MIMO ANTENNA SYSTEM WITH DUAL POLARIZATION UTILIZING CIRCULAR RING APERTURE FOR 5G APPLICATIONS
Keywords:
Antenna, ECC, Dual-Polarization, sub-6, 5G, MIMO, 3.5 GHz, FR-4.Abstract
This study presents a dual-polarized MIMO antenna system tailored for 5G networks operating at frequency 3.5 GHz. The design incorporates a circular ring aperture antenna, where orthogonal modes are excited through a 50-ohm dual-port microstrip feed line. A non-contact feed mechanism improves port isolation at the 3.5 GHz operating frequency. The 2x2 MIMO configuration, featuring 8 ports, is fabricated on low-price FR4 dielectric material with a compact footprint of 52 × 52 × 1.6 mm³. The antenna illustrates high efficiency and favorable gain characteristics. Additionally, the envelope correlation coefficient (ECC) and channel capacity loss (CCL) remain low across the target frequency band, making the system well-suited for MIMO and diversity applications.
References
Zahid MN, Gaofeng Z, Kiani SH, Rafique U, Abbas SM, Alibakhshikenari M, Dalarsson M. H-shaped eight-element dual-band MIMO antenna for sub-6 GHz 5G smartphone applications. IEEE Access. 2022 Jul 11; 10:85619-29.
Bellary, Anudeep, Krishnamoorthy Kandasamy, and Patnam Hanumantha Rao. "Analysis of Wave Propagation Models with Radio Network Planning using Dual Polarized MIMO Antenna for 5G Base Station Applications." IEEE Access (2022).
