Journal of Infrared and Millimeter Waves, Volume. 44, Issue 2, 163(2025)
The research on polarization-tunable terahertz GaAs photoconductive antenna array
Figures & Tables(9)
Fig. 1. Experimental setup for light pulse differentiation based on birefringent crystal
Fig. 2. Linearly polarized terahertz wave control of array antenna: (a)30°; (b) 60°; (c) 120°; (d) 150°
Fig. 3. Mutual coupling and inter-modulation interference in the antenna array
Fig. 6. Gain and radiation pattern simulation results of the antenna array: (a) gain; (b) radiation pattern
Table 1. Excitation amplitude at different deflection angles (normalized)
View tableView in ArticleTable 1. Excitation amplitude at different deflection angles (normalized)
Angle A + C B + D A C B D 0° 2.0000 0.0000 1.0000 1.0000 0.0000 0.0000 30° 2.0000 1.1547 1.0000 1.0000 0.5774 0.5774 60° 2.0000 3.4641 1.0000 1.0000 1.7321 1.7321 90° 0.0000 2.0000 0.0000 0.0000 1.0000 1.0000 120° 2.0000 -3.4641 1.0000 1.0000 -1.7321 -1.7321 150° 2.0000 -1.1547 1.0000 1.0000 -0.5774 -0.5774 180° 2.0000 0.0000 1.0000 1.0000 0.0000 0.0000
Table 2. Parameters of antenna structure
View tableView in ArticleTable 2. Parameters of antenna structure
Parameters Antenna period P Antenna length L Transmission line width W Antenna Gap g Element spacing D Dimensions/（μm） 4000 100 30 5 300
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Chen-Gang DONG, Wei SHI, Xiao-Wei HAN, Zhi-Quan WANG, Xin WANG, Xiu-Xing ZHANG. The research on polarization-tunable terahertz GaAs photoconductive antenna array[J]. Journal of Infrared and Millimeter Waves, 2025, 44(2): 163
Paper Information
Category: Millimeter Wave and Terahertz Technology
Received: Jul. 8, 2024
Accepted: --
Published Online: Mar. 14, 2025
The Author Email: SHI Wei (swshi@mail.xaut.edu.cn)
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