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Spectra from 0.5 to 0.6THz play critical roles in planetary science, astrophysics and radio-astronomy as various chemical species including water, nitrates (NO2, N2O, NH3) and organics (CH4 and HCN) can either absorb or reflect radiation in this frequency regime. Accordingly, NASA and ESA have developed a wide range of spectroscopic sounding instruments to investigate our solar system. Current LO...
In this paper, a novel circuit topology of CMOS divide-by-three injection-locked frequency divider is demonstrated. By using a differential direct injection pair with a LC-tank oscillator, the proposed circuit can perform the division ratio of three while the wide locking range is obtained. Based on the presented circuit architecture, a V-band frequency divider is implemented in 65-nm CMOS for demonstration...
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