Comparison Between 4-Elements And 8-Elements Typical Size Array Antennas For 5G Mobile Communication
In this paper, a phased array antenna design for 5G mobile communication is presented. Smart antenna for 5G has an ability to radiate signal towards users at far distance with high directivity. A notched circular patch antenna array operating at 28GHz using CST software has been designed. Extensive optimization process for optimum antenna performance is done besides analyzing the beam forming pattern of the antenna for 5G antenna using CST software. Several tools are used throughout the design procedure, such as antenna design tool Antenna Magus.
In this work, 2x2 array and 2x4 array antennas which have an antenna’s elements spacing of lambda (0. 7λ) are designed consecutively. Rogers of εr 2. 2 (Rogers RT5880) is used as the dielectric substrate because a low dielectric substrate close to air or close to 1 will allow a higher radiation pattern as compared to much higher permittivity value and also a substrate thickness of 0. 5357mm is used. The simulation is successfully completed, based on the VSWR 3: 1 (return loss of -6 dB) the antenna matched the Band Width (BW) of 15% at frequency of 28GHz. The achieved gain and directivity are greater than 10dB and 10dBi respectively.
Introduction
It has been projected that in the next decade, a mobile traffic will be increased on the order of 1000 times as expected compared to what is experienced today. To meet the dramatic traffic growth, next generation mobile networks are also expected to achieve a 1,000-fold capacity increase compared to the current generation of wireless network deployment. Based on the Cisco report of yearly visual network index (VNI), there are quantitative proof which show explosion of data in Wireless communication is true and will continue. This data is largely driven by smartphones, tablets, and video streaming. the most recent VNI report and forecast makes clear that an increasing approach will not be enough for demanding of the networks by 2020. In few decades, the size of data for IP handled by the networks of wireless will have incremented by more than a factor of 100: from less 3 exabytes in 2010 to more than 190 exabytes in 2018, on a speed to override 500 exabytes by 2020. So, increasing network infrastructure visualization is needed, and the need for greatly incremented energy efficiency.
The 5 generations will be a model shift that will contains a very huge carrier with enormous bandwidths, device densities and extreme base station and new numbers of antennas. Mobile communications are becoming progressively demanding as far as bandwidth is concerned due to the increased content requirements. In order to face this challenge, the telecommunication community will channel towards higher frequencies where more spectrum could be accessible. Furthermore, the local multipoint distribution service (LMDS) band around 28 is a potential entrant for short range outdoor wireless communications.
However, at higher frequencies, since the wavelength becomes increasingly, the antenna design challenges change from declining size and shrinking to increasing gain and enabling beam navigation. The new spectrum is mostly expected to be allocated in the super high-frequency bands (3-30GHz) as well as the extremely high frequency bands (30-300 GHz), also referred to as mm Wave bands, where the channel transmission characteristics are different from those of frequency bands below 3 GHz. This difference will require a new strategy of the air-interface and network architecture. The 28 GHz band has not been studied for mobile application and there are very few researchers actively pursuing this topic. Therefore, the need to develop antenna solutions for mobile components at these frequencies is a key enabler. Printed solutions for Ka-band are rare.
