fly_fish
Junior Member level 3
A dual-band antenna with one feed integrates with two LNA.
C/N C/N1
Antenna-------->Power Divider -----------> LNA1
-----------> LNA2
C/N2
Supposing :
Power Divider has no insert loss,
Antenna has equal gain for both band;
LNA1 and LNA2 have equal noise figure.
C/N and C/N1 is measured in f1 band ,C/N2 is measured in f2 band.
Question:
Does C/N equal to C/N1 and C/N1 equal to C/N2?
C/N C/N1
Antenna-------->Power Divider -----------> LNA1
-----------> LNA2
C/N2
Supposing :
Power Divider has no insert loss,
Antenna has equal gain for both band;
LNA1 and LNA2 have equal noise figure.
C/N and C/N1 is measured in f1 band ,C/N2 is measured in f2 band.
Question:
Does C/N equal to C/N1 and C/N1 equal to C/N2?