کنفرانس مهندسی برق ایران

صفحه اصلی / سی و دومین کنفرانس بین المللی مهندسی برق

Design and fabrication of a microstrip phase shifter based on liquid crystal

نویسندگان :

Sadegh Rajabi Doulataabadi¹ Seyed Hossein Hosseini Biuki² Farid Khoshkhati³ Seyed Abbas Jazayeri Moghadas⁴ Mohammad Masoudi Mohammadi⁵ Mehdi Ahmadi-Boroujeni⁶

1- Sharif university of technology 2- Sharif university of technology 3- University of Tehran 4- University of Tehran 5- University of Tehran 6- Sharif university of technology

کلمات کلیدی :

Phase Shifter،Liquid Crystal (LC)،Microstrip Line

چکیده :

Liquid crystal (LC) is an anisotropic material with electromagnetic (EM) characteristics that can be controlled by an applied external electric field. Recently, the application of LCs in reconfigurable devices for microwave and millimeter-wave applications has gained attention. In this paper, the effective refractive index of a common LC layer (E7) is first calculated as a function of the various applied voltages. Subsequently, a reconfigurable microstrip LC-based phase shifter (PS) is proposed at 10 GHz and, then is fabricated, and tested. For simplicity of the manufacture and cost-effectiveness, the design is entirely based on the printed circuit board (PCB) technology.