Bandwidth and Gain Enhancement of MIMO Antenna by Using Ring and Circular Parasitic with Air-Gap Microstrip Structure

Herudin, Herudin; Suhendar, Suhendar; Wiryadinata, Romi; Santoso, Muhammad Iman; Denny, Yus Rama; Supriyanto, Toto

doi:10.12928/telkomnika.v15i3.6377

Cited by 19 publications

(15 citation statements)

References 4 publications

(5 reference statements)

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“…In addition to this, via is used in References which increases design complexity. The antennas in References are larger in size with LP. Thus, it is clear that a dual band dual polarization (CP and LP), isolation, polarization diversity (RHCP and LHCP), and gain enhancement all have been presented at one place in the proposed work.…”

Section: Discussionmentioning

confidence: 99%

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Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

Islam

Das²

2020

Int J RF Microw Comput Aided Eng

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A dual‐band MIMO slot antenna with polarization diversity and improved gain is proposed in this article. The antenna is composed of two C‐type back‐to‐back connected slot resonators and offers resonances at 3.5 and 5.2 GHz. This antenna element is further used to design a MIMO antenna. By introducing one U‐shaped slot between two antenna elements, isolation between the ports of this MIMO antenna is improved further. Finally, an artificial magnetic conductor (AMC) is placed below the MIMO antenna to enhance its gain. Gain enhancement of 1.5 and 2.2 dB is achieved at lower and upper band, respectively. S‐parameters, radiation patterns, gain, envelope correlation coefficient, and channel capacity loss are investigated to conclude about its performances in MIMO applications. Dual band dual polarization (circular and linear), improved isolation, polarization diversity (right‐hand circular polarization and left‐hand circular polarization), gain enhancement all are presented in a simple design represents the novelty of the proposed MIMO antenna.

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Section: Discussionmentioning

confidence: 99%

“…Gain enhancement of a triple band linearly polarized (LP) antenna is discussed in Reference . Increase in gain of linear polarized MIMO antenna is presented in References , however, gain enhancement of circularly polarized antenna for MIMO applications has remained a challenge to the researchers.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

Islam

Das²

2020

Int J RF Microw Comput Aided Eng

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“…One type of antenna that can be used to increase the channel capacity of MIMO is a microstrip antenna [6]. The microstrip antenna has many benefits such as low cost, low profile, ease fabrication, and compact [7].…”

Section: Introductionmentioning

confidence: 99%

High gain 5G MIMO antenna for mobile base station

Rahayu¹,

Sari²,

Ramadhan³

et al. 2019

IJECE

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This article presented a millimeter wave antenna which operated at 38 GHz for 5G mobile base station. The MIMO (Multiple Input Multiple Output) antenna consisted of 1x10 linear array configurations. The proposed antenna’s size was 88 x 98 mm^2 and printed on 1.575 mm-thick Rogers Duroid 5880 subsrate with dielectric constant of ε_r= 2.2 and loss tangent (tanδ) of 0.0009. The antenna array covered along the azimuth plane to provide the coverage to the users in omnidirection. The simulated results showed that the single element antenna had the reflection coefficient (S11) of -59 dB, less than -10 dB in the frequency range of 35.5 - 39.6 GHz. More than 4.1 GHz of impedance bandwidth was obtained. The gain of the antenna linear array was 17.8 dBi while the suppression of the side lobes was -2.7 dB. It showed a high array gain throughout the impedance bandwidth with overall of VSWR were below 1.0646. It designed using CST microwave studio.

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“…Finally, Section 4 concludes this research. The radius of circular-shaped microstip patch antenna is formulated by [26], [27]: 1113 with h=thickness of substrate (cm), r=permittivity of substrate, and =resonant frequency (Hz). A direct feeding method was used in this paper.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

Praptodiyono¹,

Herudin²,

Aribowo³

et al. 2019

IJECE

Self Cite

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In this paper, circular-shaped microstrip antenna was simulated, fabricated, and measured accordingly. As the novelty, to enhance bandwidth and reduce antenna size, beleved half-cut microstrip structure is proposed. Further, this proposed antenna structure will be applied to multiple input multiple output (MIMO) antenna 2´2. Therefore, this research was investigated conventional circular shape antenna (CCSA), circular shaped beleved antenna (CSBA), and MIMO circular shaped beleved antenna (MIMO-CBSA) as Model 1, Model 2, and Model 3, respectively. An FR4 substrate with er= 4.4, thickness h=1.6 mm, and tan d=0.0265 was used. The simulation has been conducted using Advanced Design System (ADS). The antenna CCSA/CSBA/ MIMO-CBSA achieve 1.831GHz/2.265 GHz/2.256 GHz, -15.13dB/-17.37dB/-17.25 dB, 1.42/1.31/1.33, and 1.474/2.332/2.322 for center frequency, reflection coefficient, VSWR, and bandwidth, respectively. This antenna has a size 63x90 mm and 51.5x90 mm for CCSA (Model 1) and CSBA (Model 2), respectively. After the structure of MIMO 2´2 was applied, the size of antenna MIMO-CBSA (Model 3) became 180 mm x 180 mm with a mutual coupling (S21)=-26.18 dB and mutual coupling (S31)=-26.41 dB. The result showed that proposed antenna CSBA (Model 2) has wider-bandwidth of 58,2% and smaller-size of 18.2%. Furthermore, after CSBA (Model 2) structure was applied to MIMO 2´2 (Model 3) and the MIMO antenna obtain good mutual coupling (<-15dB). Moreover, the measured results are good agreement with the simulated results. In conclusion, all of these advantages make it particularly valuable in multistandard antenna applications design such as GSM950, WCDMA1800, LTE2300, and WLAN2400.

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Bandwidth and Gain Enhancement of MIMO Antenna by Using Ring and Circular Parasitic with Air-Gap Microstrip Structure

Cited by 19 publications

References 4 publications

Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

High gain 5G MIMO antenna for mobile base station

Bandwidth enhancement and miniaturization of circular-shaped microstrip antenna based on beleved half-cut structure for MIMO 2x2 application

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