Under the guidance of Dr ZHOU Xinyu, Research Assistant Professor and Head of the RF Microelectronics Circuit (RFMC) Laboratory in the Department of Electrical and Electronic Engineering at the Hong Kong Polytechnic University (PolyU), Mr BI Jingyun, an undergraduate student in the RF Microelectronics Circuit (RFMC) Laboratory at PolyU, has achieved a significant milestone by being invited to present his research at the International Microwave Symposium 2025 in San Francisco, United States.
Mr BI is the first undergraduate student from a Hong Kong higher education institution to receive this prestigious opportunity. As the first author of the groundbreaking research paper titled "Frequency-Query Enhanced Electromagnetic Surrogate Modeling with Edge Anti-aliasing Pixelation for Bandpass Filter Inverse Design," he has demonstrated PolyU's prominence in the field of microwave engineering.
Mr BI’s research introduces an innovative frequency-domain attention modelling framework based on Transformer architecture. Addressing significant challenges in the intelligent design of microwave devices, this framework differs from traditional convolutional neural networks (CNNs) and fully connected networks (MLPs). Through frequency query mechanism and dynamic attention weight allocation, it enables the global correlation of electromagnetic response, and effectively resolves the parameter coupling issue in diagonal connection modelling of microstrip structures.
Experimental results have shown that the new proxy model can accurately predict device performance with high precision using minimal data. This methodology has been successfully applied to designing ultra-compact bandpass filters, offering a new and interpretable design approach for complex microwave integrated circuits.
PolyU's success in nurturing interdisciplinary talent is demonstrated by the achievements of its young researchers. This international accomplishment not only inspires more students to pursue advanced scientific and technological research but also showcases the cutting-edge innovation capabilities of Hong Kong's young researchers to the international academic community.
The International Microwave Symposium is hosted by the Microwave Theory and Techniques Society (MTT-S) under the Institute of Electrical and Electronics Engineers (IEEE). It brings together the world's latest research in microwave, radio frequency, wireless technology and high-frequency semiconductor technology. Additionally, it promotes international technical exchanges and cooperation through conferences, seminars, group discussions and exhibitions.
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