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:
Jan. 02, 2001
Filed:
Sep. 10, 1998
Edward F. Dziadek, Mont Vernon, NH (US);
Douglas F. Carey, Nashua, NH (US);
Spike Technologies, Inc., New York, NY (US);
Abstract
A sectored antenna system has one or more dielectric lenses, each having a surface and two or more low profile antenna feed devices. At least one of the feed devices radiate signals into said lens that emerge as separate directional beams, and/or the lenses receive incoming signals from different directions and focus them onto different antenna feed devices. The feed devices of the sectored antenna system are low-profile broadband feed devices, such as log periodic dipole arrays or tapered notch antennas. Special design guidelines are given for their use with a lens. In addition, a method to reduce the cut off frequency of the tapered notch antenna is shown.