Design and Experimental Verification of a Liquid Crystal-Based Terahertz Phase Shifter for Reconfigurable Reflectarrays
| Autor: | Guangsheng Deng, Zhiping Yin, Ying Li, Hongbo Lu, Sheng Gao, Weien Lai, Jun Yang, Peng Wang |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Radiation Materials science business.industry Terahertz radiation Biasing Substrate (electronics) Condensed Matter Physics 01 natural sciences 010309 optics Dipole Amplitude Liquid crystal 0103 physical sciences Optoelectronics Classical electromagnetism Electrical and Electronic Engineering business Instrumentation Phase shift module |
| Zdroj: | Journal of Infrared, Millimeter, and Terahertz Waves. 41:665-674 |
| ISSN: | 1866-6906 1866-6892 |
| Popis: | A liquid crystal (LC)-based double dipole terahertz phase shifter is proposed. The block model is utilized in simulations to analysis the influence of inhomogeneity of the LC substrate. The sensitive parameters of the double dipole are simulated and analyzed. An array consisting of 30 × 30 patch elements is designed and fabricated. Experimental results exhibit that the phase shift is over 360° in the range of 355.8–358.8 GHz at 1 kHz, at an applied AC bias in the 0–50 V range. The phase change at different frequencies of AC bias voltage is also investigated, and the effect of the frequency of AC bias voltage is expressed by the coefficient of the amplitude of the bias voltage. |
| Databáze: | OpenAIRE |
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