We are glad highlight a recent presentation by our partner Universidad Carlos III de Madrid (UC3M) at the SPIE Photonics West 2026 conference. On 19 January 2026, PhD student Yuma Kawamoto delivered an oral presentation titled: “Wideband dielectric rod antenna implemented on FR-4 substrate for THz application” as part of Paper 13895-3, in Room 215 (Moscone South, Level 2).
The presented work introduces a silicon dielectric rod antenna (DRA) designed for broadband and cost-effective terahertz (THz) transmitters integrated with indium phosphide (InP) photoconductive devices.
Key elements include:
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Tapered-slot antenna (TSA) for efficient power transfer
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Integration of DRA + InP active device via flip-chip bonding
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Realization on FR-4 PCB, supporting future photonic circuit integration
Simulation results demonstrate:
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4-dB bandwidth exceeding 200 GHz
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Realized gain > 5 dBi from 100 GHz to 220 GHz
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High potential for industrial THz applications, including:
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Wireless communications
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Non-destructive spectroscopy
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Imaging and sensing
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Yuma Kawamoto is an Industrial PhD Student at UC3M & LeapWave Technologies (Spain). Yuma received his B.S. and M.S. in Engineering Science from Osaka University, Japan, and currently focuses on THz device integration and packaging for wireless communications and sensing systems.
📷 Moments from the Presentation
