We present phase-noise measurements in support of terahertz electronics. Using digital phase-noise measurement techniques and an even-harmonic mixer, we achieve a phase-noise measurement system in waveguide (WR1.5). At 670 GHz an upper bound of this system's noise floor is found to be -20, -40, and -60 dBc/Hz at 1, 100, and 10000 Hz offsets, respectively. In addition, a commercial, low-phase-noise, 670 GHz source is measured at offset frequencies from 0.1 Hz to 1 MHz.
Proceedings Title: Proceedings of the 2012 IEEE International Frequency Control Symposium
Conference Dates: May 22-24, 2012
Conference Location: Baltimore, MD
Conference Title: 2012 IEEE International Frequency Control Symposium
Pub Type: Conferences
frequency control, harmonic mixers, metrology, phase noise, ubmillimeter wave measurements