This paper presents a dual-band pentagon double-ring loaded patch antenna, demonstrating effective operation in two distinct millimeter wave (mm-Wave) bands 28/38 GHz with a bandwidth of 17.80% & 6.46%. The gain of the proposed antenna is 3.92/4.57 dBi with radiation efficiency greater than 92% over the entire band of operation. The antenna is designed with precision using Rogers RT5880 substrate with a thickness of 0.508 mm & a relative permittivity of 2.2. This design represents a simple design approach for creating a dual-band and compact planar antenna for millimeter-wave 5G communication.
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Rao et al. (2024) studied this question.
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