研究目的
To propose a novel reconfigurable reflectarray antenna (RRA) at 0.3 THz with 16×16 individually controlled 1-bit phasing elements for high gain and electronic beam-scanning capability.
研究成果
The proposed THz 1-bit RRA with high gain and beam-scanning capability is validated by theoretical calculations. The individual control of each phasing element is a critical advancement in THz RRA design, laying a solid foundation for practical realization of unique beam-forming and beam-scanning capabilities.
研究不足
The practical realization, especially individual control of each element, is challenging due to fabrication technology limitations. The bias lines share the same plane with the microstrip patches in THz frequencies, potentially causing interference.
1：Experimental Design and Method Selection:
The design involves a reconfigurable reflectarray antenna with individually controlled 1-bit phasing elements using a double-channel heterostructure HEMT for phase control.
2：Sample Selection and Data Sources:
The element consists of a shorted bow-tie microstrip patch and a HEMT.
3：List of Experimental Equipment and Materials:
SiC dielectric substrate, Ti/Al/Ni/Au for Ohmic contact, Ni/Au for schottky gate, and gold for microstrip patch and bias lines.
4：Experimental Procedures and Operational Workflow:
Element simulation conducted with ANSYS HFSS, practical biasing circuits designed for individual control of each element.
5：Data Analysis Methods:
Theoretical calculations validate the high gain beam scanning capability.
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