Oral Presentation

4K cryogenic test of prototype band 7+8 cartridge receiver

Author(s): Bangwon Lee (KASI)

Presenter: Bangwon Lee (Korea Astronomy and Space Science Institute)

The Band 7+8 cartridge receiver is a new receiver combining the RF frequency of ALMA band 7 and band 8. In this talk, I will present beam measurement, gain compression, stability results, and measurement setups. The cartridge receiver achieved more than 80% of aperture efficiency on both polarization, less than 4E-7 of Allan variance, and less than 5% of gain compression.