140 GHz Schottky Multiplier Based on a Novel Dual-Channel Output Probe

As an important device for generating high-frequency terahertz signals, teraherz frequency multipliers have a wide range of applications1, involving aerospace, radio frequency communication systems, UAV remote sensing, security applications and other fields. Due to the changing usage environment, the requirements for device miniaturization are becoming more stringent. Different heterogeneous integrated diodes are also evolving2, and considering the application scenarios and anti-interference capabilities, miniaturized multi-channel output has become a research hotspot. In this paper, a new type of dual-channel output waveguide microstrip transition probe is proposed, which has a good power distribution effect and provides a good idea for the miniaturization of multi-output frequency doubling sources. The simulation results show that when the feed power is 250 mW, the consistency of the dual-channel output is good, the conversion efficiency of the unilateral side is higher than 15% in 131–147 GHz, and the maximum output power reaches 42 mW.