Millimeter- and submillimeter-wave noise generator
August 21, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2658992 3750168 3750175 Filtered-noise jammer Sonar target simulator Method and apparatus for enhancing radiometric imaging Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment Microwave radiometer and methods for sensing atmospheric moisture and temperature EAS system with requency hopping Resonant tunneling transistor noise generator InventorsAssigneeApplicationNo. 09932977 filed on 08/21/2001US Classes:331/78, ELECTRICAL NOISE OR RANDOM WAVE GENERATOR324/637, Using transmitted or reflected microwaves356/450, BY LIGHT INTERFERENCE (E.G., INTERFEROMETER)342/156, Interferometer250/493.1, RADIANT ENERGY GENERATION AND SOURCES342/14, ECM (Electronic countermeasures, i.e., jamming)342/371, With electronic scanning367/1, SONAR COUNTER-MEASURES702/57, Electrical signal parameter measurement system455/67.12, Using a chamber (e.g., room testing or audio surveillance, etc.)324/640, To determine water content340/572.2, Specified relationship between field and detection frequencies (e.g., nth order harmonics)257/25, Employing resonant tunneling257/449, Schottky barrier (e.g., a transparent Schottky metallic layer or a Schottky barrier containing at least one of indium or tin (e.g., SnO 2 , indium tin oxide))342/202, For pulse modulation342/13, RADAR EW (ELECTRONIC WARFARE)375/261, Quadrature amplitude modulation455/324, Homodyne (i.e., zero beat or synchrodyne reception)331/107SL, Stripline type331/117DDistributed parameter resonator transistor oscillatorsExaminersPrimary: Kinkead, ArnoldAttorney, Agent or FirmInternational ClassH03B 2900AbstractA noise generator for generating multi-octave, high-level, millimeter- and submillimeter-wave noise is disclosed. According to one embodiment of the invention, the noise generator includes: a microwave noise source; a microwave power-amplifier chain; a level-set attenuator; a frequency multiplier; and a transmission structure. The output of the generator has a high-intensity noise power spectrum over a frequency range from about 60 GHz to about 1 THz. This type of noise is particularly suited and has sufficient power for testing and calibrating millimeter- and submillimeter-wave components, devices, and circuits; material evaluation and characterization; and for use as a broadband millimeter- and submillimeter-wave noise source for a Fourier Transform Spectrometer.Other References
Field of SearchELECTRICAL NOISE OR RANDOM WAVE GENERATORDistributed parameter resonator transistor oscillators WITH DISTRIBUTED PARAMETER RESONATOR Stripline type Using resonant frequency Using transmitted or reflected microwaves For excitation Including a test sample and control sample Spectrometer components Interferometer BY LIGHT INTERFERENCE (E.G., INTERFEROMETER) RADIANT ENERGY GENERATION AND SOURCES Stripline | |
