Sung‐Jin Ho

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About

Sung-Jin Ho is a pioneer in the development of microfabricated silicon components for millimeter-wave applications, a critical area for next-generation communications and sensing systems. His most notable contribution is the invention of a method to fabricate high-frequency waveguide couplers and tapered dielectric rod antennas directly from microetched silicon. By demonstrating that these complex structures can be realized through relatively simple wet etching combined with robotic process control, Ho opened a practical, scalable pathway for integrating millimeter-wave components into silicon-based platforms. This proof-of-concept work, published in 2009, has laid essential groundwork for compact, high-performance antennas and couplers used in advanced radar and 5G/6G technologies. While his highly specialized research has garnered targeted citations from peers in the microfabrication and RF engineering communities, his true impact lies in bridging the gap between traditional semiconductor processing and high-frequency electromagnetic design. Ho’s work exemplifies how clever process engineering can unlock new capabilities in wireless hardware, making him a key figure in the evolution of silicon-based millimeter-wave systems.