A Meander Line Integrated Rectangular Tri‐Band Antenna for 5G Sub‐6GHz Applications

ABSTRACT A meander line integrated rectangular tri‐band microstrip antenna is proposed for 5G communication applications. The antenna is made of FR‐4 material as the dielectric medium, and the optimized antenna dimensions are 0.22λ L × 0.29λ L × 0.012λ L . The antenna operates at cental frequencies of 2.31, 3.75, and 5.52 GHz, with peak gains of 3.17, 2.22, and 2.69dBi, respectively. The −10 dB bandwidths are of 80 MHz (2.27–2.35 GHz), 810 MHz (3.39–4.20 GHz), and 580 Hz (5.17–5.75 GHz), with relative bandwidths of 3.5%, 21.3%, and 10.6%, respectively. The measured results are in good agreement with the simulated ones, which verifies the effectiveness of the antenna design. The far‐field radiation are stable, guaranteeing good performance in the tri‐band range.