Design of a Dual-Band Mimo Antenna With High Isolation for Wlan Applications

Liu, Peng; Sun, De-Ming; Wang, Peng; Gao, and Peng

doi:10.2528/pierl18011004

Cited by 26 publications

(13 citation statements)

References 17 publications

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“…The comparisons between the proposed antenna and the previous reported MIMO antennas are listed in Table 2. Compared with [9][10][11][12], the proposed antenna has a smaller size and higher isolation. Compared with [6,7,10], the proposed antenna shows larger bandwidth and higher isolation.…”

Section: Resultsmentioning

confidence: 99%

“…The isolation performance of MIMO antennas can be enhanced by loading SRRs [1,2], neutralizing line [3][4][5], Y-shape isolator element [6], a wide slot and a pair of narrow slots [7], meandering-line resonator [8], bent T-shaped resonator [9], and an elliptical slot and a rectangular parasitic strip [10]. There are also some novel structures such as reconfigurable MIMO antenna [11] and simple decoupling structure [12].…”

Section: Introductionmentioning

confidence: 99%

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A Compact Multiband Mimo Antenna for Ieee 802.11 a/B/G/N Applications

Wu¹,

Zhi²,

Chen³

et al. 2019

PIER Letters

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A compact multiband multiple-input-multiple-output (MIMO) antenna for WLAN applications is presented in this paper. The proposed MIMO antenna consists of two symmetric monopole radiating elements designed to operate over 2.45, 5.2, and 5.8 GHz bands. The isolation is enhanced by using several techniques such as parasitic elements and defected ground structure. The measured S 11 < −10 dB is obtained over 2.36-2.68 GHz and 4.81-5.95 GHz, which can cover IEEE 802.11 a/b/g/n frequency bands (2.4-2.4835 GHz, 5.15-5.35 GHz, and 5.725-5.875 GHz). The measured isolation values S 21 are less than −24 dB and −27 dB over the lower and higher frequency bands, respectively. The envelope correlation coefficient (ECC) of the proposed antenna is less than 0.027 and 0.005 over the lower and higher operating bands, respectively. The overall size of the proposed antenna is 50 × 30 × 1.59 mm 3. The proposed antenna is a good candidate for IEEE 802.11 a/b/g/n applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Compact Multiband Mimo Antenna for Ieee 802.11 a/B/G/N Applications

Wu¹,

Zhi²,

Chen³

et al. 2019

PIER Letters

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show abstract

“…The design of isolation mechanism plays a key part in the whole process because the antenna element cannot be independent within a limited space. So far, numerous MIMO antennas with dualband have been proposed in [3][4][5][6][7][8][9][10][11][12][13][14]. In [3], the method of defected ground structure (DGS) combined with meander-lines results in the isolation increasing to above 15 dB by disturbing the surface current flow.…”

Section: Introductionmentioning

confidence: 99%

“…It is reported in [6] that a combination of DGS and asymmetrical coplanar strip (ACPS) is adopted to ease mutual coupling of the dual-band MIMO antenna to above 20 dB. It is reported in [7] that MIMO antenna has a decoupling network inserted between two arranged symmetric dual-band antenna elements to obtain a high isolation over 30 dB. However, these MIMO antennas mentioned usually have large area.…”

Section: Introductionmentioning

confidence: 99%

A CPW-Fed Dual-Band Mimo Antenna With Enhanced Isolation for 5g Application

Zhao¹

2020

PIER M

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In this paper, a dual-band Multiple Input Multiple Output (MIMO) antenna for fifthgeneration (5G) band (3.3-3.6 GHz and 4.8-5.0 GHz) is presented. The proposed MIMO antenna fed by coplanar waveguide (CPW) contains two symmetric antenna elements with two inverted L-shaped stubs. High isolation is successfully acquired by adopting a double-Y-shaped stub and partial ground plane. To obtain compactness, the antenna printed on an FR4 substrate has two triangle corners cut off. To study the performance, the antenna is simulated by Ansoft HFSS 13.0, and then fabricated and tested. The measurement results demonstrate that the antenna has achieved impedance bandwidths (S 11 < −10 dB) of 790 MHz (3.08-3.87 GHz) and 880 MHz (4.7-5.58 GHz) with fractional bandwidths of 22.7% and 15.8%, respectively, which covers 3.45/4.9 GHz 5G bands. Meanwhile, the measurement results exhibit an enhanced isolation more than 20 dB, a low envelope correlation coefficient (ECC) below 0.001, an average gain better than 2 dB, and a stable radiation pattern within operation bands. In addition, the parameters including efficiency, DG, CCL, MEG, and TARC are also analysed. The simulated and measured results indicate that the proposed MIMO antenna can be applied to 5G communication system.

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“…Among these bands one can refer to UMTS (1.92-2.17 GHz), WiMAX (2.3-2.4, 2.5-2.69 and 3.4-3.6 GHz) and WLAN (2.4-2.48, 5.15-5.35 and 5.725-5.875 GHz). In [12], a dual-band MIMO antenna composed of two closely arranged symmetric monopole antennas with edge-to-edge distance of 5.3 mm is presented for WLAN applications. A tri-band E-shaped printed monopole antenna loaded with two U-shaped resonance paths of λ g /4 suitable for MIMO system operating at 2.4, 5.2 and 5.8 GHz is reported in [13].…”

Section: Introductionmentioning

confidence: 99%

A Penta-Band Printed Monopole Antenna for Mimo Applications

Mohammad-Ali-Nezhad¹,

Hassani²

2018

PIER C

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Abstract-An E-shaped printed monopole antenna with loaded resonant elements suitable for pentaband multi-input multi-output (MIMO) application is proposed. The simple E-shaped monopole antenna results in a single resonance, and by loading the vertical arm of the antenna with narrow slots and stubs, a multi-band antenna can be obtained. The slots so placed on the antenna create L-shaped resonance paths which are multiples of λ g /4, and stubs resonate at λ g /4. The antenna is designed for operation over the UMTS, WiMAX and WLAN frequencies 2.1, 2.5, 3.5, 5.2, 5.8 GHz. A two element array of such antennas with close spacing of λ g /15 is suitable for MIMO application. The array has low mutual coupling, low envelope correlation, high efficiency and good radiation patterns over all five frequency bands. Simulation and measurement results are compared and discussed.

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Design of a Dual-Band Mimo Antenna With High Isolation for Wlan Applications

Cited by 26 publications

References 17 publications

A Compact Multiband Mimo Antenna for Ieee 802.11 a/B/G/N Applications

A Compact Multiband Mimo Antenna for Ieee 802.11 a/B/G/N Applications

A CPW-Fed Dual-Band Mimo Antenna With Enhanced Isolation for 5g Application

A Penta-Band Printed Monopole Antenna for Mimo Applications

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