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:
Jul. 10, 2012
Filed:
Jun. 26, 2009
Yueh-chi Chang, Northborough, MA (US);
Kenneth S. Komisarek, Manchester, NH (US);
Gregory M. Fagerlund, Peabody, MA (US);
Landon L. Rowland, Westford, MA (US);
Kaichiang Chang, Northborough, MA (US);
Benjamin L. Caplan, Medford, MA (US);
Yueh-Chi Chang, Northborough, MA (US);
Kenneth S. Komisarek, Manchester, NH (US);
Gregory M. Fagerlund, Peabody, MA (US);
Landon L. Rowland, Westford, MA (US);
Kaichiang Chang, Northborough, MA (US);
Benjamin L. Caplan, Medford, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
An array antenna is provided that operates at high-band and low-band, comprising a first array of high-band radiators and a second array of low-band radiators, each respective low-band radiator disposed so as to be interleaved between the high-band radiators so as to share an aperture with the high-band radiators. Each low-band radiator comprises a coaxial section, a dielectric section, a waveguide, and a planar section. The dielectric section is formed of a continuous piece of dielectric material and includes a hollow opening formed perpendicular to the coaxial section, and a plurality of step transitions, wherein at least one of the step transitions is disposed within and partially fills the waveguide operably coupled to the planar section. The planar section is oriented to the portion of high-band radiators such that the output of the respective low-band radiator is disposed between and within the spacing between adjacent high-band-radiators.