Design of a Novel 0.25–0.3THz 4th-Harmonic Mixer Using Planar THz Schottky Diodes

This paper presents the design and simulation a novel 0.25-0.3 THz 4th-harmonic mixer, using a pair of anti-parallel planar THz Schottky diodes. The substrate circuits have RF probe, a Hammer filter and an IF filter. The lowest conversion loss by simulation is 15.87dB with 8dBm LO power. Over an RF frequency band of 0.25-0.3THz, the conversion loss is below 15.53dB.