Performance of Dualbeam MIMO for Millimeter Wave Indoor Communication Systems

Kirthiga, S; Jayakumar, M

doi:10.1007/s11277-013-1506-0

Cited by 22 publications

(9 citation statements)

References 20 publications

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“…The dual-beam antennas are especially attractive in that they can be used for spatial diversity applications [15]. These antennas are used for scenarios where adjacent channels interference effects need minimization [16].…”

Section: Introductionmentioning

confidence: 99%

A Novel Snowflake Fractal Antenna for Dual-Beam Applications in 28 GHz Band

Ullah

Tahir

2020

IEEE Access

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A wideband snowflake antenna for 28 GHz millimeter-wave communications is proposed. The antenna has a size of 8×5 mm 2 , fabricated on ultra-thin 0.254 mm substrate. The antenna consists of four small hexagons surrounding a bigger hexagon in order to attain broadband characteristics. Bandwidth response of the antenna is between 25.28-29.04 GHz (13.43% @ 28 GHz), having 3.12 dBi gain and more than 80% of radiation as well as total efficiency. The antenna specific structure is designed such that it gives dual beam over its entire bandwidth without a noticeable shift in its beam directions. For enhanced gain performance, its 4-element array (of size 32×12 mm 2) has been fabricated separately to increase its gain upto 10.12 dBi at 28 GHz. The proposed dual-beam antenna and its array has been modelled on thin Rogers substrate to show that its application in millimeter-wave communication equipment is viable. INDEX TERMS 5G, millimeter-wave, 28 GHz, broadband, dual-beam antennas, arrays, smartphones.

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Section: Introductionmentioning

confidence: 99%

A Novel Snowflake Fractal Antenna for Dual-Beam Applications in 28 GHz Band

Ullah

Tahir

2020

IEEE Access

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“…However, the requirements of multiple antenna elements and the phase shifter for each antenna of this method make the structure usually complex and the total size typically large. To simplify the structure, a dual-beam MIMO (Multi-input-multioutput) antenna without phase feed configuration has been proposed in [9]. Other approaches to produce dual-beam include employing the leaky-wave antennas and the U-slot antennas [10]- [12].…”

Section: Introductionmentioning

confidence: 99%

A Symmetrical Dual-Beam Bowtie Antenna With Gain Enhancement Using Metamaterial for 5G MIMO Applications

Jiang

et al. 2019

IEEE Photonics J.

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A symmetrical dual-beam end-fire bowtie antenna with gain enhancement is achieved by integrating three pairs of metamaterial (MTM) arrays for 5G MIMO applications. The first pair of MTM array with high refractive index (HRI) are deployed to form a wide beam antenna. The second pair of HRI MTM array are arranged along the end-fire direction (x-direction) in front of the radiators in order to split the single wide beam into dual beam. Besides, the third pair of anisotropic MTM array with HRI along x-direction and near zero refractive along y-direction are incorporated in front of the second pair of MTM array to improve the gain performance. The proposed technique is verified by both the full-wave electromagnetic simulation and experiment, and the simulated and measured results agree very well with each other. Moreover, the measured results reveal that the main beam directions of the proposed antenna point to ±30 • with respect to the end-fire direction (0 •) over 24.25-27.5 GHz, with a maximum gain of 7.4 dBi at 26 GHz and a 4.2 dB gain improvement compared to the wide beam antenna.

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“…However, the aforementioned design works at the single frequency band, which restricts its application. In fact, it is imperative to apply a multiple input, multiple output (MIMO) antenna operating over wireless local area network (WLAN) and WiMAX frequency bands to improve the power gain and increase the channel capacity of communication links [6,7]. To implement that, Dadgarpour et al [8] have deployed an array of meander-line H-shaped unit cells with different dimensions, at 2.5 and 5.5 GHz, integrated in front of the dual band bowtie antenna in the azimuth plane to tilt the direction of the beam in the azimuth plane by 17°.…”

Section: Introductionmentioning

confidence: 99%

Dual band high‐gain antenna with beam switching capability

Dadgarpour

Kishk

Denidni

2017

IET Microwaves, Antennas & Propagation

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This study presents an antenna with dual‐band and high‐gain for a wireless local area network and Worldwide Interoperability for Microwave Access applications operating over 3.4–3.6 and 5–6 GHz bands. The proposed antenna is composed of three double‐sided bowtie radiators loaded by a 2 × 6 array of double split rectangular (DSR) unit cells, which leads to a considerable gain enhancement. The DSR unit cell acts as an equivalent medium with a high refractive index operating at 3.5 and 5.5 GHz. By loading 2 × 6 arrays of proposed unit cells in the off‐axis of the bowtie antenna in the H‐plane, the main beam direction is tilted by 17° and 20° at the 3.5 and 5.5 GHz bands, respectively. A prototype of the bowtie antenna loaded with asymmetric unit cells in the H‐plane is fabricated and measured. The measured results confirm the deflection of the main beam direction by 17° at 3.5 and 20° at 5.5 GHz with a peak gain of 10 and 10.5 dBi, respectively.

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Performance of Dualbeam MIMO for Millimeter Wave Indoor Communication Systems

Cited by 22 publications

References 20 publications

A Novel Snowflake Fractal Antenna for Dual-Beam Applications in 28 GHz Band

A Novel Snowflake Fractal Antenna for Dual-Beam Applications in 28 GHz Band

A Symmetrical Dual-Beam Bowtie Antenna With Gain Enhancement Using Metamaterial for 5G MIMO Applications

Dual band high‐gain antenna with beam switching capability

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