MUTC-PD-Based High-Efficiency Photonic Terahertz Generation and Radiation in the 275–296 GHz Band
Abstract
We design a photonic terahertz (THz) antenna operating in the 275-296 GHz band, integrating two identical modified uni-traveling-carrier photodiodes (MUTC-PDs), two impedance matching networks, a Wilkinson power combiner and a Vivaldi antenna. Simulation results show a saturated output power of 1.58 dBm at 280 GHz, achieving a 4.13× power enhancement through optimized impedance and power combining compared to a standalone device. The integrated antenna achieves a peak gain of 7.93 dBi, with reflection coefficients below -10 dB. The system demonstrates a power combining efficiency exceeding 95% for phase imbalances up to 20°, and the Wilkinson combiner exhibits only 0.76 dB insertion loss at 285 GHz, demonstrating high radiation and combining efficiency in the 275-296 GHz band.
Fields of Study & Subjects
Advanced Photonic Communication Systems
Millimeter-Wave Propagation and Modeling
Terahertz technology and applications
Publication details
- Journal / source
- Micromachines
- Publisher
- MDPI AG
- Volume
- 17
- Issue
- 2
- Pages
- 196–196
- Publication date
- 31 January 2026
- Language
- EN