In-Phase Power-Combined Frequency Triplers at 300 GHz
Résumé
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