4 References

Texas Instruments, ADC12DJ5200RF 10.4GSPS Single-Channel or 5.2GSPS Dual-Channel, 12-bit, RF-Sampling Analog-to-Digital Converter (ADC) data sheet.
Planet Analog, A close look at active vs. passive RF converter front-ends.
Texas Instruments, Unraveling the practical mysteries behind RF converter front ends, seminar.
Texas Instruments, The Fine Art of Passive Matching a High-Speed A/D Converter Analog Input Frontend, application note.
Texas Instruments, So What Are S-parameters Anyway?, technical article.
Texas Instruments, So, What's a VNA Anyway?, technical article.
Texas Instruments, So, What's the Deal with Frequency Response, technical article.