Title :
A 100 GHz AM and PM noise measurement system: preliminary design and performance
Author :
How, D.A. ; Nelson, C. ; Walls, F.L. ; Nava, J. F Garcia ; Hati, A. ; Gupta, A. Sen
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
A 100 GHz AM and PM noise measurement system is described. The basic approach to its construction is to apply existing state-of-the-art, cross-correlation noise measurement techniques to 100 GHz (W-band). The system uses two amplitude-noise and phase-noise detectors operating in parallel with cross-correlation spectrum analysis so that measurement-system noise averages down as m-(12)/, given m available averages. The approach, widely regarded at lower frequencies as the dual-channel PM/AM noise measurement approach, has some new considerations in extending the frequency range to W-band. A new AM/PM modulator used to calibrate the 100 GHz measurement system is discussed. Data are presented for the measurement system´s noise floor. We give AM and PM noise measurements of an InP amplifier with a gain of 10 dB to 15 dB.
Keywords :
amplitude modulation; calibration; correlation methods; electric noise measurement; electronic equipment testing; millimetre wave measurement; modulators; phase modulation; phase noise; spectral analysis; 100 GHz; AM noise measurement system; AM/PM modulator; EHF; InP; InP amplifier; MM-wave measurement system; PM noise measurement system; W-band; amplitude noise detectors; calibration; cross-correlation noise measurement techniques; cross-correlation spectrum analysis; phase noise detectors; Detectors; Floors; Frequency; Gain; Indium phosphide; Noise level; Noise measurement; Phase detection; Phase measurement; Phase noise;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition, 2002. IEEE International
Print_ISBN :
0-7803-7082-1
DOI :
10.1109/FREQ.2002.1075970
