الفهرس | Only 14 pages are availabe for public view |
Abstract To fulfill user demands and solve the difficulties introduced by the fifth generation (5G) system, a significant modification in the strategy for 5G wireless cellular architecture is required. To address this issue, a new concept or design method for planning 5G cellular architecture has emerged: distinguishing inside and outside configurations. Massive Multiple-input Multiple-output (M-MIMO) technology will help to support this approach. Long-Term Evolution (LTE) antennas with conventional 2×2 MIMO antennas can no longer provide such high data throughput and spectral efficiency. MIMO technology must be used in 5G wireless communication systems to satisfy the requirements of 5G mobile communication, since a large MIMO system may offer a high channel capacity. For communication with indoor users, several wireless access points that have a large number of antenna arrays are required. This will increase the cellular system’s energy efficiency, average throughput, data rate, and spectrum efficiency greatly. This thesis focuses on the developing of 5G massive MIMO applications in mobile handsets and indoor base- station antenna arrays and reports some of their challenges. Based on the previous discussion, this thesis proposes three significant contributions to solve the difficulties and challenges identified. They may be summarized such as this: A proposed design of a dual-band 10 × 10 antenna array for 5G Massive MIMO applications in the mobile phone is presented. The designed array proposes ten ring loop antenna elements integrated into a limited space cell phone circuit board to cover the sub-6 GHz LTE band 42 (3.4 – 3.6 GHz), LTE band 43 (3.6 – 3.8 GHz), and LTE band 46 (5.15 – 5.925 GHz). A fourteen port MIMO array is proposed for 5G cellphone applications. A dual-band ring loop antenna is proposed to cover the LTE bands (LTE band 42/43 and LTE band 46). A proposed wideband 16- element indoor base station (BS) antenna array that can cover 3.3–6.0 GHz is proposed for 5G applications. A π-shaped monopole antenna is designed to cover the sub-6 GHz bands: Lower band (LTE bands 42/43 - N77 - N78), intermediate band (N79), and higher band (LTE 46). |