Wide-range microwave frequency synthesis using an offset passive resonator

We demonstrate a technique to obtain wide synthesized tunability from the local oscillator (LO) of a low-noise, fixed-frequency microwave reference whose noise is suppressed by a high-Q cavity discriminator operated in a passive mode. The results show that under proper conditions the phase-locked LO...

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Bibliographic Details
Published inProceedings of the 2002 IEEE International Frequency Control Symposium and PDA Exhibition (Cat. No.02CH37234) pp. 584 - 589
Main Authors Howe, D.A., Hatt, A., Nelson, C., Walls, F.L., Garcia Nava, J.F., Sengupta, A.
Format Conference Proceeding
LanguageEnglish
Published Piscataway NJ IEEE 2002
Subjects
Amplifiers
Applied sciences
Circuit properties
Degradation
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Error correction
Exact sciences and technology
Frequency synthesizers
Local oscillators
Microwave oscillators
Noise measurement
Oscillators, resonators, synthetizers
Phase measurement
Phase noise
Resonance
Resonant frequency
Signal convertors
Phase noise
Resonator
Local oscillator
Cavity
High Q factor
Noise reduction
Mixer
1/f noise
Amplifier
Discriminator
Frequency synthesizer
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Summary:We demonstrate a technique to obtain wide synthesized tunability from the local oscillator (LO) of a low-noise, fixed-frequency microwave reference whose noise is suppressed by a high-Q cavity discriminator operated in a passive mode. The results show that under proper conditions the phase-locked LO's phase noise in the tunable approach presented here and that for the normal fixed-frequency mode are substantially the same. Thus the need for a number of filters, mixers, and amplifiers necessary for an additional synthesizer is eliminated.
ISBN:0780370821
9780780370821
DOI:10.1109/FREQ.2002.1075949