Open AccessDesign of a Multimode OAM Vortex Electromagnetic Microstrip Array Antenna
Author(s) -
Pengrong Mao,
Canguan Gao
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/4/042127
Subject(s) - antenna factor , coaxial antenna , antenna measurement , patch antenna , antenna efficiency , antenna (radio) , microstrip antenna , dipole antenna , acoustics , monopole antenna , optics , radiation pattern , physics , antenna aperture , computer science , telecommunications
On the basis of the characteristics of electromagnetic wave orbital angular momentum can improve spectrum efficiency, this paper proposes a low profile, more OAM models design of antenna. The antenna subject selection is made of glass fiber epoxy resin substrate, using phased array feed technology under the condition of the limited antenna unit number achieved by each antenna feed different phase excitation. By adjusting the position of the feeding point, the matching of the input impedance of the antenna is improved and the optimal structure of the antenna is determined. The simulation results show that the antenna achieves good impedance matching at the center frequency of 2.45GHz and generates 7 kinds of vortex electromagnetic beams with different OAM modes. The antenna has the characteristics of small size, light weight and low profile, which provides a novel antenna structure for the design of communication terminal antenna array.