Abstract The Submillimeter Array, a collaborative project of the Smithsonian Astrophysical
Observatory and the Academia Sinica Institute of Astronomy and Astrophysics, has begun …

Superconducting detectors will play an increasingly significant role in astrophysics,
especially at millimeter through far-IR wavelengths, where the scientific opportunities …

As the Atacama Large Millimeter/submillimeter Array (ALMA) nears completion, 73 dual-
polarization receivers have been delivered for each of Bands 3 (84-116 GHz) and 6 (211 …

Radio astronomy is a branch of science that allows observation of natural radio signals from
cosmic sources. Microwave techniques are employed in large radio telescope systems in …

This paper presents a comprehensive overview of the development and utilization of a
micromachined silicon-on-insulator (SOI) fabrication process that has enabled the …

A fixed-tuned superconductor-insulator-superconductor (SIS) receiver has been designed to
operate in the 250-350-GHz frequency band. This receiver has a double-side-band noise …

A review of recent developments in the techniques and instrumentation used for sensitive
millimeter–and submillimeter–wave astronomical observations is given. The capabilities of …

Design details are given for a 205-270 GHz fixed-tuned SIS receiver in which the SIS mixer
and HEMT IF amplifier are integrated into a single compact unit. The mixer and IF amplifier …

We report results on two full height waveguide receivers that cover the 200–290 GHz and
380–510 GHz atmospheric windows. The receivers are part of the facility instrumentation at …

Lattice-cooled superconducting hot-electron bolometric mixers are used in a submillimeter-
wave waveguide heterodyne receiver. The mixer elements are niobium nitride film with 3.5 …