A Broadband Dual-Polarized Dual-OAM-Mode Antenna Array for OAM Communication

Liu, Baiyang; Cui, Yuehui; Li, RongLin

doi:10.1109/lawp.2016.2601615

Cited by 102 publications

(34 citation statements)

References 8 publications

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“…It is clear that the proposed antenna achieves multiple generated OAM modes over the wider bandwidth of 66.6%. Meanwhile, in comparison to array antennas [16][17][18][19], a single antenna to generate OAM modes is easier to design. In addition, the gain of the proposed antenna is higher than of that in [15] in terms of the single antenna structure for generating OAM vortex waves.…”

Section: Fabrication and Measurement Of The Dasamentioning

confidence: 99%

“…Recently, great efforts have been made toward to generating vortex waves in the radio domain. There are several typical methods, such as the spiral phase plate (SPP) [10,11], the parabolic antenna [12], the circular polarized (CP) patch antenna [13,14], the circular travelling-wave antenna [15], and phase-controlled antenna arrays [16][17][18][19]. However, it is still a challenge to generate multiple OAM modes using a single designed antenna.…”

Section: Introductionmentioning

confidence: 99%

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An Inner- and Outer-Fed Dual-Arm Archimedean Spiral Antenna for Generating Multiple Orbital Angular Momentum Modes

et al. 2019

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Orbital angular momentum (OAM) beams have attracted great attention owing to their excellent performances in imaging and communication. In this paper, a dual-arm Archimedean spiral antenna (DASA) is proposed to generate multiple OAM states with positive and negative values by feeding at the inner and outer ends, respectively. The topological charge of radiated vortex waves is reconfigurable by tuning the operating frequency. Dual-mode OAM states are generated at different working frequencies (l = ±1 at 3 GHz, l = ±2 at 4 GHz, and l = ±3 at 4.8 GHz). Both the simulation and measurement results demonstrate that OAM beams can be generated effectively by the DASA. In addition, a conical cavity is used to increase the gain of the proposed DASA for more than 5 dBi in comparison to the traditional cylindrical cavity. Furthermore, the qualities of the generated OAM modes by the proposed DASA have been evaluated at different operating frequencies of 3 GHz, 4 GHz, and 4.8 GHz, respectively. The OAM modes purities of l = −1, −2, −3, 1, 2, and 3 are predominate with the proportion of about 81%, 70%, 74%, 78%, 77%, and 75%, respectively. Our results demonstrate that the proposed DASA has great potentials in OAM multiplexing communication systems.

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Section: Fabrication and Measurement Of The Dasamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Inner- and Outer-Fed Dual-Arm Archimedean Spiral Antenna for Generating Multiple Orbital Angular Momentum Modes

et al. 2019

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“…Within the Microwave region of the electromagnetic spectrum, research in OAM has mainly focused on methods to generate OAM radiation patterns. OAM applications such as Radar to achieve super-resolution for target detection 15 and Secure Multiplexed Communications have been proposed 6 , 9 , 16 – 18 . Circular antenna arrays (CAA) 19 have also been proposed as one of the methods used to generate OAM radiation patterns.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Orbital Angular Momentum (Q-OAM) Generated by Quasi-Circular Array Antenna (QCA)

Fouda

Baum

Ghorbani

2018

Sci Rep

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Orbital Angular Momentum (OAM), as a property of Electromagnetic (EM) fields has recently been proposed for Radio and Microwave communications. This paper investigates a new class of OAM radiation patterns for Radio and Microwave applications, namely, Quasi-OAM radiation patterns, induced by a proposed Quasi-Circular Array Antenna (QCA). Simulations and Experiments show that Quasi-OAM waves can be induced and preserved in the far-field using the proposed QCA apertures and configurations, demonstrating non-integer dominant OAM modes corresponding to l = +1 and l = −1 with a directional quasi intensity and rotational 2π phase profiles. The proposed method in this work significantly reduces aperture size and cost by using Quasi-Circular Arrays of NQ = 5 and NQ = 6 elements in lieu of conventional OAM circular aperture arrays with N = 8 elements.

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“…However, due to the rotating nature of OAM, radiation patterns of all the OAM antennas are centrally-hollowed, leading to dispersed radiating power and low gain, compared with non-OAM antennas [3]. To deal with this problem, antenna arrays and reflectors are currently widely used in OAM antennas [4,5,6], which lead to large size and high profile. Except for these two kinds, the gain of current OAM antennas, especially the substrate-integrated ones, are usually as low as about 0 dB [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Double-OAM-mode resistor loaded microstrip antenna with a top dielectric layer

Dang¹,

Zhu²,

Yu³

et al. 2018

IEICE Electron. Express

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A double-Orbital-Angular-Momentum (OAM)-mode microstrip antenna is designed, simulated, fabricated and measured, which generates OAM with mode number l = 2 and 3 on 5 GHz by two resistor loaded microstrip rings respectively. For existing OAM antennas, structures like circular array, parabolic reflector and electromagnetic meta-surface are widely adopted, which are electrically large and hard to be integrated. However, the proposed antenna has a compact size and a low profile, which can be integrated in RF circuit as a component. To solve the problem of low gain in microstrip OAM antenna, parameters are optimised and a top dielectric layer is adopted, and its measured peak gain reaches 1.5 dB for l = 2 and 1.8 dB for l = 3. The measured frequency band, on which a near field vortex phase is observed and orbital angular momentum is generated, is 4.65-5.25 GHz for l = 2, and 4.5-5.2 GHz for l = 3. Besides, this antenna can multiplex more OAM modes by adopting more microstrip rings.

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A Broadband Dual-Polarized Dual-OAM-Mode Antenna Array for OAM Communication

Cited by 102 publications

References 8 publications

An Inner- and Outer-Fed Dual-Arm Archimedean Spiral Antenna for Generating Multiple Orbital Angular Momentum Modes

An Inner- and Outer-Fed Dual-Arm Archimedean Spiral Antenna for Generating Multiple Orbital Angular Momentum Modes

Quasi-Orbital Angular Momentum (Q-OAM) Generated by Quasi-Circular Array Antenna (QCA)

Double-OAM-mode resistor loaded microstrip antenna with a top dielectric layer

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