TY - GEN
T1 - Design of Dual-frequency Reflectarray Using Particle Swam Optimization
AU - Ohsawa, Takuto
AU - Maruyama, Tamami
AU - Omiya, Manabu
AU - Suematsu, Noriharu
N1 - Funding Information:
This work was partially supported by Collaborative R&D Promotion Project of Information Initiative Center, Hokkaido University, Japan, the Cooperative Research Project Program of the RIEC, Tohoku University and JSPS KAKENHI Grant Number C17K06452. We are deeply grateful for the joint use of METLAB in Kyoto University, and Prof. Y. Mishima of National Institute of Technology, Hakodate College.
Publisher Copyright:
© 2018 KIEES.
PY - 2019/1/25
Y1 - 2019/1/25
N2 - This paper proposes a novel dual frequency reflectarray such as the electric field of the reflectarray elements have not only the desired reflection phase but also the same amplitude among them.. In design of a reflectarray, we employ the particle swam optimization (PSO) which simultaneously achieves desired amplitude and phase shift at both frequencies of 1.0 GHz and 1.5 GHz. Two-layer structure is adopted to increase design freedom. In the two layers, the presence or not of a 4 by 4 metallic patch on mesh is determined by PSO, and moved in axial symmetry about x- and y-axes. As a result, we develop a dual frequency reflectarray with which the plane wave is radiated in direction of -30 degrees when the angle of incidence from illuminator is 0 degree.
AB - This paper proposes a novel dual frequency reflectarray such as the electric field of the reflectarray elements have not only the desired reflection phase but also the same amplitude among them.. In design of a reflectarray, we employ the particle swam optimization (PSO) which simultaneously achieves desired amplitude and phase shift at both frequencies of 1.0 GHz and 1.5 GHz. Two-layer structure is adopted to increase design freedom. In the two layers, the presence or not of a 4 by 4 metallic patch on mesh is determined by PSO, and moved in axial symmetry about x- and y-axes. As a result, we develop a dual frequency reflectarray with which the plane wave is radiated in direction of -30 degrees when the angle of incidence from illuminator is 0 degree.
KW - Dual frequency
KW - Multi-band
KW - PSO
KW - Particle swarm optimization
KW - Reflectarray
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M3 - Conference contribution
AN - SCOPUS:85062789997
T3 - ISAP 2018 - 2018 International Symposium on Antennas and Propagation
BT - ISAP 2018 - 2018 International Symposium on Antennas and Propagation
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Symposium on Antennas and Propagation, ISAP 2018
Y2 - 23 October 2018 through 26 October 2018
ER -