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Friday, July 17, 2020 | History

3 edition of A superconducting tunnel junction receiver for millimeter-wave astronomy found in the catalog.

A superconducting tunnel junction receiver for millimeter-wave astronomy

A superconducting tunnel junction receiver for millimeter-wave astronomy

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  • 7 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Superconductivity.,
  • Millimeter waves.

  • Edition Notes

    StatementShing-Kuo Pan, Anthony R. Kerr.
    SeriesNASA technical memorandum -- 87792.
    ContributionsKerr, Anthony R., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15282258M

    A superconducting tunnel junction receiver for millimeter-wave astronomy / By Shing-Kuo. Pan, Anthony R. (Anthony Robert) Kerr and United States. Radio astronomy., Millimeter wave devices. Publisher: Washington, D.C.: National Aeronautics and Space Administration, Scientific and . Tunnel junction Conductive barrier junction Vg= mV Superconductors Barrier Substrate. Radio Astronomy Millimeter-Wave Receivers. With RF Without RF V Vg I SIS Tunnel Junction Mixing Superconducting Hypres TRW Berkeley Hitachi IBM Lincoln Laboratory NEC Northrop-Grumman.

    At the National Radio Astronomy Observatory in Tucson, Arizona a new multiple-feed receiver, operating at a wavelength of mm, has recently been built and installed on the 12 Meter Telescope at Kitt Peak [17]. The system is an 8-feed receiver, where the local oscillator is injected into the superconducting tunnel junction (SIS) mixers optically. superconductivity finally found application in astronomy, when Tom Phillips and David Woody installed the first superconducting tunnel junction (SIS) receiver at Caltech’s Owens Valley Radio Observatory in The steady advancement of SIS technology over the next 30 years.

    John R. Tucker ( – Ap ) was an American physicist who made several contributions to the fields of electronics, physics and microwave theory, known for generalizing the microwave mixer theory and presenting the body of work, known as the "Tucker theory", and for his fundamental theoretical contributions which resulted into various advancements in experimental Submillimeter. Dr. Noroozian earned his B.S. degree in Electrical Engineering from the Sharif University of Technology in , and his degree in Microelectronics from the Delft University of Technology in , where he worked with Prof. Teun Klapwijk on superconducting tunnel-junction (SIS) mixer receivers for the ALMA telescope ( GHz).


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A superconducting tunnel junction receiver for millimeter-wave astronomy Download PDF EPUB FB2

The superconducting tunnel junction (STJ) — also known as a superconductor–insulator–superconductor tunnel junction (SIS) — is an electronic device consisting of two superconductors separated by a very thin layer of insulating material.

Current passes through the junction via the process of quantum tunneling. Get this from a library. A superconducting tunnel junction receiver for millimeter-wave astronomy.

[Shing-Kuo Pan; Anthony R Kerr; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.].

Sensitive heterodyne receivers are being built at ever higher frequencies with superconducting (SIS) junctions as the first mixer. These devices have extremely sharp non-linearities in their current-voltage characteristics as a result of quantum-mechanical tunneling of electrons across thin insulating : Eric E.

Bloemhof. The receiver uses a Superconductor-Insulator-Superconductor (SIS) quasiparticle tunnel junction mixer to convert the millimeter wave signal to a microwave intermediate by: 2. The receiver uses a Superconductor - Insulator - Superconductor (SIS) quasiparticle tunnel junction mixer to convert the millimeter wavelength signal to a microwave intermediate : S.

Pan, A. Kerr. receiver systems using superconducting mixers as frequency downconverters are used for higher spectral resolution 10 [31]–[35]. These include the supercon-ductor–insulator–superconductor (SIS) tunnel junction mixer for 3 mm and hot-electron bolometer (HEB) mixers at shorter wavelengths.

A Low Noise Receiver for Submillimeter Astronomy. Conference Paper has been built using a Pb alloy superconducting tunnel junction (SIS). Bolometer Heterodyne Receiver for Millimeter Wave. The superconducting tunnel junction (STJ) detector typically consists of a superconductor-insulator-superconductor (SIS) thin-film structure where the insulator is a very thin (∼2 nm) native-oxide layer, usually Al 2 O 3.

Monolithic millimeter-wave two-dimensional horn imaging arrays Possible application areas include imaging arrays for remote sensing, plasma diagnostics, radiometry and superconducting tunnel-junction receivers for radio astronomy. > Published in: IEEE Transactions on Antennas and Propagation (Volume: A low‐noise micromachined millimeter‐wave heterodyne mixer using Nb superconducting tunnel junctions Appl.

Phys. Lett. 68, ( The mixer performance is optimized by using a backing plane behind the dipole antenna to tune out the capacitance of the tunnel junction. The lowest receiver noise temperature of 30±3 K (without any. Superconducting tunnel junction receiver for millimeter-wave astronomy Technical Report Pan, S K ; Kerr, A R The development and construction of an ultralow noise heterodyne receiver for millimeter wave astronomy is described along with its use for GHz Co line observations.

Cristiano, in Encyclopedia of Materials: Science and Technology, 3 Superconducting Mixers for Infrared Detection. Infrared and millimeter wave radiation detectors are realized by several superconducting devices, like STJs (in this context often called superconductor insulator superconductor (SIS) junctions), Josephson junctions, or hot electron bolometers.

Kerr's 99 research works with 1, citations and 5, reads, including: Room Temperature, Quantum-Limited THz Heterodyne Detection.

Not Yet. Submillimeter-wave antennas have been fabricated on 1-μm thick silicon-oxynitride membranes. This approach results in better patterns than previous lens-coupled antennas, and eliminates the dielectric loss associated with the substrate lens.

Measurements on a wideband log-periodic antenna at GHz, GHz and GHz show no sidelobes and 3-dB beamwidths between 40° and 60°. he superconducting tunnel diode, specifically the Superconductor-Insulator-Superconductor junction, is now the preferred mixing element for low-noise heterodyne receivers at millimeter and submillimeter wavelengths.

A low-noise micromachined millimeter-wave heterodyne mixer using Nb superconducting tunnel junctions Gert de Lange, a) Brian R.

Jacobson, and Qing Hu Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts hzstitute of Technology, Cambridge, Massachusetts Abstract. It is now about thirty years since Dayem and Martin 1 observed a step structure in the current-voltage (I–V) curve of a superconductor-insulator-superconductor (SIS) tunnel junction when subjected to microwave radiation at 38 GHz.

This step structure was later explained by Tien and Gordon 2 in terms of the photon assisted tunneling of single electrons across the tunnel barrier. KEYWORDS: Staring arrays, Telescopes, Astronomy, Oscillators, Spectroscopy, Receivers, Space telescopes, Heterodyning, Space operations Read Abstract + The Origins Space Telescope (OST) is a NASA study for a large satellite mission to be submitted to the Decadal Review.

The most critical element in our SIS receivers is the SIS tunnel Junction. Miller of ATandT Bell Labs provides us with the Junctions we use.

These are small area Pb a lloy JUnctions which have good I vs. V characteristics even at 4. 5 K [6]. Both PbBi and PbinAu alloy Junctions have been used successfully. A terahertz (THz) wave is loosely defined as electromagnetic waves in a frequency range from to 10 THz.

Due to their unique properties, THz waves have demonstrated many attractive applications in security, astronomy, atmospheric monitoring, and nondestructive materials testing [1–4].For THz passive imaging, the detector requires as high a sensitivity as a noise equivalent power.

A GHz quasioptical superconductor-insulator-superconductor (SIS) heterodyne receiver for submillimeter astronomy has been constructed with a double-sideband noise temperature of +25 K, where the system response is an average over a MHz i.f. bandwidth centered at GHz.The small superconducting energy gap of Al enabled us to study mixer performance at around the junction gap frequency, f g =(Δ 1 +Δ 2)/h≊87 GHz, of superconductor‐insulator‐superconductor (SIS) mixers, and at twice the junction gap frequency for S‐I‐normal metal (SIN) mixers (f g =Δ 1 /h) with available millimeter wave sources.We present performance of the first ALMA Band 5 production cartridge, covering frequencies from GHz to GHz.

ALMA Band 5 is a dual polarization, sideband separation (2SB) receiver based on all Niobium (Nb) Superconductor-Insulator-Superconductor (SIS) tunnel junction mixers, providing 16 GHz of instantaneous RF bandwidth for astronomy observations.