Development of wide scanning angle for millimeter wave beam by liquid crystal quasi-optical device with subwavelength structure

2016 Fiscal Year Final Research Report

• Project/Area Number: 26390107
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: General applied physics
• Research Institution: Akita National College of Technology
• Principal Investigator: TANAKA Masaki 秋田工業高等専門学校, その他部局等, 准教授 (60353231)
• Co-Investigator(Renkei-kenkyūsha): KAWAMURA Marenori 秋田大学, 大学院理工学研究科, 准教授 (90312694) ; ITO Keiichi 秋田工業高等専門学校, 創造システム工学科, 准教授 (20290702)
• Research Collaborator: Susumu Sato 秋田大学, 名誉教授
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 液晶 / ミリ波

Outline of Final Research Achievements

Millimeter wave has been applied to the automotive radar and full-body scanner in the field of sensing. However, mechanical scanning which is generally used as a scanning system of the millimeter wave has problems such as cost and space. Liquid crystal materials that have dielectric anisotropy and large electro-optical effects, are candidates for microwave and millimeter-wave modulation devices.
In this study, we proposed a liquid crystal / dielectric multilayer structure in which liquid crystals and dielectrics are alternately stacked. Millimeter-wave deflection properties are calculated and estimated for design of the millimeter-wave deflection devices.

Free Research Field

電子工学