Abstract
This paper presents a 10-ports, hybrid multiple-input multiple-output (MIMO) antenna system for 5G Smartphone applications. The proposed antenna system comprises two types of antenna modules: (1) multi-band module consists of two identical multiband antenna elements, each antenna element in this module covers the 2G bands (GSM 850/900/1800/1900 MHz), 3G band (UMTS 2100 MHz) and 4G bands (LTE 2300/2500), and (2) single-band module consists of eight identical L shape elements, each antenna element in this module covers the C-band (3400-3600 MHz) for 5G mobile application. The overall dimensions of the proposed antenna system are 150 × 80 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . The proposed antenna system is fabricated and tested. Experimental results show reflection coefficients better than -6 dB and -10 dB for multi-band and single-band modules, respectively, with high isolation levels between the antenna elements in both modules. Moreover, the measured envelop correlation coefficients (ECC) is well below 0.3 and 0.1 for the proposed multi-band and single-bands modules, respectively. In addition, single antenna elements in both modules show good radiation characteristics with maximum peak gain between 2 dBi and 4 dBi. Finally, 43 bps/Hz channel capacity is achieved in the single-band module. With these characteristics, the proposed antenna system can be a good candidate in the modern mobile communication systems.
Highlights
With the rapid advancements in the mobile communication technology, mobile communication networks have become heterogeneous kind of network environment, which can support multiple frequency bands of different cellular generations [1]
In this paper, a 10-ports hybrid multiple-input multiple-output (MIMO) antenna system was introduced for 5G smart-phone applications
The proposed MIMO antenna system was composed of a multi-band and single-band antenna modules
Summary
With the rapid advancements in the mobile communication technology, mobile communication networks have become heterogeneous kind of network environment, which can support multiple frequency bands of different cellular generations [1]. The first generation (1G) was introduced for supporting analogue voice calls service. The third generation (3G) was introduced with multimedia services such as high-speed internet, high quality video and voice calls services. Very high-speed internet services over severe multipath channel environments was introduce in the fourth generation (4G) [2]. 2 × 2 MIMO antenna system has been efficiently used in 4G mobile communication [6]. As reported in [7], expected data rates for 5G will be 100 times more than the currently used 4G technology, and this data rate cannot be achieved by using the conventional 2 × 2 or even 4 × 4 MIMO antenna systems. Several countries and regions have already started testing and defining standard for future 5G mobile communication.
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