Work

Generation of dual‐mode PS‐OAM beams using a Vivaldi antenna array

Year: 2024

Type: article

Abstract: The paper proposes a single antenna that can generate dual‐mode plane spiral orbital angular momentum (PS‐OAM) beams. Six Vivaldi antennas placed in a tangential circular array make up the antenna, and the antenna is etched onto a substrate material and has a flat design, allowing for easy integration with other system components. The neighbouring ports of the antenna elements have phase differences, so phase‐shifting in the feeding network is unnecessary. When fed with the same phase and amplitude, the antenna can produce PS‐OAM beams with mode +1 at 7 GHz and mode +2 at 14 GHz, and the measured purity is 80.6% and 63%, respectively. The method may provide a new way to produce multi‐mode orbital angular momentum.

Source: Micro & Nano Letters

DOI: 10.1049/mna2.70001

Authors: Na Li, Guirong Feng, Lingling Jiao, Ping Li, Xiaowei Shi

Institutions: Xidian University, Xi’an University of Posts and Telecommunications

Language: English

Topic: Antenna Design and Analysis

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,200

Funder: National Natural Science Foundation of China