ALMA Memo #299

A Martin-Puplett Interferometer Side-Band Separation Module for 600 - 720 GHz

A side-band separation receiver module for the 600 to 720 GHz ALMA band is proposed. The design is based on a cold Martin-Puplett Interferometer (MPI) with reflective optics. The operation principle and design parameters of the module are presented. The MPI SSB module performance with lossless optical components is compared with a DSB module using the same mixer and taking into account an atmospheric model for the 600 to 720 GHz band.

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Last modified: April 11, 2000