APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver

Details APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008stt..conf..181m&link_type=article

Proceedings of the Ninteenth International Symposium on Space Terahertz Technology, held April 28-30, 2008, in Groningen. Edited

Computer Science

Performance

Scientific paper

A waveguide 1.25-1.39 THz Hot Electron Bolometer (HEB) balanced receiver was successfully developed, characterized and installed at the Atacama Pathfinder EXperiment (APEX) telescope. The receiver employs a quadrature balanced scheme using a waveguide 90-degree 3 dB RF hybrid, HEB mixers and a 180-degree IF hybrid. The HEB mixers are based on ultrathin NbN film deposited on crystalline quartz with a MgO buffer layer. Integrated into the multi-channel APEX facility receiver (SHeFI), the results presented here demonstrate exceptional performance; a receiver noise temperature of 1000 K measured at the telescope at the center of the receiver IF band 2-4 GHz, and at an LO frequency of 1294 GHz. Stability of the receiver is fully in line with the SIS mixer bands of the SHeFI, and gives a spectroscopic Allan time of more than 200 s with a noise bandwidth of 1 MHz.

Affiliated with

Also associated with

No associations

Rating

APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1699613