Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv

Details Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999thze.confe...1t&link_type=abstract

IEEE 7th International Conference on Terahertz Electronics (THz '99), 25-26 November 1999, Nara, Japan

Computer Science

Superconducting Receiver, Terahertz Techniques, Hot-Electron Bolometer Mixer

Scientific paper

We have developed a terahertz frequency fixed tuned waveguide heterodyne receiver employing an NbN superconductive hot-electron bolometer mixer. Measurement with a Fourier transform spectrometer shows that the response is centered near 1.1 THz with a bandwidth of about 400 GHz. Since the required local oscillator (LO) drive is very low, we operate the receiver with all solid-state LO units, comprising of a Gunn oscillator followed by 2 stages of varactor multipliers. The mixer is operated at 4.2 K bath temperature. Noise measurements were performed using the standard Y-factor method with hot (295 K) and cold (77 K) loads at an intermediate frequency of 1.4 GHz. At 872 GHz, we measured a Y-factor of 1.36. At 1.035 THz and 1.26 THz, the Y-factors are 1.26 and 1.185 respectively.

Affiliated with

Also associated with

No associations

Rating

Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv 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 Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-Noise Terahertz Waveguide Hot-Electron Bolometer Heterodyne Receiv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1514297