Patents Assigned to Spectral Solutions, Inc.
  • Cryoelectronic receiver front end for mobile radio systems
    Patent number: 6205340
    Abstract: The present invention relates to a novel use of cryoelectronic equipment to implement an extremely sensitive and stable receiver front end for UHF, microwave, and millimeter wave applications. The invention is particularly applicable to base station receivers in mobile radio systems, where the range and capacity of the systems are typically limited by the base station receiver sensitivity.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: March 20, 2001
    Assignee: Spectral Solutions, Inc.
    Inventors: Robert M. Yandrofski, Gerhard A. Koepf, David O. Patton
  • Superconductive planar radio frequency filter having resonators with folded legs
    Patent number: 6122533
    Abstract: A planar filter for performing signal filtering at radio frequencies is provided. The planar filter can include asymmetrical resonators, wherein each resonator is asymmetrical about a longitudinal center axis through the resonator. In addition, the resonators can be grouped in coupled pairs such that the resonators in each coupled pair are asymmetrical about a longitudinal center axis between the paired resonators. In addition, a coupling structure is provided that includes both distributed coupling and tapped coupling to a resonator. Further, a bandstop filter device is provided that includes coupling between resonators in the filter.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: September 19, 2000
    Assignee: Spectral Solutions, Inc.
    Inventors: Zhihang Zhang, Attila Weiser, Jr., Jonathan Raymond Scupin, Linda D'Evelyn
  • Cryoelectronic receiver front end
    Patent number: 6104934
    Abstract: The present invention relates to a novel use of cryoelectronic equipment to implement an extremely sensitive and stable receiver front end for UHF, microwave, and millimeter wave applications. The invention is particularly applicable to base station receivers in mobile radio systems, where the range and capacity of the systems are typically limited by the base station receiver sensitivity.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: August 15, 2000
    Assignee: Spectral Solutions, Inc.
    Inventors: David O. Patton, Robert M. Yandrofski, Gerhard A. Koepf, Robert F. Arentz, Jerry Lynn Martin