Wideband 5G beamforming printed array clutched by LTE‐A 4 × 4‐multiple‐input–multiple‐output antennas with high isolation

Lee, Changhyeong; Khattak, Muhammad Kamran; Kahng, Sungtek

doi:10.1049/iet-map.2017.0946

Cited by 35 publications

(21 citation statements)

References 17 publications

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“…At all the inputs of the Butler matrix fabricated as in Figure C, good impedance match is achieved with [S nn ] n = 1,…,4 far below −10 dB. Like other works in refs., [] as the input port is turned on from one to four, the beam is directed at four different elevation angles as in Figure D. When the in‐phase feeding is conducted, the beam direction angle θ = 0° is added to the four directions as presented in Figure E.…”

Section: D‐array For Higher Gain and Beam‐tiltingmentioning

confidence: 99%

A stacked array antenna able to make a very large gain and tilt the end‐fire beam at the ISM‐band

Lee

Park

Lim

et al. 2019

Int J RF Microw Comput Aided Eng

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In this article, an antenna is designed to generate an end‐fire radiated beam of a very large gain for a Printed Circuit Board (PCB) structure and steer the beam at an Industrial Scientific Medical (ISM)‐band. A flush‐mounted slot‐coupled feed and two parasitic layers can increase the antenna gain substantially. This single element is made to be a 1‐by‐8 array to generate a very high gain to deliver wireless power more than single element to the far‐field zone and spot the receiver of interest without interference toward others on the azimuth plane. Furthermore, four layers of this array are stacked to tilt the beam up and down on the elevation plane for target selectivity of a higher degree and more wireless‐power transfer. The antenna system is implemented with the substrate of Rogers 4350B and operated at 2.4 GHz as the ISM‐band service, and the validity of the proposed design is verified by electromagnetic numerical simulation and physical realization. The simulation and measurement of the fabricated 1D array antenna show nearly 19 and 16 dBi, respectively as high gains. The stacked structure as a 2D array generate the titled beam moving from −35° to 35° with the antenna gain from 17 to 20 dBi for a varying angle.

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Section: D‐array For Higher Gain and Beam‐tiltingmentioning

confidence: 99%

A stacked array antenna able to make a very large gain and tilt the end‐fire beam at the ISM‐band

Lee

Park

Lim

et al. 2019

Int J RF Microw Comput Aided Eng

Self Cite

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show abstract

“…As a way to increase the speed of data transfer, the use of millimeter-wave areas was suggested [3,4] and connectivity had to be added. Hence, beamforming becomes a basic virtue to millimeter-wave antennas which are made as part of a chip for controlling the beam from an array.…”

Section: Introductionmentioning

confidence: 99%

RF Channel-Selectivity Sensing by a Small Antenna of Metamaterial Channel Filters for 5G Sub-6-GHz Bands

Khattak

Lee

Park

et al. 2020

Sensors

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In this paper, a new small antenna is suggested for 5G Sub-6-GHz band mobile communication. It can change the channel among the three given bands (called the 3.5-GHz area), as a wide-band antenna is connected to a small multiplexer comprising three metamaterial channel filters. The function of channel selection of this antenna system is experimentally demonstrated to prove the validity of the presented scheme. The channel selection for 5G mobile communication is conducted from f1 (channel 1) through f2 (channel 2) to f3 (channel 3), when TX and RX antennas with gains over 0 dBi and S11 less than −10 dB are located far-field apart (RFar ≫ 2.1 cm), and result in the transmission coefficient (S21) being the greatest at the selected channel, which is detected by a vector network analyzer.

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“…A wideband 4 × 4 multiple-input multiple-output (MIMO) antenna is presented in [15]. The design operates at 2.4 GHz for LTE-A and at 28 GHz for 5G communication.…”

Section: Introductionmentioning

confidence: 99%

Wideband patch array antenna using superstrate configuration for future 5G applications

Farhat¹,

Arshad²,

Amin³

et al. 2020

Turk J Elec Eng & Comp Sci

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In this work, four distinct antenna configurations for future-centric 5G applications are proposed. Initially, a single rectangular patch is designed to operate at the frequency of 28 GHz while maintaining a wide operational band. Performance of the antenna is improved by incorporating an array of identical rectangular elements resulting in a higher gain and wider bandwidth. The proposed arrangement consists of three rectangular elements realized using 0.508-mmthick Rogers RT/Duroid 5880 laminate. The bandwidth is further enhanced by increasing the number of radiating elements in the array from three to five. Evolution of the proposed design is concluded by stacking the superstrate layer above the five-element array structure, thereby improving the gain associated with the proposed configuration. The antenna covers the frequency band from 25.1 GHz to 30.5 GHz under consideration for 5G communications. The proposed antenna occupies a physical footprint of 3.5 × 3.5 cm 2. Performance of the presented antenna configurations is analyzed using different electromagnetic descriptors including bandwidth, reflection coefficient, gain, radiation patterns, and radiation efficiency obtained using Computer Simulation Technology Microwave Studio (CST MWS) software. The measured results, obtained after fabrication and testing, demonstrate good overall agreement with the simulated outcome. The formulated design is a prime candidate for deployment in 5G applications of the future.

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Wideband 5G beamforming printed array clutched by LTE‐A 4 × 4‐multiple‐input–multiple‐output antennas with high isolation

Cited by 35 publications

References 17 publications

A stacked array antenna able to make a very large gain and tilt the end‐fire beam at the ISM‐band

A stacked array antenna able to make a very large gain and tilt the end‐fire beam at the ISM‐band

RF Channel-Selectivity Sensing by a Small Antenna of Metamaterial Channel Filters for 5G Sub-6-GHz Bands

Wideband patch array antenna using superstrate configuration for future 5G applications

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