The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2005
Filed:
Feb. 06, 2002
Louise Sengupta, Ellicott City, MD (US);
Steven C. Stowell, Mt. Airy, MD (US);
Yongfei Zhu, Columbia, MD (US);
Somnath Sengupta, Ellicott City, MD (US);
Luna H. Chiu, Abingdon, MD (US);
Xubai Zhang, Columbia, MD (US);
Louise Sengupta, Ellicott City, MD (US);
Steven C. Stowell, Mt. Airy, MD (US);
Yongfei Zhu, Columbia, MD (US);
Somnath Sengupta, Ellicott City, MD (US);
Luna H. Chiu, Abingdon, MD (US);
Xubai Zhang, Columbia, MD (US);
Paratek Microwave, Inc., Columbia, MD (US);
Abstract
A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.