Fig. 1. Block diagram of different balanced tripler

Fig. 2. Schottky barrier diode model and the core circuit of the 320GHz balanced tripler

Fig. 3. Structure and simulation result of the DC lowpass filter

Fig. 4. E-plane Y-junction waveguide and its amplitude and phase properties

Fig. 5. Structure and embedded impedance performance of symmetrical E-plane probe

Fig. 6. E-plane T-probe-based differential combining structure with related phase performance

Fig. 7. Complete architecture of the tripler based on the face-to-face differential structure

Fig. 8. External structure and lower cavity assembly details of the fabricated module

Fig. 9. Measurement setup of the tripler

Fig. 10. Input power curves and measurement results in different input power and bias