Triple-band antenna for GPS, Sub-6 GHz 5G and WLAN Wireless Applications

A multi-band antenna based on rectangular patch, and split ring resonator shaped structure operates at 1.25 GHz, 3.55 GHz, and 5.28 GHz for GPS, Sub-6 GHz 5G and WLAN applications, respectively is proposed. The proposed antenna offers return loss of -21.07 dB, -22.44 dB, and -18.60 dB at the resonance with impedance bandwidth of 0.03 GHz, 0.05 GHz, and 0.29 GHz and VSWR of 1.19, 1.16, and 1.27 for desired applications bands, respectively. The proposed antenna offers a gain of 2.97 dBi, 5.36 dBi, and 4.87 dBi with a radiation efficiency of 42%, 94.7%, and 96.3% for intended bands, respectively. The proposed antenna is fed by a coaxial probe and physical dimension of 100×100×3.175 mm
³
size. The antenna is designed on Rogers AD255C substrate. Characteristic mode analysis is carried out to identify radiating modes based on modal significance, characteristic angle, and eigenvalue. The reported antenna offers a linear polarized radiation patterns, simple structure, appropriate gain, and radiation efficiency making it suitable for desired applications for 5G enabled devices.