Two-port hexagon shaped MIMO microstrip antenna for UWB applications integrated with double stop bands for WiMax and WLAN

Agarwal, Megha; Dhanoa, Jasdeep Kaur; Khandelwal, Mukesh Kumar

doi:10.1016/j.aeue.2021.153885

Cited by 19 publications

(14 citation statements)

References 24 publications

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“…Frequency band elimination functionality in various UWB MIMO antennas is demonstrated in Modak and Khan 7 and Kumar and Kumar 11 . Band notching features are achieved by adding a slit, slot, or stub into UWB MIMO, as demonstrated in previous studies 12–18 . The embedding of parasitic components onto the MIMO antenna system improves isolation, 19,20 metamaterial loading, 21–26 defected ground structures, 27,28 neutralization line, 29,30 and other different techniques 31–33 .…”

Section: Introductionmentioning

confidence: 90%

“…11 Band notching features are achieved by adding a slit, slot, or stub into UWB MIMO, as demonstrated in previous studies. [12][13][14][15][16][17][18] The embedding of parasitic components onto the MIMO antenna system improves isolation, 19,20 metamaterial loading, [21][22][23][24][25][26] defected ground structures, 27,28 neutralization line, 29,30 and other different techniques. [31][32][33] Kumar et al 12 proposes a miniaturized two-port dual-notch band MIMO antenna with isolation of 18 dB.…”

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confidence: 99%

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A compact highly isolated two‐ and four‐port ultrawideband Multiple Input and Multiple Output antenna with Wireless LAN and X‐band notch characteristics based on Defected Ground Structure

Kumar

Ali

Pai

2022

Int J Communication

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A novel two-and four-port antenna structure are proposed to achieve improved isolation and operate in the ultrawideband (UWB) frequency range.The projected designs comprise a hybrid circular and rectangular embedded UWB antenna with a partial ground plane. The alteration of the radiating and ground planes modifies the current flow and aids in realizing a broader bandwidth. The dual-band notches are created on UWB using slot and stubs. The U-shape slot on the feedline neutralizes the current flow at 5.2 GHz, and a pair of symmetrical H-shape stubs across the feedline couples the current flow from the feedline to stubs at 7.4 GHz frequency, and negligible current reaches the radiator. The dual-band notch UWB antenna is reproduced to create two-port and four-port MIMO antennas with a less than quarter wavelength spacing. Using a deficient ground structure, better isolation between the interelements is achieved. The projected two-and four-port design has overall physical geometry of 0.2λ Â 0.4λ Â 0.02λ and 0.5λ Â 0.4λ Â 0.02λ and provides a measured impedance bandwidth between 3.3-12.8 and 3.1-12 GHz, respectively. The distinctive feature of both antenna designs is incorporating simple and effective defective ground structures as decoupling structures in the ground plane to generate better than 25 dB isolation across the operational spectrum. The current between the interelement is suppressed via the ground plane, leading to mutual coupling reduction. In addition, complete MIMO diversity parameters and time-domain characteristics are explored, and the findings show that the proposed designs are appropriate for wireless applications.

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Section: Introductionmentioning

confidence: 90%

mentioning

confidence: 99%

A compact highly isolated two‐ and four‐port ultrawideband Multiple Input and Multiple Output antenna with Wireless LAN and X‐band notch characteristics based on Defected Ground Structure

Kumar

Ali

Pai

2022

Int J Communication

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“…1. The proposed antenna covers multiple bands, including UWB, whereas other antennas reported in the literature [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53] operate on a single wideband frequency. 2.…”

Section: On-car Scenariomentioning

confidence: 99%

“…2. The proposed antenna requires less space than the antenna configurations reported in [39][40][41][42][44][45][46][47][48][49][50][51][52][53][54][55]. 3.…”

Section: On-car Scenariomentioning

confidence: 99%

Quad-Port Multiservice Diversity Antenna for Automotive Applications

Kannappan

Palaniswamy

Wang

et al. 2021

Sensors

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A quad-element multiple-input-multiple-output (MIMO) antenna with ultra-wideband (UWB) performance is presented in this paper. The MIMO antenna consists of four orthogonally arranged microstrip line-fed hexagonal monopole radiators and a modified ground plane. In addition, E-shaped and G-shaped stubs are added to the radiator to achieve additional resonances at 1.5 GHz and 2.45 GHz. The reliability of the antenna in the automotive environment is investigated, with housing effects taken into account. The housing effects show that the antenna performs consistently even in the presence of a large metal object. The proposed MIMO antenna has potential for various automotive applications, including vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-everything (V2X), intelligent transport system (ITS), automatic vehicle identifier, and RFID-based electronic toll collection.

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“…As for these overlapping frequency bands, a variety of notch band UWB antennas have been designed to form resistance characteristics in such corresponding frequency bands, including WiMAX, WLAN and X-Band. Notching techniques can be achieved by several methods, such as slotting the antenna structure [22,23,24], including U-shaped slot [25], H-shaped slot [26], etc. In [27], the notch property is realized by introducing an inverted U-shaped parasitic resonator.…”

Section: Introductionmentioning

confidence: 99%

A butterfly-like slot UWB antenna with WLAN band-notch characteristics for MIMO applications

Wang

Chen

et al. 2022

IEICE Electron. Express

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An ultra-wideband (UWB) antenna with butterfly-like coupling slot for 4-element multiple-input multiple-output (MIMO) applications is introduced in this letter. In the design of the UWB antenna unit, the proposed butterfly-like slot is adopted to improve the impedance matching and achieves the operating bandwidth of 3-12 GHz. At the same time, a symmetrical T-shaped meandering strip etched on the ground and connecting with the patch through via produces a notch at 5.1-5.37 GHz, which suppresses the signal interference in WLAN band simultaneously. The results show that the proposed antenna array consisting of four orthogonal elements realized good isolation of lower than −15 dB without any additional decoupled structures. Also, the proposed 2 × 2 MIMO design exhibited good diversity performance in terms of envelop correction coefficient (ECC<0.015), diversity gain (DG>9.92 dB). The gain reaches a maximum value of 6.8 dBi. Simulated and Measured results are in good accordance. All of this reveals the effectiveness of the proposed antenna in MIMO system and it can be suggested as a suitable candidate for UWB applications.

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Two-port hexagon shaped MIMO microstrip antenna for UWB applications integrated with double stop bands for WiMax and WLAN

Cited by 19 publications

References 24 publications

A compact highly isolated two‐ and four‐port ultrawideband Multiple Input and Multiple Output antenna with Wireless LAN and X‐band notch characteristics based on Defected Ground Structure

A compact highly isolated two‐ and four‐port ultrawideband Multiple Input and Multiple Output antenna with Wireless LAN and X‐band notch characteristics based on Defected Ground Structure

Quad-Port Multiservice Diversity Antenna for Automotive Applications

A butterfly-like slot UWB antenna with WLAN band-notch characteristics for MIMO applications

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