Automated resonant waveguide cavity system for complex permittivity measurements

Patent metadata

Field	Value
Publication number	US-11726121-B2
Application number	US-202117539582-A
Country	US
Kind code	B2
Filing date	Dec 1, 2021
Priority date	Dec 2, 2020
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

An automated resonant waveguide cavity system for determining one or complex permittivity measurements of a sample is provided. The automated resonant waveguide cavity system includes a resonant cavity, a waveguide coupled to the resonant cavity, a programmable network analyzer (PNA) coupled to the waveguide, and a computing device. The computing device includes a memory storing processor executable code for a determination engine and a processor executing the processor executable code to cause the determination engine to obtain data from the PNA. The data is respective to the sample within the resonant cavity. The determination engine further integrates a plurality of analytical and modeling functions in determining the complex permittivity values of the sample from the data.

First claim

What is claimed is:

1. An automated resonant waveguide cavity system for determining one or more complex permittivity measurements of a sample, the automated resonant waveguide cavity system comprising:
a resonant cavity;
a waveguide coupled to the resonant cavity;
a programmable network analyzer (PNA) coupled to the waveguide;
a computing device comprising at least one memory storing processor executable code for a determination engine and at least one processor executing the processor executable code to cause the determination engine to:
obtain data from the PNA, the data being respective to the sample within the resonant cavity, and
integrate a plurality of analytical and modeling functions in determining the one or more complex permittivity values of the sample from the data.

2. The automated resonant waveguide cavity system of claim 1 , wherein the determination engine generates and operates a graphical user interface (GUI) comprising a plurality of sections that provide interactive elements that control and configure the PNA.

3. The automated resonant waveguide cavity system of claim 2 , wherein the determination engine determines, as measurements, the one or more complex permittivity values of the sample in a millimeter-wave regime and provides the measurements for display by the GUI.

4. The automated resonant waveguide cavity system of claim 2 , wherein the computing device comprises a display for presenting the GUI.

5. The automated resonant waveguide cavity system of claim 2 , wherein the determination engine imports the data from the PNA into a simulation software of the plurality of analytical and modeling functions and automatically transmit an output of the simulation software into a computing platform of the plurality of analytical and modeling function.

6. The automated resonant waveguide cavity system of claim 1 , wherein the resonant cavity is dimensionally rectangular and is configured to contain the sample on a centered coupling element in an plane of the resonant cavity.

7. The automated resonant waveguide cavity system of claim 1 , wherein the resonant cavity comprises a plastic fixture that encapsulate the sample in a center region of the resonant cavity.

8. The automated resonant waveguide cavity system of claim 1 , wherein the determination engine determines a reflection coefficient with the PNA.

9. The automated resonant waveguide cavity system of claim 1 , wherein the determination engine extracts a resonant frequency and a Q-factor of the sample using a simulation software of the plurality of analytical and modeling functions.

10. The automated resonant waveguide cavity system of claim 1 , wherein the determination engine transmits a resonant frequency and a Q-factor to into a computing platform of the plurality of analytical and modeling functions.

11. A method for determining one or more complex permittivity values of a sample, the method implemented by a determination engine stored as processor executable code in a memory of a computing device, and the processor executable code being executed by at least one processor of the computing device, the method comprising:
obtaining data from a programmable network analyzer (PNA) coupled to a waveguide and a resonant cavity, the data being respective to the sample within the resonant cavity; and
integrating a plurality of analytical and modeling functions in determining the one or more complex permittivity values of the sample from the data.

12. The method of claim 11 , wherein the determination engine generates and operates a graphical user interface (GUI) comprising a plurality of sections that provide interactive elements that control and configure the PNA.

13. The method of claim 12 , wherein the determination engine determines, as measurements, the one or more complex permittivity values of the sample in a millimeter-wave regime and provides the measurements for display by the GUI.

14. The method of claim 12 , wherein the computing device comprises a display for presenting the GUI.

15. The method of claim 12 , wherein the determination engine imports the data from the PNA into a simulation software of the plurality of analytical and modeling functions and automatically transmit an output of the simulation software into a computing platform of the plurality of analytical and modeling function.

16. The method of claim 11 , wherein the resonant cavity is dimensionally rectangular and is configured to contain the sample on a centered coupling element in an plane of the resonant cavity.

17. The method of claim 11 , wherein the resonant cavity comprises a plastic fixture that encapsulate the sample in a center region of the resonant cavity.

18. The method of claim 11 , wherein the determination engine determines a reflection coefficient with the PNA.

19. The method of claim 11 , wherein the determination engine extracts a resonant frequency and a Q-factor of the sample using a simulation software of the plurality of analytical and modeling functions.

20. The method of claim 11 , wherein the determination engine transmits a resonant frequency and a Q-factor to into a computing platform of the plurality of analytical and modeling functions.

Assignees

• Battelle Memorial Institute

Inventors

• Karns Duane
• Weatherall James
• Barber Jeffrey
• Smith Barry

Classifications

• G01R27/2658 Primary

  Cavities, resonators, free space arrangements, reflexion or interference arrangements (G01R27/2647 takes precedence; optical methods G01R27/2682) · CPC title

• G01N22/00 Primary

  Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more (G01N3/00 - G01N17/00, G01N24/00 take precedence) · CPC title

• G01N22/02

  Investigating the presence of flaws · CPC title

• G01N22/04

  Investigating moisture content · CPC title

• H01P7/06

  Cavity resonators · CPC title