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:
Aug. 07, 2012
Filed:
Dec. 18, 2009
Nirod K. Das, Ledgewood, NJ (US);
Nirod K. Das, Ledgewood, NJ (US);
Polytechnic Institute of New York University, Brooklyn, NY (US);
Abstract
A 'wireless cable' (also referred to as a 'free-space waveguide'), which does not require a continuous body of conducting wire, is provided. Rather, a series of conducting rings, each loaded with a suitable capacitance element, is properly arranged in an empty medium. The distance between the conducting ring elements is of the order of half the wavelength of the signal to be carried, or less. Normally, the series of ring elements would operate as an antenna array, radiating the signal power away from the structure. However, under suitable design conditions, ideally all the signal power can be directed along an axis of the series of conducting ring elements. A signal source can be connected to the ring element at one end of the series, and a suitable electrical load be connected to the element at the opposite end to collect the guided signal power. Additional matching circuits may be provided to properly couple the source and load to the wireless cable.