Matched wideband low-noise amplifiers for radio astronomy

Details Matched wideband low-noise amplifiers for radio astronomy Matched wideband low-noise amplifiers for radio astronomy

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rsci...80d4702w&link_type=abstract

Review of Scientific Instruments, Volume 80, Issue 4, pp. 044702-044702-5 (2009).

Astronomy and Astrophysics

Astronomy

1

Astronomical And Space-Research Instrumentation, Filters

Scientific paper

Two packaged low noise amplifiers for the 0.3-4 GHz frequency range are described. The amplifiers can be operated at temperatures of 300-4 K and achieve noise temperatures in the 5 K range (<0.1 dB noise figure) at 15 K physical temperature. One amplifier utilizes commercially available, plastic-packaged SiGe transistors for first and second stages; the second amplifier is identical except it utilizes an experimental chip transistor as the first stage. Both amplifiers use resistive feedback to provide input reflection coefficient S11<-10 dB over a decade bandwidth with gain over 30 dB. The amplifiers can be used as rf amplifiers in very low noise radio astronomy systems or as i.f. amplifiers following superconducting mixers operating in the millimeter and submillimeter frequency range.

Affiliated with

Also associated with

No associations

Rating

Matched wideband low-noise amplifiers for radio astronomy 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 Matched wideband low-noise amplifiers for radio astronomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Matched wideband low-noise amplifiers for radio astronomy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1865483