Title :
A 340GHz sub-harmonic mixer based on planar Schottky diodes
Author :
Li Miao ; Jun Jiang ; Cheng Wang ; Xian-Jin Deng ; Bin Lu
Author_Institution :
Terahertz Res. Center, China Acad. of Eng. Phys. Mianyang, Mianyang, China
Abstract :
This letter presents the design and fabrication of a 340GHz sub-harmonic mixer (SHM), which mainly includes a pair of anti-parallel planar Schottky diodes fixed onto a quartz-based microstrip circuit chip. At room temperature, the mixer performances were measured in 313GHz-360GHz. Our recent results show that the signal side band (SSB) conversion losses were from 9.78 dB to 12.74dB, and the double side band (DSB) noise temperature was bellow 1000 K with an local oscillator (LO) power ranging from 2.8mW to 4 mW. The minimum DSB noise temperature was messured 883K @327 GHz.
Keywords :
Schottky diode mixers; microstrip circuits; quartz; submillimetre wave mixers; SHM; SSB; SiO2; anti-parallel planar Schottky diodes; double side band; frequency 313 GHz to 360 GHz; local oscillator; loss 9.78 dB to 12.74 dB; power 2.8 mW to 4 mW; quartz-based microstrip circuit chip; signal side band; sub-harmonic mixer; temperature 293 K to 298 K; Amplitude modulation; Integrated circuit modeling; Mixers; Noise; Radio frequency; Schottky diodes; Temperature measurement;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956518
