Q1. "Filter in front of LNA" vs "LNA in front of filter"
A1. "LNA in front of filter" (w/ proper frequency response) provides better RF performance.
Q2. PA linearity index?
Q3. Spectrum Analyzer : Resolution BW vs Video BW
A3. Resolution BW : frequency axis grid
Video BW : displayed spectrum is low-pass filtered.
Q4. Btwn TDD and FDD, which requires higher quality power supply? why?
(same Fc, BW, 64QAM and peak power)
A4. FDD. Higher power supply helps inter band seperation.
