Beam-Tilting Endfire Antenna Using a Single-Layer FSS for 5G Communication Networks

Mantash, Mohamad; Kesavan, Arun; Denidni, Tayeb A.

doi:10.1109/lawp.2017.2772222

Cited by 69 publications

(40 citation statements)

References 19 publications

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“…In these scenarios beamforming approaches [38], [39] should be able to exploit secondary MPCs which are not obstructed. Thus, given the high losses and potential obstructions in this band, high gain beamforming antennas would be required.…”

Section: Discussionmentioning

confidence: 99%

An Indoor Channel Model for High Data-Rate Communications in D-Band

Pometcu

D’Errico

2020

IEEE Access

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This paper proposes a measurement based modeling of D-band indoor channels. Different indoor environments were considered including Line-of-Sight (LOS) and Non Line-of-Sight (NLOS) conditions. Double steering at the transmitter and receiver sides was performed allowing angular characterization of the channel. Path loss, delay spread, angular spread, intra-and inter-cluster characteristics were also modeled. These characteristics were then compared to the ones obtained in other millimeter wave bands for the same environment.

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Section: Discussionmentioning

confidence: 99%

An Indoor Channel Model for High Data-Rate Communications in D-Band

Pometcu

D’Errico

2020

IEEE Access

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Section: Mmwave Radio Signals Have Propagation Characteristics Such Amentioning

confidence: 99%

“…A frequency-selective surface (FSS) capable of assisting in beam tilt for a fixed beamformer with the frequency of operation 28-31 GHz is given in [72]. Generally, such FSS structures are scalable and higher frequency operation can also be achieved using the proof-of-concept module given in [72]. A positive-intrinsicnegative (p-i-n) diode-based beam switching system operating at 28 GHz is elaborated in [73] that can be used as a fixed beamformer.…”

Section: Mmwave Radio Signals Have Propagation Characteristics Such Amentioning

confidence: 99%

Beamformer development challenges for 5G and beyond

Abbasi

Fusco

2020

Antennas and Propagation for 5G and Beyond

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Antenna's beamforming technology [1] is vital in the utilization of the microwave and millimeter-wave (mmWave) frequency bands for the fifth-generation (5G) communication technology, and beyond, applications that include the sixth generation (6G), Internet of Things and Industry 4.0 [2,3]. Antenna beamforming can be defined as the ability of an antenna array to steer the maximum radiation toward a prescribed direction, or, conversely, the ability of the antenna array to estimate the direction of arrival (DOA) of an impinging signal. Beamforming is generally achieved by using multiple antennas, spatially colocated to either function as an independent radiator or as a unit cell in larger array arrangements. Recently, the term multiple-input-multiple-output (MIMO) has been used in conjugation with the beamforming technology since it also involves multiple antenna systems, thus linking it to the beamforming technology [4]. When the number of antennas used in the MIMO operation becomes very large, it is generally termed massive MIMO technology [5]. Different beamforming concepts are used for the two frequency spectrum classifications in cellular technology, i.e., sub-6 GHz and mmWave. The majority of beamformer challenges at sub-6 GHz are already resolved, and prototypes are now available [6]; however, there are still major fundamental challenges that engineers face while developing beamformers for use in the mmWave bands, i.e., >28 GHz. Challenges include, but are not limited to, high path loss, power generation, adaption to account for realistic channel estimation, hardware impairments, energy leakage in circuits, high development cost, spatial-temporal channel variations, signal blockages due to the presence of obstacles such as beamformer casing, user body and hand. Also, multiuser MIMO techniques are not easily implementable in mmWave frequencies. In addition to this, beam coordination at transmitter and receiver antenna systems especially in mmWave spectrum is very challenging. In this chapter, we will first classify the beamformers based on the system architecture, operational frequency

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“…To demonstrate the effectiveness of the proposed 3D FSS unit‐cell structure as a polarizer, a single‐layer 4 × 4 helical FSS array (total size = 22 mm × 22 mm), forming a 3D polarizer, is placed 5 mm in the front of a directive Yagi‐Uda antenna as shown in Figure C. The Yagi‐Uda antenna is optimized to work at 30 GHz, and it is made of a driven dipole and 10 directors printed on the top layer of a RO4003C substrate ( εr = 3.38, tan δ = 0.0027, and h = 0.508 mm). The design and the parameters of the CP end‐fire antenna using a 3D polarizer are presented in Figure B.…”

Section: Cp End‐fire Antenna Using 3d Polarizer Designmentioning

confidence: 99%

3D FSS polarizer for millimeter‐wave antenna applications

Mantash

Denidni

2019

Int J RF Microw Comput Aided Eng

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In this article, a novel wideband polarizer is presented, to convert the linear polarization of a directive antenna into circular polarization. This innovative polarizer is based on a 3D frequency selective surface (FSS) and consists of an array of 4×4 metal axial‐mode helices. The proposed broadband polarizer operates in the 28 to 31 GHz frequency band. To demonstrate the principle, the 3D FSS is applied to a linearly polarized Yagi‐Uda antenna operating in the same millimeter‐wave frequency band. The measured and simulated results, by integrating the proposed 3D polarizer in front of the antenna, show that an axial ratio smaller than 3 dB is obtained over a wide bandwidth with gain enhancement.

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Beam-Tilting Endfire Antenna Using a Single-Layer FSS for 5G Communication Networks

Cited by 69 publications

References 19 publications

An Indoor Channel Model for High Data-Rate Communications in D-Band

An Indoor Channel Model for High Data-Rate Communications in D-Band

Beamformer development challenges for 5G and beyond

3D FSS polarizer for millimeter‐wave antenna applications

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