Dual-Polarization Wideband Sub-6 GHz Suspended Patch Antenna for 5G Base Station

Date

2020-07-01

Author

Ciydem, Mehmet
Miran, Emre A.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This letter presents a simple, compact, low-cost, low-profile, dual-polarization, suspended patch antenna design to operate in 3.3-3.8 GHz band for 5G base stations. The proposed antenna comprises a main radiating patch, a secondary parasitic patch, modified L-probe feeds, and a vertical metal wall. The main patch is capacitively driven by two feeds for dual (+/- 45 degrees slant) polarization. The vertical metal wall is used to increase the port isolation. The parasitic patch also helps further improvement of input impedance matching (|S-11|, |S-22|) and port isolation (|S-21|). The prototyped antenna has |S-11|, |S-22| < -10 dB and |S-11|, |S-22| < -15 dB impedance bandwidth of 45% and 36%, respectively. Port isolation is |S-21| < -30 dB in the desired operating band. Stable and symmetric radiation patterns with half-power beamwidths of 56 degrees-65 degrees are obtained in E-/-H-planes. The gain of the antenna is 8.95 +/- 0.25 dBi. Numerical calculations and experimental results are reported and discussed.

Subject Keywords

Electrical and Electronic Engineering

URI

https://hdl.handle.net/11511/64881

Journal

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS

DOI

https://doi.org/10.1109/lawp.2020.2991967

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

M. Ciydem and E. A. Miran, “Dual-Polarization Wideband Sub-6 GHz Suspended Patch Antenna for 5G Base Station,” IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, pp. 1142–1146, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64881.