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. 01, 2013
Filed:
Dec. 28, 2003
Peter Mailandt, Dallas, TX (US);
Tan Huynh, Hurst, TX (US);
Peter Mailandt, Dallas, TX (US);
Tan Huynh, Hurst, TX (US);
Andrew LLC, Hickory, NC (US);
Abstract
An antenna assembly having an operating frequency and a vertical radiation pattern with a main lobe axis defining a downtilt angle with respect to the earth's surface. The antenna assembly comprises a plurality of antennas in first, second, and third antenna groupsphysicallydisposed along a backplane, the backplane having a longitudinal axis along which the antennas are disposed, and a phase adjustment mechanismdisposedelectrically connectedbetween thesecondfirstand third antenna groups, such that adjustment of the phase adjustment mechanism results in variation of the vertical radiation pattern downtilt angle.