Millimeter Wave Sensor For On-Line Inspection Of Thin Sheet Dielectrics
Abstract
A millimeter wave sensor is provided for non-destructive inspection of thin sheet dielectric materials. The millimeter wave sensor includes a Gunn diode oscillator (GDO) source generating a mill meter wave electromagnetic energy signal having a single frequency. A heater is coupled to the GDO source for stabilizing the single frequency. A small size antenna is coupled to the GDO source for transmitting the millimeter wave electromagnetic energy signal to a sample material and for receiving a reflected millimeter wave electromagnetic energy signal from the sample material. Ferrite circulator isolators coupled between the GDO source and the antenna separate the millimeter wave electromagnetic energy signal into transmitted and received electromagnetic energy signal components and a detector detects change in both amplitude and phase of the transmitted and received electromagnetic energy signal components. A millimeter wave sensor is provided for non-destructive inspection of thin sheet dielectric materials. The millimeter wave sensor includes a Gunn diode oscillator (GDO) source generating a mill meter wave electromagnetic energy signal having a single frequency. A heater is coupled to the GDO source for stabilizing the single frequency. A small size antenna is coupled to the GDO source for transmitting the millimeter wave electromagnetic energy signal tomore »
- Inventors:
-
- Westmont, IL
- Naperville, IL
- Downers Grove, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 879454
- Patent Number(s):
- 5886534
- Application Number:
- 08/927363
- Assignee:
- The University of Chicago (Chicago, IL)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Bakhtiari, Sasan, Gopalsami, Nachappa, and Raptis, Apostolos C. Millimeter Wave Sensor For On-Line Inspection Of Thin Sheet Dielectrics. United States: N. p., 1999.
Web.
Bakhtiari, Sasan, Gopalsami, Nachappa, & Raptis, Apostolos C. Millimeter Wave Sensor For On-Line Inspection Of Thin Sheet Dielectrics. United States.
Bakhtiari, Sasan, Gopalsami, Nachappa, and Raptis, Apostolos C. Tue .
"Millimeter Wave Sensor For On-Line Inspection Of Thin Sheet Dielectrics". United States. https://www.osti.gov/servlets/purl/879454.
@article{osti_879454,
title = {Millimeter Wave Sensor For On-Line Inspection Of Thin Sheet Dielectrics},
author = {Bakhtiari, Sasan and Gopalsami, Nachappa and Raptis, Apostolos C},
abstractNote = {A millimeter wave sensor is provided for non-destructive inspection of thin sheet dielectric materials. The millimeter wave sensor includes a Gunn diode oscillator (GDO) source generating a mill meter wave electromagnetic energy signal having a single frequency. A heater is coupled to the GDO source for stabilizing the single frequency. A small size antenna is coupled to the GDO source for transmitting the millimeter wave electromagnetic energy signal to a sample material and for receiving a reflected millimeter wave electromagnetic energy signal from the sample material. Ferrite circulator isolators coupled between the GDO source and the antenna separate the millimeter wave electromagnetic energy signal into transmitted and received electromagnetic energy signal components and a detector detects change in both amplitude and phase of the transmitted and received electromagnetic energy signal components. A millimeter wave sensor is provided for non-destructive inspection of thin sheet dielectric materials. The millimeter wave sensor includes a Gunn diode oscillator (GDO) source generating a mill meter wave electromagnetic energy signal having a single frequency. A heater is coupled to the GDO source for stabilizing the single frequency. A small size antenna is coupled to the GDO source for transmitting the millimeter wave electromagnetic energy signal to a sample material and for receiving a reflected millimeter wave electromagnetic energy signal from the sample material. Ferrite circulator isolators coupled between the GDO source and the antenna separate the millimeter wave electromagnetic energy signal into transmitted and received electromagnetic energy signal components and a detector detects change in both amplitude and phase of the transmitted and received electromagnetic energy signal components.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 23 00:00:00 EST 1999},
month = {Tue Mar 23 00:00:00 EST 1999}
}