In-Phase Power-Combined Frequency Triplers at 300 GHz

Alain Maestrini (1) , John S. Ward (2) , Charlotte Tripon-Canseliet (3) , John J. Gill (2) , Choonsup Lee (2) , Hamid Javadi (2) , Goutam Chattopadhyay (2) , Imram Mehdi (2)

1 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
2 JPL - Jet Propulsion Laboratory
3 L2E - Laboratoire d'Electronique et Electromagnétisme

We report on the design, fabrication and characterization of a 300 GHz Schottky-diode frequency tripler made of two mirror-image integrated circuits that are power-combined in-phase in a single waveguide block using compact Y-junctions at the input and output waveguides. Each chip features six anodes on a 5 μm thick GaAs membrane. The tripler has 5-15% conversion efficiency measured across the 265-330 GHz band when driven with 50-250 mW of input power at room temperature. At 318 GHz it delivers a peak power of 26 mW with 11% conversion efficiency. The power-combined frequency multiplier is compared with a single-chip tripler designed for the same band using the same integrated circuit.

Mots clés: Waveguide; Compact design; Anode; Y shape; Frequency converter; Varactor diode; Power combiners; Combiner circuit; Planar diode; Local oscillator; Integrated circuit design; Peak power; Room temperature; Input signal; Conversion rate; Integrated circuit; Frequency multiplier; Microwave diode; Schottky barrier diode; Mirror image

Domaines: Electronique

Alain Maestrini, John S. Ward, Charlotte Tripon-Canseliet, John J. Gill, Choonsup Lee, et al.. In-Phase Power-Combined Frequency Triplers at 300 GHz. IEEE Microwave and Wireless Components Letters, 2008, 18 (3), pp.218 - 220. ⟨10.1109/LMWC.2008.916820⟩. ⟨hal-00609917⟩