Compact 1×2 and 2×2 Mimo Antennas With Enhanced Isolation for Ultrawideband Application

Li, Hui; Liu, Jinhai; Wang, Ziyang; Yin, Yingzeng

doi:10.2528/pierc16120805

Cited by 12 publications

(14 citation statements)

References 19 publications

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“…In Ref. , 2‐ and 4‐element MIMO antennas are proposed on 24 × 33 × 1 and 44 × 44 × 1 mm 3 , respectively. The operating band is from 2.75 to 11 GHz with a bandwidth of 8.25 GHz.…”

Section: Introductionmentioning

confidence: 99%

Defected ground structured compact MIMO antenna with low mutual coupling for automotive communications

Madhav

Yalavarthi

Anilkumar

2018

Micro & Optical Tech Letters

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This paper presents the analysis of a T‐stub loaded two element MIMO antenna placed in the vehicular environment at different positions on the vehicle. The MIMO antenna consists of two collinear printed dipoles as the elements. It operates for millimetre wave frequencies from 24.6–42.1 GHz and 50.1–52.5 GHz with a bandwidth of 17.5 GHz and 2.4 GHz respectively. The two elements of the MIMO antenna have the minimum mutual coupling of −89.5dB over the operating band. The envelop correlation coefficient (ECC) of the MIMO antenna is less than 0.01 throughout the band and the diversity gain (DG) is about 10. The MIMO antenna is placed at four different positions on the vehicle in virtual vehicular environment using ANSYS SAVANT. The measured results are matching with the simulation results and the proposed MIMO antenna can be used for future 5G communications for different automotive applications.

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“…In Ref. , 2‐ and 4‐element MIMO antennas are proposed on 24 × 33 × 1 and 44 × 44 × 1 mm 3 , respectively. The operating band is from 2.75 to 11 GHz with a bandwidth of 8.25 GHz.…”

Section: Introductionmentioning

confidence: 99%

Defected ground structured compact MIMO antenna with low mutual coupling for automotive communications

Madhav

Yalavarthi

Anilkumar

2018

Micro & Optical Tech Letters

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“…The blend of UWB technology and MIMO technology meets the expectation of modern wireless communication system, where the data traffic is increasing exponentially [1]. Several UWB MIMO antennas have been reported till date [1][2][3][4][5][6][7][8][9][10][11][12][13]. On the other hand, many UWB universal synchronous bus (USB) dongle antennas [14,15] have also been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…For achieving high isolation, different methods are reported in literature such as defected ground structures, neutralization line, open and short circuit stubs, use of via holes etc. [2,4,5,11,17,19]. However, the presence of these isolating circuits occupies further space in printed circuit board (PCB) of compact device such as USB dongle.…”

Section: Introductionmentioning

confidence: 99%

Compact Dual Band-Notched Uwb Mimo Antenna for Usb Dongle Application With Pattern Diversity Characteristics

Sipal¹,

Abegaonkar²,

Koul³

2018

PIER C

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In this paper a compact planar dual band-notched ultra-wideband (UWB) multiple input multiple output (MIMO) antenna is presented for universal synchronous bus (USB) dongle application with pattern diversity characteristic. The MIMO configuration has orthogonally placed elements with overall size of 16 × 37.6 mm 2 , and the common ground plane of the MIMO antenna is further extended by 20 mm for its practical use. The measured and simulated reflection coefficients of the antenna show good impedance bandwidth matching over the range from 3 GHz to 12 GHz excluding the dual notched bands. Both elements show good band-reject property at the notched bands. The simulated results are verified through measurements and calculations. Moreover, absence of decoupling network makes circuit less complex and very compact. Radiation pattern of the MIMO antenna is almost omnidirectional. Furthermore, diversity performance of MIMO antenna is validated with its envelope correlation coefficient (ECC) and pattern diversity characteristic. These characteristics demonstrate its candidacy as a compact dual band-notched UWB MIMO antenna for USB dongle application.

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“…The efficient designing of UWB MIMO antenna is characterized by high isolation/less coupling, high diversity gain, pattern diversity, low envelope correlation coefficient (ECC), low capacity loss, good individual antenna gain and high efficiency for the entire UWB radiating spectrum. Therefore, several UWB MIMO antennas have been proposed in recent years to achieve good isolation between antenna elements [3][4][5][6][7]. Two orthogonal monopole antenna elements consist of two long ground stubs and a short ground strip to increase the isolation is reported in [3].…”

Section: Introductionmentioning

confidence: 99%

Two Element Band-Notched Uwb Mimo Antenna With High and Uniform Isolation

Yadav¹,

Abegaonkar²,

Koul³

et al. 2018

PIER M

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Abstract-In this paper, a single notched band at 5.2 GHz with complementary split ring resonator (CSRR) ultra-wideband (UWB) antenna and its implementation in designing of two-element multipleinput multiple-output (MIMO) with high and uniform isolation are experimentally demonstrated. The proposed UWB MIMO consists of a T-shaped stub in ground plane in between antenna elements of the size of λ at3.1 GHz /4 to achieve minimum 20 dB isolation, which is almost uniform in entire UWB band. The size of the UWB MIMO antenna is 0.31λ at3.1 GHz × 0.434λ at3.1 GHz × 0.008λ at3.1 GHz mm 3 , and it is printed on an RT/duroid 5880 substrate (ε r = 2.2, tan δ = 0.0009), which leads to good gain and high total efficiency of the antenna in operating bands. The simulated and measured results show good agreement for the impedance bandwidth (|S 11 | < −10 dB) and isolation (|S 21 | < −20 dB) in most of the operating band, excluding the notched band at 5.2 GHz in UWB range. The simulated, measured and calculated MIMO antenna diversity parameters prove that the antenna is suitable for UWB MIMO systems.

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Compact 1×2 and 2×2 Mimo Antennas With Enhanced Isolation for Ultrawideband Application

Cited by 12 publications

References 19 publications

Defected ground structured compact MIMO antenna with low mutual coupling for automotive communications

Defected ground structured compact MIMO antenna with low mutual coupling for automotive communications

Compact Dual Band-Notched Uwb Mimo Antenna for Usb Dongle Application With Pattern Diversity Characteristics

Two Element Band-Notched Uwb Mimo Antenna With High and Uniform Isolation

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