Open AccessDesign and Simulation of A Dual-Frequency Multi-Mode Vortex Microstrip Array Antenna
Author(s) -
Pengrong Mao,
Canguan Gao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/5/052035
Subject(s) - microstrip antenna , patch antenna , acoustics , antenna (radio) , microstrip , physics , antenna measurement , folded inverted conformal antenna , antenna factor , computer science , electronic engineering , optics , engineering , telecommunications
In order to improve the communication capacity and spectrum utilization, a design scheme of dual-frequency and multi-mode vortex microstrip array antenna is proposed. This antenna is composed of 8 rectangular microstrip patches, and 8 elements with the same structure are distributed at equal intervals on a concentric circle. The optimal structure of the antenna is determined by modeling 3D electromagnetic field simulation software and optimizing patch size. Simulation results show that the antenna has good impedance matching at the resonance point of 1.9 GHz and 2.45 GHz. When different phase excitation is applied to each element, the antenna produces seven effective vortex electromagnetic waves with different modes.