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. 27, 2004
Filed:
Sep. 28, 2001
James Matthew Skladany, Somersworth, NH (US);
Thomas S. Laubner, Merrimac, MA (US);
Tyco Electronics Corporation, Middletown, PA (US);
Abstract
The invention is a multi-band antenna in which two, three or more antennas are contained within a single housing/radome. Two top-loaded monopole antennas are nested together with one of the antennas being positioned between the ground plate and top plate of the other antenna. Inductive shunts for counteracting the capacitance in the two top-loaded monopole antennas can be provided by hollow conductive tubes in order to help the antenna more closely emulate a purely resistive 50 ohm impedance. A third, microstrip antenna may be positioned on top of the top conductive plate of the outer top-loaded monopole antenna. The cable for the microstrip antenna is routed through the ground plate and top plate of at least one of the top-loaded antennas and through the inside of one of the hollow inductive shunts.