A compact four‐element <scp>MIMO</scp> antenna for <scp>WLAN</scp> applications

Pandit, Soumya; Mohan, Akhilesh; Ray, Priyadip

doi:10.1002/mop.30961

Cited by 73 publications

(34 citation statements)

References 9 publications

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“…However, gain values of these antenna are quite low while the isolation ones are under −16 dB. In detail, the gain values in [12] and [13] are very low (under 2 dBi). In addition, the bandwidth percentage of antenna in [13] is only 2%.…”

Section: Introductionmentioning

confidence: 89%

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Gain Enhancement in Mimo Antennas Using Defected Ground Structure

Nguyen¹

2019

PIER M

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This paper investigates a low-profile Multiple Input Multiple Output (MIMO) antenna with enhanced gain based on Defected Ground Structure (DGS). The proposed antenna consists of two sets of four elements (2 × 2), and it is yielded at the central frequency of 5.5 GHz for Wireless Local Area Network (WLAN) applications. Being on RT5880 with height of 1.575 mm, the overall dimensions of MIMO antenna and single array are 145 × 88 × 1.575 mm 3 and 75 × 82 × 1.575 mm 3 , respectively. To get high gain and low mutual coupling for antenna, a Defected Ground Structure (DGS) is proposed and integrated on ground plane. At 5.3 GHz, the gain of antenna achieves approximately 9.5 dBi while mutual coupling level is under −20 dB. Besides, the MIMO antenna witnesses a radiation efficiency of 93%. The measurement results are compared to simulation ones to verify the performance of the proposed antenna.

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Section: Introductionmentioning

confidence: 89%

“…Recently, there are a lot of published papers to improve parameters for MIMO antennas, and they have been proposed in [12][13][14][15]. However, gain values of these antenna are quite low while the isolation ones are under −16 dB.…”

Section: Introductionmentioning

confidence: 99%

Gain Enhancement in Mimo Antennas Using Defected Ground Structure

Nguyen¹

2019

PIER M

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“…In [15], MIMO antenna radiating in the Wi-Fi frequency band using a combination of 3 dipoles and 1 slot antenna is proposed. A 4-port compact MIMO antenna for WLAN application is proposed in [16] [23], and other wireless applications [22][23][24][25][26][27][28][29] are proposed. In [30], an eight-element MIMO antenna applicable for mobile terminals working in sub 6GHz 5G band working from 3.3 -3.6 GHz is proposed.…”

Section: Introductionmentioning

confidence: 99%

Compact Wideband Four Element Optically Transparent MIMO Antenna for mm-Wave 5G Applications

et al. 2020

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A four-element compact wide-band optically transparent MIMO antenna with a full ground plane is proposed. The four elements transparent MIMO system has a compact size of 24×20 mm 2 with the undivided ground plane as most of the real-time systems demand a common reference. The complete antenna system achieves around 85% transparency due to a combination of AgHT-8 and Plexiglas which forms the transparent conductive patch/ground and substrate, respectively. The antenna geometry leads dual-band operation ranging from 24.10-27.18 GHz (Impedance bandwidth = 12%) and 33-44.13 GHz (Impedance bandwidth = 28.86%) targeting the mm-wave 5G applications. The 4-element antenna system achieves isolation between inter-elements > 16 dB and maximum gain value of greater than 3 dBi with more than 75% efficiency. The proposed transparent MIMO antenna is evaluated in terms of diversity gain (DG), envelope correlation coefficient (ECC), total active reflection coefficient (TARC), and mean effective gain (MEG) where decent MIMO performance with isolation more than >16 dB between the adjacent and other elements is achieved. Transparent MIMO antenna achieves directional patterns for the operating band with the value of DG > 9, ECC < 0.1, TARC value less than-15dB, and the ratio of MEG within the agreed limit of ±3 dB confirming acceptable MIMO/diversity performance.

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“…In Ref. , a compact four element MIMO antenna is proposed which covers the WLAN frequency spectra from 5.6 to 5.8 GHz. In the herein cited study, a four element fractal structured antenna is presented that uses unshared ground planes for each element and provides ultra wideband frequency with notch band rejection characteristics.…”

Section: Introductionmentioning

confidence: 99%

Compact dual wide‐band four/eight elements MIMO antenna for WLAN applications

Roy

Ghosh

Chakarborty

2019

Int J RF Microw Comput Aided Eng

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A compact four and eight elements multiple-input-multiple-output (MIMO) antenna designed for WLAN applications is presented in this article. The antenna operates in IEEE 802.11b/g WLAN (2.4 GHz), IEEE 802.11 ac/n WLAN (5.2 and 5.8 GHz) and WiMAX (5.8 GHz) bands. The resonated mode of the antenna is achieved by two unequal Reverse-L shaped, line-shaped slots on top and parasitic element on the ground layer. The single antenna provides wide bandwidth of about 29% (2.3-3.1 GHz) in lower and 22% (4.9-6.1 GHz) in the upper band. The compactness of the single element antenna is found about 95% with respect to the patch and 61% in overall dimension. Thereafter an investigation is carried out to design two, four, and eight elements MIMO antennas. All of the multi-element structures provide compact configuration and cover entire WLAN frequency ranges . The dimension of the proposed eight element MIMO antenna is 102 × 52 × 1.6 mm 3 . It covers the frequency (measured) from 2.4 to 3.1 GHz and 5 to 6.1 GHz. The diversity performance of the proposed MIMO antenna is also assessed in terms of the envelope correlation coefficient (ECC), diversity gain (DG), and total active reflection co-efficient (TARC). The ECC is found <0.5 whereas the DG >9.0 is obtained for the desired bands. K E Y W O R D S broadband antenna, compact antenna, dual band MIMO, eight element MIMO, four element MIMO

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A compact four‐element MIMO antenna for WLAN applications

Cited by 73 publications

References 9 publications

Gain Enhancement in Mimo Antennas Using Defected Ground Structure

Gain Enhancement in Mimo Antennas Using Defected Ground Structure

Compact Wideband Four Element Optically Transparent MIMO Antenna for mm-Wave 5G Applications

Compact dual wide‐band four/eight elements MIMO antenna for WLAN applications

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