A 170-GHz Modulator Based on Doule Schottky Diodes with Differential-Feed Technique

In this paper, we present a 170-GHz modulator combined with series Schottky diodes and microstructure with differential-feed technique. The diodes are controlled by the bias voltage to change the switching characteristics. Then, the resonant mode is controlled to realize the amplitude modulation of THz (terahertz) waves. The simulation results indicate that the modulator can achieve an insertion loss of 2dB and a maximum modulation depth of 17dB.