Title :
Phase noise of the Backward-wave oscillator based on a 3rd order PLL
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The processing of analysis, design and phase noise measurement of the Backward-wave oscillator (BWO) based on a 3rd order PLL is presented in this paper. The design utilizes a Charge-pump Phase-locked loop IC and a harmonic mixer in conjunction with a spectrum analyzer locking the BWO to a Tek 2782 spectrum analyzer. We adopt a GPIB cable connecting the spectrum analyzer to a computer and created a virtual instrument by Labview program on the screen. The SSB phase-noise of this Phase locked BWO was measured and the typical value in the frequency range 135 GHz to 160 GHz is better than 63 dBc/Hz at offset frequencie 1 kHz.
Keywords :
backward wave oscillators; charge pump circuits; millimetre wave integrated circuits; millimetre wave mixers; millimetre wave tubes; phase locked loops; phase noise; spectral analysers; 3rd order PLL; Tek 2782 spectrum analyzer; backward-wave oscillator; charge-pump phase-locked loop IC; frequency 135 GHz to 160 GHz; harmonic mixer; phase locked BWO; phase noise measurement; Dielectric measurements; Frequency measurement; Phase locked loops; Phase measurement; Phase noise; Power harmonic filters;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230246
