Metal Mesh Filters for Terahertz Receivers

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$70,000.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
NNC05CA80C
Agency Tracking Number:
040485
Solicitation Year:
2004
Solicitation Topic Code:
S2.01
Solicitation Number:
n/a
Small Business Information
VIRGINIA DIODES INC.
321 West Main Street, Charlottesville, VA, 22903-5537
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
788159445
Principal Investigator:
Jeffrey Hesler
Principal Investigator
(434) 297-3257
Hesler@VADiodes.com
Business Contact:
Thomas Crowe
Business Official
(434) 297-3257
Crowe@VADiodes.com
Research Institution:
n/a
Abstract
The best low-noise receiver solutions for frequencies above about 800 GHz rely on either a low-noise bolometric direct detector or a hot electron bolometric mixer. These receivers yield near quantum limited noise performance and have ultra broad signal bandwidth [ , , ]. However, due to their extreme sensitivity and inherently broad bandwidth the receivers are very sensitive to stray radiation. For direct detectors an input filter is required to define the receiver's frequency band and reject out of band energy. In the case of a heterodyne receiver, the signal band is defined by the back-end electronics, however, input filters are required to eliminate stray radiation that can saturate the mixer or create signal artifacts that degrade performance and prevent accurate calibration. Through this SBIR project VDI proposes to create a new generation of high performance and cost effective metal mesh filters for terahertz receivers based on innovative filter designs and fabrication techniques. These new technologies will allow the development of cost-effective and practical filters with the range of characteristics required for NASA's terahertz frequency space science and Earth science remote sensing programs.

* information listed above is at the time of submission.

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