Kavli Affiliate: Bradford A. Benson | First 5 Authors: Zhaodi Pan, Mira Liu, Ritoban Basu Thakur, Bradford A. Benson, Dale J. Fixsen | Summary: We have constructed a Fourier-transform spectrometer (FTS) operating between 50 and 330 GHz with minimum volume (355 x260 x64 mm) and weight (13 lbs) while maximizing optical throughput (100 $mathrm{mm}^2$ sr) […]