研究目的
Investigating the design of an antenna array unit-cell for improved matching efficiency to sources and loads with low input resistance and capacitive reactance, specifically uni-travelling-carrier photodiodes (UTC-PD).
研究成果
The proposed antenna array unit-cell design significantly improves the matching efficiency to UTC-PDs, achieving a 3 dB increase in radiated power and a 50% bandwidth. This approach offers a practical solution for enhancing the performance of mm- and sub-mm wave antennas in photonic generation and reception applications.
研究不足
The equivalent network model neglects the interaction of the reflector with the reactive fields of the antenna, which may affect the accuracy of predictions for very close reflector placements.
1：Experimental Design and Method Selection:
The study uses an equivalent network model for antenna arrays backed by a reflector to analyze and optimize the array's matching efficiency.
2：Sample Selection and Data Sources:
The research focuses on the design and simulation of an antenna array unit-cell, with parameters defined for optimal performance.
3：List of Experimental Equipment and Materials:
The unit-cell is printed in
4：350-μm thick gold, and simulations are conducted using ANSYS HFSS. Experimental Procedures and Operational Workflow:
The methodology involves deriving closed-form expressions for the network elements, calculating the antenna active input impedance and radiation efficiency, and optimizing the unit-cell geometry.
5：Data Analysis Methods:
The results are analyzed to evaluate the improvement in matching efficiency and bandwidth.
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