Swiftlet Vocalization in Echolocation

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

Applied Computational Electromagnetics Society ◽

10.47037/2020.aces.j.360308 ◽

2021 ◽

Vol 36 (3) ◽

pp. 282-294

Author(s):

Asmaa Farahat ◽

Khlaid Hussein

Keyword(s):

Mobile Communications ◽

Communication Systems ◽

Doa Estimation ◽

Antenna System ◽

Dual Band ◽

Linear Antenna ◽

Mimo Antenna ◽

Single Antenna ◽

Simulation Results ◽

5G Mobile Communications

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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Dual band Millimeter Wave Phased Array Antenna for 5G Mobile Communications

2020 IEEE 3rd International Conference on Electronic Information and Communication Technology (ICEICT) ◽

10.1109/iceict51264.2020.9334227 ◽

2020 ◽

Author(s):

Muhammad Usman Raza ◽

Sen Yan

Keyword(s):

Millimeter Wave ◽

Mobile Communications ◽

Phased Array ◽

Array Antenna ◽

Dual Band ◽

Phased Array Antenna ◽

5G Mobile Communications

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A Dual-Band and Low-Cost Microstrip Patch Antenna for 5G Mobile Communications

Applied Computational Electromagnetics Society ◽

10.47037/2021.aces.j.360701 ◽

2021 ◽

Vol 36 (7) ◽

pp. 824-829

Author(s):

Fatih Kaburcuk ◽

Gurkan Kalinay ◽

Yiming Chen ◽

Atef Elsherbeni ◽

Veysel Demir

Keyword(s):

Mobile Communications ◽

Patch Antenna ◽

Low Cost ◽

Microstrip Patch Antenna ◽

Dual Band ◽

Dual Frequency ◽

Microstrip Patch ◽

Fifth Generation ◽

Communication Devices ◽

5G Mobile Communications

This paper investigates the numerical and experimental analysis of a low-cost and dual-band microstrip patch antenna for the fifth generation (5G) mobile communications. The numerical analysis of the proposed antenna is performed using the computational electromagnetic simulator (CEMS) software which is based on the finite-difference time-domain (FDTD) and CST software which is based on the finite integration technique (FIT). The performance of the proposed antenna designed and fabricated on a low-cost FR-4 substrate is verified with the simulated and measured results. The antenna operates at dual frequency bands which are 24 and 28 GHz. The antenna maximum gain values are 3.20 dBi and 3.99 dBi in the x-y plane at 24 and 28 GHz, respectively. The proposed antenna provides almost omni-directional patterns suitable for 5G mobile communication devices.

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A Single Band Antenna Design for Future Millimeter Wave Wireless Communication at 38 GHz

European Journal of Engineering and Formal Sciences ◽

10.26417/ejef.v3i1.p35-39 ◽

2018 ◽

Vol 3 (1) ◽

pp. 35 ◽

Cited By ~ 2

Author(s):

Cihat Şeker ◽

Turgut Ozturk ◽

Muhammet Tahir Güneşer

Keyword(s):

Millimeter Wave ◽

Mobile Communications ◽

Return Loss ◽

Computer Software ◽

Dielectric Substrate ◽

Single Band ◽

Microstrip Patch ◽

Fifth Generation ◽

Wireless Application ◽

5G Mobile Communications

In this proposed paper, a single band microstrip patch antenna for fifth generation (5G) wireless application was presented. 28, 38, 60 and 73 GHz frequency bands have been allocated for 5G mobile communications by International Telecommunications Union (ITU). In this paper, we proposed an antenna, which is suitable for the millimeter wave frequency. The single band antenna consists of new slot loaded on the radiating patch with the 50 ohms microstrip line feeding used. This single band antenna was simulated on a FR4 dielectric substrate have relative permittivity 4.4, loss tangent 0.02, and height 1.6 mm. The antenna was simulated by Electromagnetic simulation, computer software technology High Frequency Structural Simulator. And simulated result on return loss, VSWR, radiation pattern and 3D gain was presented. The parameters of the results well coherent and proved the literature for millimeter wave 5G wireless application at 38 GHz.

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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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