Abstract
IEEE , Christine Weston, Graduate Student Member , IEEE ,
Daniel Weyer , Member , IEEE, Fred Buhler, Daniel Lambalot,
and Michael P. Flynn , Fellow, IEEE
I
N THE above article [1], the NF reported in Table IV
is based on the hot/cold source method described in
Section VII. While an arrayed system improves overall SNR,
the NF of an arrayed system is the same as the single-channel
NF, if we consider the increas ed antenna aperture [2]–[4].
We measure the single-channel (antenna to digital) double-