Abstract

This paper presents a circular polarization reconfigurable antenna for 5G applications, which is compact in size and has good axial ratio and frequency response. The proposed microstrip antenna is designed on a FR-4 substrate with a relative dielectric constant of 4.3 and has a maximum size of 30 × 30 mm2 with 50 Ω coaxial probe feeding. This design has two PIN diode switches controlling reconfiguration between right hand circular polarization (RHCP) and left hand circular polarization (LHCP). To achieve reconfigurability, a C-slot rectangular patch antenna with truncated corner techniques is employed by cutting off two corners on the radiating patch. The proposed antenna has been simulated using CST microwave studio software: it has 3.35–3.77 GHz and 3.4–3.72 GHz bands for both states of reconfiguration, and each is suitable for 5G applications with a good axial ratio of less than 1.8 dB and good gain of 4.8 dB for both modes of operation.

Highlights

  • A New Polarization-Reconfigurable Antenna for 5G Wireless CommunicationsAl-Yasir, Yasir; Ojaroudi Parchin, Naser; Elfergani, Issa T.; AbdAlhameed, Raed A.; Noras, James M.; Rodriguez, Jonathan; Aljzari, A.; Hammed, W.I. Al-Yasir Y, Ojaroudi Parchin N, Elfergani I et al (2018) A New Polarization-Reconfigurable Antenna for 5G Wireless Communications

  • Many recent books and articles have discussed the use of reconfigurable antennas for “green” flexible RF in 5G applications [1-3]

  • Other researchers have presented designs for 5G applications – for example in [12], an antenna is designed with circular polarization reconfigurability between left hand circular polarization (LHCP) and right hand circular polarization (RHCP), applicable in mobile systems

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Summary

A New Polarization-Reconfigurable Antenna for 5G Wireless Communications

Al-Yasir, Yasir; Ojaroudi Parchin, Naser; Elfergani, Issa T.; AbdAlhameed, Raed A.; Noras, James M.; Rodriguez, Jonathan; Aljzari, A.; Hammed, W.I. Al-Yasir Y, Ojaroudi Parchin N, Elfergani I et al (2018) A New Polarization-Reconfigurable Antenna for 5G Wireless Communications. 9th International Conference on Broadband Communications, Networks, and Systems (Broadnets 2018) Sept 19-20, Faro, Portugal.

Introduction
Antenna Design
Impedance Bandwidth
Radiation Pattern, Axial Ratios and Gains
Comparison with Some Other Existing Structures
Conclusions
Full Text
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