Abstract
AbstractFuture 5G communication technology usage will focus on the coexistence of microwave (i.e., sub-6 GHz) and millimeter wave antenna design on a single layer. In this paper, a novel dual band antenna design has been proposed supporting sub-6 GHz (resonance at 3.5 GHz) and millimeter wave (resonance at 28 GHz) operation with single feed. Initial design of antenna was adopted using cavity model. Proposed novel antenna design consists of slots at 3.5 GHz and recessed microstrip for 28 GHz band. Parametric study has been done to achieve the compactness and improve the performance parameters of the antenna. Proposed design is modelled and simulated on Rogers RT 5880 substrate with relative permittivity of 2.2. The simulated antenna design offers the efficiency and gain of 87% and 1.8 dBi at 3.5 GHz respectively, while efficiency and gain of around 76% and 7.69 dBi at 28 GHz respectively. In addition to the stable antenna parameters, the proposed antenna design maintains the frequency ratio of 8 with the compact size of around 17.51 × 20 × 0.508 mm3. The design is kept simple and low profile and will offer ease of fabrication.KeywordsFrequency ratioCurrent densityCavity modelMillimeter waveCST3GPPe-MBBITU-R
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