Dual-band (28/38 GHz) MIMO Antenna System for 5G Mobile Communications with Efficient DoA Estimation Algorithm in Noisy Channels

In this paper, a dual-band (28/38 GHz) linear antenna arrays of four and eight elements are proposed to work as a MIMO arrays for the 5G communication systems. Each element in the array is a dual-band Yagi-Uda antenna designed to operate at 28 and 38 GHz. The eight-elements array size has a total dimension of 79.4 mm x 9.65 mm excluding the feeding microstrip line. The maximum gain of the array is about 18 dB. The peaks of correlation at matched angles (PCMA) technique is applied to determine the direction of arrival for multiple incoming signals. The effects of phase noise and additive Gaussian noise on the error in the DoA estimation are studied showing good accuracy of the PCMA algorithm. Numerical and experimental investigations are achieved to assess the performance of both the single-element antenna and the eight-element MIMO linear antenna array. It is shown that the simulation results agree with the experimental measurements and both show good performance of the single antenna as well as the MIMO linear array system. The envelope correlation coefficient (ECC) and the diversity gain (DG) are calculated and the results show that the proposed MIMO antenna system is suitable for the forthcoming 5G mobile communications. The radiation patterns for single antenna and four-element array are measured and compared to the electromagnetic simulation results showing good agreement.

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Design and Analysis of MIMO Dual Band Patch Antenna for 5G New Radio Applications in Mobile Terminals

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.36072 ◽

2021 ◽

Vol 9 (VI) ◽

pp. 5446-5451

Author(s):

Swati Dhandade

Keyword(s):

Mobile Communications ◽

Antenna Design ◽

Dual Band ◽

Slight Variation ◽

Band Frequency ◽

Mimo Antenna ◽

High Isolation ◽

New Radio ◽

Compact Size ◽

5G Mobile Communications

This paper presents a dual-band MIMO antenna design with compact size for 5G communication under 6 GHz band frequency. The metallic monopole stub structure is used to miniaturization of antenna. The L-shape monopole antenna is modified by adding semi-circular element in radiating structure of monopole to obtain dual-band resonance. The High isolation is achieved by employing T-shaped stub in ground plane.It has compact size is 45 mm × 25 mm × 1.6 mm3. The proposed Dual Band MIMO antenna has been design on FR4 material with ɛr = 4.4 with 1.6 thickness. The proposed antenna has 5G application in the bands of 2.5 GHz (2.34 GHz-2.62 GHz) and 3.5 GHz (3.20 GHz-5.20 GHz). The bandwidth of antenna getting 320MHz and 2500MHz at 2.5GHz and 3.5GHz respectively. The Isolation (S21) of proposed antenna is -31.2 dB at 2.5 GHz and -19.5 dB at 3.5 GHz. VSWR is less than 1.06 for both the bands. The designed dual band MIMO antenna covers 5G bands of 2.3-2.4GHz (n30/n40), 2.4-2.5GHz (n7/n38/n41/n90), and 3.2-5.2GHz (n77/n78/n80). The experimental and simulated results observed good matching except some slight variation. This proposed dual band MIMO antenna is suitable for 5G mobile Communications.

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Antenna for 5G mobile Communications Systems at 10 GHz

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.36.29071 ◽

2018 ◽

Vol 7 (3.36) ◽

pp. 13

Author(s):

Muhammad Sani Yahya ◽

Ishaku Abdul Dalyop ◽

Yusuf Saleh ◽

Murtala Aminu-Baba

Keyword(s):

Radio Astronomy ◽

Mobile Communications ◽

Space Research ◽

Dual Band ◽

Maximum Gain ◽

Fifth Generation ◽

Communications Systems ◽

Mobile Communications Systems ◽

Simulation Results ◽

5G Mobile Communications

The design of compact dual band grid array antenna (GAA) designed on FR-4 substrate for future Fifth Generation (5G) Mobile Communications at 10 GHz is reported. The proposed antenna uses coaxial technique of feeding and has a dimension of 48 mm × 55 mm × 1.6 mm. Simulation results using CST microwave studio illustrates that the antenna has a band from 10.03 GHz to 10.68 GHz and another band from 10.7 GHz to 12.23 GHz. This excludes the 10.68 – 10.7 GHz band in which emissions were forbidden by the Radio Regulations in the sense that it has been allocated for the Radio Astronomy, Space Research and Earth Exploration Satellite (passive). The antenna has a maximum gain of 8.03 dBi at 10 GHz, thus a good candidate for the future 5G mobile communications.

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Dual-Band 28/38 GHz Inverted-F Array Antenna for Fifth Generation Mobile Applications

Proceedings ◽

10.3390/proceedings2020063053 ◽

2020 ◽

Vol 63 (1) ◽

pp. 53

Author(s):

Mustapha El Halaoui ◽

Laurent Canale ◽

Adel Asselman ◽

Georges Zissis

Keyword(s):

Mobile Communications ◽

Communication Systems ◽

Printed Circuit Board ◽

Array Antenna ◽

Circuit Board ◽

Dual Band ◽

Compact Structure ◽

Fifth Generation ◽

Data Rates ◽

5G Mobile Communications

The development of 5G (fifth generation) mobile communication systems was initiated to meet the expected need for higher data rates. In this article, a new 28/38 GHz dual-band “inverted-F” array antenna for 5G applications is proposed. This antenna can be integrated in OLEDs (Organic Light Emitting Diodes) panels which can be used both for lighting or display. This 5G antenna, composed of 32 elements, has the advantage of a dual-band and compact structure. Each element of the array antenna has the shape of an “inverted-F” antenna. This array antenna can cover the 28 GHz band (27.94–28.83 GHz) and the 38 GHz band (37.97–38.96 GHz) with mutual coupling between the elements less than −35 dB. The characteristics of the end fire radiation beams were obtained by employing an array of 32 “inverted-F” antenna elements on the upper and lower portions of the PCB (Printed Circuit Board). The suggested design has a gain of approximately 16.52 dB at 28.38 GHz and 15.35 dB at 38.49 GHz, which is suitable for 5G mobile communications.

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Swiftlet Vocalization in Echolocation

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.36.29070 ◽

2018 ◽

Vol 7 (3.36) ◽

pp. 10

Author(s):

Nazriah Mahmud ◽

Nor Hisham Khamis ◽

Azli Yahya ◽

Moktar Harun ◽

Ameruddin Baharom ◽

...

Keyword(s):

Radio Astronomy ◽

Mobile Communications ◽

Space Research ◽

Array Antenna ◽

Dual Band ◽

Maximum Gain ◽

Fifth Generation ◽

The Future ◽

Simulation Results ◽

5G Mobile Communications

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Modified MIMO Cube for Enhanced Channel Capacity

International Journal of Antennas and Propagation ◽

10.1155/2012/734896 ◽

2012 ◽

Vol 2012 ◽

pp. 1-10

Author(s):

Lajos Nagy

Keyword(s):

Frequency Dependence ◽

Channel Capacity ◽

Indoor Environment ◽

Antenna System ◽

Mimo Antenna ◽

Simulation Results

This paper deals with the optimization of MIMO antenna elements' position in modified MIMO cube for getting maximal channel capacity in indoor environment. The dependence of the channel capacity on the antenna orientation was analyzed by simulations. We have also examined the effect of the frequency dependence of the antenna system (in case of conjugate matching and nonconjugate matching) for the channel capacity. Based on the simulation results in the created and measured antenna system, the antennas were at a right angle to each other. At the two chosen different structures, we measured the antenna parameters and the channel capacity. In this paper, we present the results of the measurements which clearly confirm our simulations. We will point out the differences between the two antenna structures.

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