High Gain Microstrip Antenna for Tri-Band 5G Wireless Communications

What is it about?

The next generation of wireless mobile communication is expected to feature capabilities never before achieved. Its performance specifications would include improvements such as higher data rate and lower latency. With today’s increasing applications and demands, spectrum scarcity is a recurring problem. Hence, the usage of frequency bands beyond what is in use today is required in the coming years. Future fifth generation wireless communication networks (5G) are expected to create an impact by offering more varied services and benefits than those provided by 4G. In this work, we proposed a quite small antenna with 3 bands of operation with high gain suitable for 5G Wireless Communications.

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Why is it important?

The proposed antenna is printed on a compact Rogers RT5880 substrate of dimensions 20×16.5×0.508 mm3 with relative permittivity, εr of 2.2 and loss tangent, tan δ of 0.0009. To improve return loss and bandwidth of the proposed antenna, a partial ground plane technique is employed. The proposed antenna operates at 10, 28, and 38 GHz, three of the selected frequencies which are allocated by the International Telecommunication Union (ITU) for 5G mobile communications. To reduce interference between the 5G system and other systems in the band, a pair of T-shaped slots is etched in the radiating patch to reject unwanted frequency bands. The proposed design provides a gain of 5.67 dB at 10 GHz, 9.33 dB at 28 GHz and 9.57 dB at 38 GHz; the radiation pattern is mostly directional.

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