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The scope of this study is to design and develop a miniature antenna for future mobile and wireless communication 5G.On this paper is designed a new type DGS antenna for future mobile. The size of this antenna is 5.33mm width and 6.67mm long, with dielectric constant =2. 2 and thickness H=0. 8mm. The new patch antenna has T&U slotted and notches.50 ohm single microstrip line feeding with radiation patch, which is resonant with the dual band frequencies. The design and simulation results are analyzed the return loss, VSWR, surface current distribution, Fairfield radiation pattern and Fairfield gain. This antenna obtained the return loss-20.16576dB and-28.7672dB which cover the27.58443GHz to 27.652 GHz and 29.284GHz to 29.318 GHz band. The Fairfield gain have a 7.35dB and 5.11dB.This antenna operates dual band frequency 27.626Gz and 29.303 GHz for 5G communication is presented..

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This paper aims to model and analyze planar antennas for high frequencies using an iterative wave design procedure (WCIP). The formulation adopted in the method allowed determining a basic equation for the interaction of linearly combined electromagnetic fields with the incident and reflected waves in various dielectric media over a discontinuity. In this paper, we design a broadband terahertz patch antenna using graphene. We propose to design a new numerical tool to model the implementation of graphene to achieve an efficient and flexible antenna. The design methodology started with the design of a compact conventional microstrip antenna for 118.87 GHz, and the antenna was then miniaturized using rectangular slots. Based on the simulation results, the suggested structure antenna with a slot can offer great characteristics in terms of broadband performance and frequency reconfiguration using various voltages on the graphene. The antenna provides frequency bands f r1 = 118.7 GHz, f r2 = 120 GHz, f r3 = 123.36 GHz, f r4 = 128.27 GHz, f r5 = 131 GHz, and f r6 = 132.8 GHz with bandwidths ∆f r1 = 9.5 GHz, ∆f r2 = 3.66 GHz, ∆f r3 = 4 GHz, ∆f r4 = 3.23 GHz, ∆f r5 = 3.401 GHz, ∆f r6 = 3.01 GHz and uniform radiation patterns, the value of VSWR between 1 and 2 for different chemical potential values respectively µ c = 0.1 eV, µ c = 0.2 eV, µ c = 0.3 eV, µ c = 0.4 eV, µ c = 0.5 eV, µ c = 0.6 eV using polyimide with a dielectric constant of 3.5 and a loss tangent of 0.008. In addition, we studied the effect of different substrate materials (Arlon and Duroid 5880). The simulation is performed using a new WCIP equation, and the validation is performed by comparison with the finite integration method in technique (FIT). A comparison of the computation time is presented in this paper.

In this work, a new antenna will be presented in the form of F-inverted working at 28Ghz frequency is proposed for 5G wireless com- munications. This antenna has been designed based on an FR-4. with shaped slots on the patch and interdigital slots in the ground for band- width enhancement. The PIFA antenna has an operating frequency of 28 GHz with S11,-39.0885 dB, while the peak gain is 7.85dBi. Therefore, it is suitable for applications of 5G wireless communications with good matching and return loss characteristics. The proposed design model and performance evaluation of the PIFA antenna has been executed by CST Microwave Studio and HFSS.