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Superior terahertz radiation detection through novel micro circular log-periodic antenna engineered with an advanced
Rui Zhou1, Jiaqi Wang1, Zhemiao Xie1
1Advanced Micro-/Nano- Devices Lab, Department of Systems Design Engineering, University of Waterloo, Waterloo, N2L3G1, Canada.
Microsystems & Nanoengineering
|August 19, 2025
Summary
We developed a Micro Circular Log-Periodic Antenna (MCLPA) using an Evolutionary Neural Network (ENN) for enhanced terahertz (THz) detection. This novel antenna design offers ultra-broad bandwidth and high efficiency, improving THz sensing capabilities.
Area of Science:
- Electromagnetics and Applied Physics
- Antenna Engineering
- Terahertz Technology
Background:
- Terahertz (THz) radiation detection requires highly sensitive and efficient antenna systems.
- Traditional antenna design methods can be time-consuming and may not achieve optimal performance for specific applications.
- The integration of artificial intelligence in electromagnetic design is an emerging area for performance enhancement.
Purpose of the Study:
- To introduce a novel Micro Circular Log-Periodic Antenna (MCLPA) optimized using an advanced Evolutionary Neural Network (ENN) algorithm.
- To enhance the efficiency and performance of antennas for terahertz (THz) radiation detection.
- To demonstrate a new paradigm for antenna design by integrating algorithmic intelligence with structural innovation.
Main Methods:
- Development of a Micro Circular Log-Periodic Antenna (MCLPA) structure.
- Optimization of the MCLPA design using an advanced Evolutionary Neural Network (ENN) algorithm.
- Extensive electromagnetic characterization and performance analysis of the designed antenna.
Main Results:
- The proposed MCLPA achieved an ultra-broad operational bandwidth of 372 GHz (0.135-0.507 THz).
- Key performance metrics include a peak gain of 5.51 dBi, S11 of -13.68 dB, and a radiation efficiency of 82.39%.
- The antenna demonstrated superior sensitivity, low noise susceptibility, and fast response times crucial for THz detection.
Conclusions:
- The ENN-optimized MCLPA offers a significant breakthrough in THz antenna engineering, providing exceptional performance.
- The integration of ENN accelerates design time and reduces costs for developing advanced THz systems.
- This approach sets a new benchmark for next-generation THz detection and communication systems.
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