A new Cartridge Receiver Channel for the SEPIA Instrument at APEX
Paper in proceeding, 2026
In this paper, we present the design of a new cartridge receiver as a prospective upgrade of the SEPIA345 receiver on the APEX telescope. The receiver has all new optical and mechanical layout, featuring extra-wide IF, 4-20 GHz, with new 2SB mixers and OMT-based dual polarization capability covering the 272-376 GHz band. We report here on the performance of the cartridge receiver, closely compliant with the specifications set in the ALMA Wideband Sensitivity upgrade
APEX
ALMA cartridge receivers
SEPIA receiver
Author
Mathias Fredrixon
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Igor Lapkin
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Victor Belitsky
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Sven-Erik Ferm
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Alexei Pavolotski
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Leif Helldner
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Denis Meledin
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Erik Sundin
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Magnus Strandberg
Chalmers, Space, Earth and Environment, Onsala Space Observatory
François Joint
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Vincent Desmaris
Chalmers, Space, Earth and Environment, Onsala Space Observatory
35th IEEE International Symposium on Space THz Technology
35th IEEE International Symposium on Space THz Technology (ISSTT 2026) & METAFORA
Santiago, Chile,
Santiago, Chile,
Subject Categories (SSIF 2025)
Other Electrical Engineering, Electronic Engineering, Information Engineering
Astronomy, Astrophysics, and Cosmology