https://www.nist.gov/publications/tunable-x-band-opto-electronic-synthesizer-ultralow-phase-noise
Microwave signals with low phase noise in the X-band (8-12 GHz) are essential for widespread technologies and important scientific developments.
x bandphase noiseoptoelectronicsynthesizer
https://www.nxp.com/products/no-longer-manufactured/low-phase-noise-lo-generator-for-vsat-applications:TFF11096HN
Low phase noise LO generator for VSAT applications Archived content is no longer updated and is made available for historical reference only.
phase noisenxp semiconductorslowgeneratorvsat