Fig. 1. Hyperbolic tapered transmission line structure

Fig. 2. Variation of ρ with l/λ for Hyperbolic structure and 335 GHz frequency tripler diode unit

Fig. 3. Architecture of 335 GHz frequency tripler

Fig. 4. 335 GHz frequency tripler simulation result

Fig. 5. Assembly and test environment of 335 GHz frequency tripler, (a) entire modules, (b) measurement platform

Fig. 6. Test results of 335 GHz local oscillator based on frequency triple technology, (a) output power vs. frequency, (b) efficiency vs. input power at 349.5 GHz

Fig. 7. Relationship between output power and parasitic parameters, (a) output power vs. R_s, (b) output power vs. C_j0