (iv) substrate integrated waveguide (SIW) CP antennas, (v) fractal CP antennas, (vi) hybrid techniques CP antennas, and (vii) 3-D printing CP antennas with single and multiple feeding structures have investigated and analyzed. The aim of this work is to provide necessary guidance for the selection of CP antenna geometries in terms of the required dimensions, available bandwidth, gain, and useful materials for the integration and realization in future communication systems.
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.
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Available under License Creative Commons Attribution 4.0.
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