A novel dual-band MIMO antenna with two rings for WIMAX applications

Sun, De-Ming; Wang, Peng; Gao, Peng; Zhang, Yalong

doi:10.1080/09205071.2017.1377642

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…However, the performance of the MIMO system is degraded by the mutual coupling between antenna elements. To achieve the high isolation between antenna elements, different types of isolation techniques are reported in the literature for-instance transmission lines (S 21 > −15 dB) [15], diagonally opposite position (S 21 > −12 dB) [16], orthogonality between elements (S 21 > −12 dB) [17], (S 21 < −14 dB) [18], (S 21 = −18 dB) [19], placing in opposite manner (S 21 > −19 dB) [20], transmission lines and slots (S 21 > −25 dB) [21], a shorting strip and stub (S 21 > −27 dB) [22], a stepped slot ended with an ellipse (S 21 < −18 dB) [23], a parasitic element (S 21 < −15 dB) [24], a decoupling structure (S 21 < −24 dB) [25], separation between elements (S 21 < −20 dB) [26], vertical position (S 21 = −16.5 dB) [27], meandering line and decoupling structure (S 21 < −25 dB) [28], (S 21 < −26.57 dB) [29], symmetric slot lines and reversed alignment of radiators (S 21 > −15 dB) [30], defected ground plane and neutralization lines (S 21 < −17 dB) [31], microstrip resonator (S 21 > −35 dB) [32], a T-shape isolator (S 21 > −12.4 dB) [33], a decoupling structure with branches and slots (S 21 < −15 dB) [34], and parallel arrangement (S 21 > −18 dB) [35].…”

Section: Introductionmentioning

confidence: 99%

A Compact Four-Port High Isolation Hook Shaped Acs Fed Mimo Antenna for Dual Frequency Band Applications

Naidu¹,

Maheshbabu²,

Akkapanthula³

et al. 2021

PIER C

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In this work, a novel 4 element Multi-Input Multi-Output (MIMO) antenna is reported. The proposed antenna has a size of 50 × 50 × 1.6 mm 3 is printed on the FR-4 substrate having dielectric constant ε r = 4.4 and loss tangent (tan δ = 0.02). The four antenna elements are positioned in each corner of the PCB board in an orthogonal manner such that they can provide better isolation between antenna elements. The proposed MIMO antenna is designed to operate in frequency bands of 2.25 GHz to 2.4 GHz and 4.7 GHz to 6.3 GHz. The lower band ranges from 2.25 GHz to 2.4 GHz and covers 2.3 GHz WiBro applications while the upper band ranging from 4.7 GHz to 6.3 GHz is useful for HiperLAN and Wi-MAX applications. The proposed antenna acquires return loss less than −10 dB and isolated by more than 16 dB throughout the dual operating bands. The structure exhibits stable gain and radiation patterns. Various diversity performance metrics including envelope correlation coefficient (ECC), diversity gain (DG), and mean effective gain (MEG) are evaluated and are within acceptable limits. Full wave simulation results in terms of impedance and radiation characteristics are presented to evaluate the proposed antenna performance in an installed environment.

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Section: Introductionmentioning

confidence: 99%

A Compact Four-Port High Isolation Hook Shaped Acs Fed Mimo Antenna for Dual Frequency Band Applications

Naidu¹,

Maheshbabu²,

Akkapanthula³

et al. 2021

PIER C

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“…The decoupling and neutralization techniques was applied to reduce the mutual coupling in wideband application [7][8][9], however in such case, the antenna dimension is increased. Also, to enhance the isolation, two rectangular radiating rings patch [10] and two opposite counter facing F-structured slots embedded in the ground [11] are studied. In [12], MIMO antenna for dual band operation is designed by using the meander line with combine half circle shaped structure between the two monopole antennas.…”

Section: Introductionmentioning

confidence: 99%

Swastika shaped slot embedded two port dual frequency band MIMO antenna for wireless applications

Tiwari

Singh

Pandey³

et al. 2021

Analog Integr Circ Sig Process

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A compact dual band 2 9 2 multiple-input-multiple-output (MIMO) antenna with dimension 46 9 30 9 1.6 mm 3 is reported. The designed CPW-fed MIMO antenna structure consists of swastika shaped slot in the rectangular patch. A Tshaped narrow conducting strip is used in ground plane to improve the isolation between the two radiating elements. The measured lower and upper frequency bandwidths are respectively 64.96% (1.85-3.63 GHz) and 44.36% (5.07-7.96 GHz), along with the corresponding isolation À 17.21 dB and À 22.42 dB. The measured realized gain changes from 1.14 to 4.12 dBi (lower band) and from 1.42 to 4.78 dBi (upper band) and the radiation efficiency is found over 72% for both the frequency bands. The antenna diversity parameters alongwith the radiation patterns are also investigated. Initially, the antenna is modelled using CST Microwave studio and the optimized design is fabricated and measured for validity of results.

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“…As a result, this ACS MIMO design system is relatively compact, simple, yet performs harmoniously with minimum of fabrication efforts. The following Table 1 gives a brief summary of published literature [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] and its summary. In this research article, an ACS-fed G-shaped 4-port MIMO antenna with tri-band characteristics has been designed and developed.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Analysis of G-Shaped Compact Acs Fed 4-Port Mimo Antenna for Triple Frequency Band Applications

Naidu¹,

Akkapanthula²,

Maheshbabu³

et al. 2021

PIER C

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In this paper, a novel compact single element G-shaped Asymmetric Coplanar Strip (ACS) fed antenna and its four-element printed multiple-input multiple-output (MIMO) antenna have been presented with multi-band frequency characteristics. The proposed MIMO antenna has been fabricated on an FR-4 substrate (46 × 46 × 1.6) mm 3 with dielectric constant ε r = 4.4. The desired isolation between the elements (−18 dB) is achieved by placing the antenna elements orthogonal to each other. Simulated and measured results show that return loss (S 11 ) for the proposed MIMO antenna is less than −10 dB in the operating bands, with frequency ranging 2.30-2.45 GHz, 3.36-3.65 GHz, and 4.53-5.88 GHz, respectively, which ensures its operation in multiple frequency bands. Moreover, these bands are obtained for 2.3 GHz WiBro,LTE and 5G NR to cover B40/B42/N30/N40/N97 together with 3.5 GHz/5 GHz WiMAX/WLAN band applications. Meanwhile, the diversity performance characteristics like ECC (Envelope Correlation Coefficient), MEG (Mean Effective Gain), DG (Diversity Gain), Total Active Reflection Coefficient (TARC), and Channel Capacity Loss (CCL) have been calculated and are presented in this paper. The correlation coefficient is found to be less than 0.001 with a diversity gain greater than 9.95, and an acceptable channel capacity loss is less than 0.4 bits/s/Hz.

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A novel dual-band MIMO antenna with two rings for WIMAX applications

Cited by 16 publications

References 6 publications

A Compact Four-Port High Isolation Hook Shaped Acs Fed Mimo Antenna for Dual Frequency Band Applications

A Compact Four-Port High Isolation Hook Shaped Acs Fed Mimo Antenna for Dual Frequency Band Applications

Swastika shaped slot embedded two port dual frequency band MIMO antenna for wireless applications

Design and Performance Analysis of G-Shaped Compact Acs Fed 4-Port Mimo Antenna for Triple Frequency Band Applications

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