رسائل ماجيستير
English
2019
Design of a Pattern Reconfigurable Massive MIMO Antenna for 5G Technology
Azzedine Zerguine, سعيد أحمد سعيد هيضه, محمد شعراوي
كلية الهندسة-جامعة الملك فهد للبترول والمعادن · السعودية
The amounts of data rates is increasing sharply with time. In addition, the number of connected devices to the network is increasing sharply with time. 5G networks with the use of advanced technologies such as the use of massive MIMO systems, and with the use of developed wireless standards will be able to serve this huge number of data rates and connected devices to the network. Hence, contributions to 5G technology is very important for the future communication networks. Therefore, one pattern reconfigurable 4Χ4 massive MIMO slot-based antenna at 3.6 GHz with a size of 21 Χ 21 Χ 2 cm^3 and with an enhanced performance compared to previous mMIMO designs was proposed and presented in the work of this thesis. The used single element in the mMIMO is a compact and low-profile pattern reconfigurable slot-based antenna with 8 different directional patterns at 3.6 GHz.In addition, and in the direction of supporting 5G technology, a new compact and low-profile pattern reconfigurable antenna for IoT applications was proposed and presented. The size of this antenna is like the size of a credit card, such that it is suitable to be used for some specific applications where it is required to put the antenna in the pocket of a worker in a factory for example. The resonant frequency of the antenna is 868 MHz with three different patterns and with an overlapped bandwidth of 10 MHz; which is enough for IoT applications. The ECC between the three patterns are well below 0.5. The antenna is composed of two slots and one monopole, and it was concluded that the slot radiating elements are less sensitive to hand and plastic casing effects compared to monopole radiating elements.In addition, one compact and low-profile pattern reconfigurable slot-based antenna with 8 different patterns at 2.3 GHz, and 8 different patterns at 3.7 GHz was proposed and presented. This antenna can be used to localize the locations of oil wells in a large area.Finally, a new, compact and low-profile pattern reconfigurable slot-based antenna was proposed for future drones. The antenna has 4 different patterns at 3.7 GHz and 4 different patterns at 5.2 GHz.All the antennas designed in this work supports future 5G technology bands and applications, and all of them are controlled electrically. The used substrate for all antennas is FR-4 substrate.