A Miniaturized Dual-Orbital-Angular-Momentum (OAM)–Mode Helix Antenna

Dang, Weiguo; Zhu, Yanan; Yu, Yang; Zuo, Kaiwei

doi:10.1109/access.2018.2873082

Cited by 18 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5(a). Reference [63] proposed a miniaturized nested three-dimensional helical antenna, as shown in Fig. 5(b), using a flexible dielectric material to load the helical antenna, and realizing double-loop nesting under the premise of ensuring a certain degree of isolation, which can be used in 4.80-5.20 GHz generates vortex electromagnetic waves with OAM mode numbers of 2 and 3, realizing multiplexing of OAM modes in the same frequency band.…”

Section: Fig 4 Structure and Beam Pattern Of Traveling Wave Antennamentioning

confidence: 99%

Design and Performance Evaluation of OAM-Antennas: A Comparative Review

Saraereh

2023

IEEE Access

View full text Add to dashboard Cite

For many communication systems, including wireless networks, mobile, satellite, radar, remote sensing, and many more applications, antenna arrays are very necessary. Utilizing effective beamforming techniques, antenna arrays have recently played a major part in driving data rates and system capacity to extremely high levels. The beamforming capabilities and system performance are both greatly influenced by the array configuration. Numerous array structures, including linear, two-dimensional, circular, conical, cylindrical, spherical, and even non-uniform array shapes, can be used in different applications. Modern communication systems pay a lot of attention to reconfigurable antennas because of the many applications they may serve and the added functionality they provide. A single structure that has the ability to change between one or a number of features, such as frequency, pattern, and polarization, is referred to as a reconfigurable antenna. Utilizing a specific circular phased microstrip antenna array, the orbital angular moment (OAM) vortex electromagnetic wave is created, allowing for more effective and dependable data transmission. When propagating, the vortex electromagnetic wave has a spiral phase wavefront structure, and its many OAM modes are orthogonal to one another. The helical antenna offers the benefits of light weight, small size, and excellent circular polarization when compared to other OAM radio producing techniques. This paper reviews various state-of-the-art antennas for 5G applications. Specifically, the single microstrip, array, traveling wave and metasurface antennas have been discussed and their important aspects were elaborated. Finally, the applications and future prospects were described.

show abstract

Section: Fig 4 Structure and Beam Pattern Of Traveling Wave Antennamentioning

confidence: 99%

Design and Performance Evaluation of OAM-Antennas: A Comparative Review

Saraereh

2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The first suggestion was to generate multimode OAM beams using concentric UCA antennas. [13][14][15] Dualmode OAM beams are generated through a dual-ring UCA antenna, which integrates two sets of UCA antennas with independent feed networks. 16 Nevertheless, as the mode orders increase, the complexity of feed networks and the number of units also grows.…”

Section: Introductionmentioning

confidence: 99%

“…Different methods have been suggested by researchers to achieve multimode OAM beams. The first suggestion was to generate multimode OAM beams using concentric UCA antennas 13–15 . Dual‐mode OAM beams are generated through a dual‐ring UCA antenna, which integrates two sets of UCA antennas with independent feed networks 16 .…”

Section: Introductionmentioning

confidence: 99%

Mode reconfigurable OAM helical array antenna for higher mode generation

Zhang,

Yang,

et al. 2024

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this paper, an orbital angular momentum (OAM) mode reconfigurable antenna based on a uniform circular array (UCA) is presented. The phase superposition method is presented to overcome the limitation of the number of array units on the mode order in the conventional four‐element UCA antenna, which is limited to generating first‐order OAM beams. The unit phase is introduced by a bifilar helical antenna in this method, and the unit phase is superimposed with the feed phase of the UCA to enable the generation of 3rd‐order OAM beams from the four‐element UCA. At the same time, the DC signal‐controlled feed network assigns three distinct feed phases to the UCA, which realizes the reconfigurability of the three OAM beams. To achieve mode reconfigurability, 20 p‐i‐n diodes were integrated as switches in the feed network for controlling the ON/OFF status of p‐i‐n diodes in the feed network using DC signals. Finally, simulated and measured results show that three OAM beams (lz = −1, −2, and −3) have been generated in the frequency band from 10.6 to 11.8 GHz.

show abstract

“…In 2007, Thidé et al, applied OAM to a radiofrequency (RF) field [12]. Subsequently, research has been conducted on the role of OAM in RF vortex beam generation [13][14][15][16][17], wireless communication [18][19][20][21], radar imaging [22][23][24][25], and detection and recognition [26].…”

Section: Introductionmentioning

confidence: 99%

Scattering Field Intensity and Orbital Angular Momentum Spectral Distribution of Vortex Electromagnetic Beams Scattered by Electrically Large Targets Comprising Different Materials

Sun,

Liu,

Guo

2024

Remote Sensing

View full text Add to dashboard Cite

In this study, we obtained the intensity and orbital angular momentum (OAM) spectral distribution of the scattering fields of vortex electromagnetic beams illuminating electrically large targets composed of different materials. We used the angular spectral decomposition method to decompose a vortex beam into plane waves in the spectral domain at different elevations and azimuths. We combined this method with the physical optics algorithm to calculate the scattering field distribution. The OAM spectra of the scattering field along different observation radii were analyzed using the spiral spectrum expansion method. The numerical results indicate that for beams with different parameters (such as polarization, topological charge, half-cone angle, and frequency) and targets with different characteristics (such as composition), the scattering field intensity distribution and OAM spectral characteristics varied considerably. When the beam parameters change, the results of scattering from different materials show similar changing trends. Compared with beams scattered by uncoated metal and dielectric targets, the scattering field of the coating target can better maintain the shape and OAM mode of beams from the incident field. The scattering characteristics of metal targets were the most sensitive to beam-parameter changes. The relationship between the beam parameters, target parameters, the scattering field intensity, and the OAM spectra of the scattering field was constructed, confirming that the spiral spectrum of the scattering field carries the target information. These findings can be used in remote sensing engineering to supplement existing radar imaging, laying the foundation for further identification of beam or target parameters.

show abstract

A Miniaturized Dual-Orbital-Angular-Momentum (OAM)–Mode Helix Antenna

Cited by 18 publications

References 10 publications

Design and Performance Evaluation of OAM-Antennas: A Comparative Review

Design and Performance Evaluation of OAM-Antennas: A Comparative Review

Mode reconfigurable OAM helical array antenna for higher mode generation

Scattering Field Intensity and Orbital Angular Momentum Spectral Distribution of Vortex Electromagnetic Beams Scattered by Electrically Large Targets Comprising Different Materials

Contact Info

Product

Resources

About