A 2-D electronic beam steering phased array for point-multipoint communication applications

Albani, Matteo; Cadili, T.; Maggio, Francesco; Gardelli, R.; Incorvaia, A.; Mollura, C.; Pomona, I.; Russo, M.; Sbarra, Elisa; Sorrentino, R.; Gatti, Roberto Vincenti

doi:10.1109/eumc.2007.4405523

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…The electronic beam steering is one of the most benefits of antenna array, where the main beam can be steered towards any given direction by only using phase shifters [2,3]. The electronic steering is widely used in the military area as well as in the commercial applications including radars and wireless communications [4,5], respectively. To enhance the performance of an antenna array, its side lobes level (SLL) should be suppressed and its directivity need to be maximised.…”

Section: Introductionmentioning

confidence: 99%

Efficient electronic beam steering method in time modulated linear arrays

Gassab

Azrar

Dahimene

et al. 2020

IET Microwaves, Antennas & Propagation

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An efficient electronic beam steering technique in time modulated linear array (TMLA) is proposed, where the first positive and negative sidebands are utilised to implement the electronic steering process. In this technique, new periodic time sequences are used, in which a positive‐ON, negative‐ON, and OFF durations are utilised to obtain high sufficient steering in TMLA. Furthermore, it is shown that by using these time sequences, the non‐steerable array pattern at the fundamental frequency and also the even sidebands can be eliminated and nulled to zero. In addition, the radiation power and the directivity of this proposed steered‐TMLA are formulated in their closed form. The genetic algorithm is implemented to optimise the steered‐TMLA by suppressing the remaining odd sidebands and increasing the power radiation at the first positive and negative sidebands.

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Section: Introductionmentioning

confidence: 99%

Efficient electronic beam steering method in time modulated linear arrays

Gassab

Azrar

Dahimene

et al. 2020

IET Microwaves, Antennas & Propagation

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“…However, the beam rotation has not been taken into account. In [30], a 2-D electronic beam steering array that allows a continuous steering of the main beam, both in the elevation and azimuth, where the scanning is slow, and the scanning range is very limited is presented. With electrical tilt, beam width, and azimuth control, smart antennas become the adaptive antennas, which can only follow relatively slow-varying traffic patterns [31].…”

Section: Impact Of Velocity On Mimo Beamformingmentioning

confidence: 99%

Efficient Multiple-Group Multiple-Antenna (MGMA) Scheme for High-Speed Railway Viaducts

Luo

Fang

Cheng

et al. 2013

IEEE Trans. Veh. Technol.

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The capacity of a multiple-input-multiple-output (MIMO) channel with N transmit and receive antennas for highspeed railways (HSRs) is analyzed based on the 3-D modeling of the line of sight (LOS). The MIMO system utilizes a uniform linear antenna array. Instead of increasing the number of antennas or simply changing the parameters of the antenna array, such as separation and geometry, the capacity gain can be obtained by adjusting the weights of multiantenna array groups, because there are few scatterers in strong LOS environments. On the other hand, it is hard to obtain the array gain of MIMO beamforming for HSRs because of drastic changes in the receiving angle when the train travels across E-UTRAN Node B. Without changing the antenna design of Long-Term Evolution systems, this paper proposes a multiple-group multiple-antenna (MGMA) scheme that makes the columns of such a MIMO channel orthogonal by adjusting the weights among MGMA arrays, and the stable capacity gain can be obtained. The value of weights depends on the practical network topologies of the railway wireless communication system. However, the reasonable scope of group number N is less than 6. In selecting N , one important consideration is the tradeoff between practical benefit and cost of implementation.Index Terms-High-speed railway (HSR) viaducts, multipleinput-multiple-output (MIMO) channel capacity, multiple group multiple antenna (MGMA).

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“…It can be compensated by using directional wireless communication or sensing to obtain effective operation by high-gain antennas with beam-steering controller. Recently, the wireless beam-steering can be realized using mechanical methods with an electrical motor or electronic method with phase shifter [5, 6].…”

Section: Introductionmentioning

confidence: 99%

Array of patch-antennas with meandering-gaps on optical modulator for wireless millimeter-wave beam-steering

Wijayanto

Kanno

Murata

et al. 2016

Int. J. Microw. Wireless Technol.

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An array of patch-antennas with meandering-gaps on an optical modulator is proposed for wireless millimeter-wave beam-steering through high-speed radio-over-fiber systems. Wireless millimeter-wave can be received by the array of patch-antennas and directly modulated to lightwave by the optical modulator. The wireless millimeter-wave can be steered using the meandering-gaps at the patch-antennas by controlling interaction between millimeter-wave and lightwave electric fields in electro-optic modulation. The basic operation and analysis of the proposed device are discussed. In the experiment, 5 × 5 antenna array in 40 GHz millimeter-wave bands was designed and realized for device characterization and demonstration to wireless millimeter-wave beam-steering. There were five variations of wireless millimeter-wave beam-steering for one-dimensional in xz- or yz-planes that can be obtained with wireless millimeter-wave steerable beams of about ±30°. Additionally, 25 variations of wireless beam-steering can be obtained for two dimension in xyz-space through orthogonal optical modulation. The proposed device is promising to be applied in millimeter-wave/tera-hertz bands for future directional wireless communication and sensing with high-speed and high-resolution operation.

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A 2-D electronic beam steering phased array for point-multipoint communication applications

Cited by 8 publications

References 4 publications

Efficient electronic beam steering method in time modulated linear arrays

Efficient electronic beam steering method in time modulated linear arrays

Efficient Multiple-Group Multiple-Antenna (MGMA) Scheme for High-Speed Railway Viaducts

Array of patch-antennas with meandering-gaps on optical modulator for wireless millimeter-wave beam-steering

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