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:
Oct. 07, 2025
Filed:
Dec. 20, 2024
Saltenna Inc., McLean, VA (US);
Igor Smolyaninov, Columbia, MD (US);
Quirino Balzano, Annapolis, MD (US);
Saltenna Inc., McLean, VA (US);
Abstract
Surface electromagnetic wave (SEW) antennas for maintaining resonance frequency in response to proximity to a conducting surface and related methods are described. In some implementations, an SEW antenna may include a tip with a spherical particle configured to maintain the antenna's resonance frequency when in proximity to a conductive surface. The antenna may feature a resonant helix that supports a strong electric field at the tip and a strong magnetic field within its core, facilitating efficient energy transfer to surface plasmon polaritons. The antenna may comprise one or more feed points located on the resonant helix, with each feed point corresponding to a specific operating frequency band, enabling the antenna to support multiband operation. This configuration may allow for enhanced bandwidth and reduced antenna dimensions, overcoming the Chu-Harrington limit and enabling compact design for applications where space is at a premium. Dimensions may be reduced through loading of the helix.